Entries |
Document | Title | Date |
20080218558 | Driver Device And Liquid Droplet Ejection Head - In a switch (mechanical switch) in a drive circuit, an electric potential according to the temperature of a driver IC is given to a gate electrode from a switch control circuit. During normal operation, a lever is in contact with terminals, and thus a terminal connected to an input terminal to which power is supplied from outside and a terminal connected to the drive circuit are connected to each other. On the other hand, when the electric potential given to the gate electrode is equal to or higher than a predetermined value, the lever is deformed due to electrostatic forces between the lever and the gate electrode and separates from the terminal, and thus the connection between the terminals is disconnected. The driver IC including the switch and the above-mentioned circuit is constructed as MEMS. | 09-11-2008 |
20080218559 | PIEZOELECTRIC DEVICE, PROCESS FOR PRODUCING THE SAME, AND LIQUID DISCHARGE DEVICE - A piezoelectric device includes a substrate; and a laminated film formed above the substrate. The laminated film includes a lower electrode layer, a piezoelectric layer, and an upper electrode layer formed in this order, and the lower electrode layer is a metal electrode layer containing as one or more main components one or more nonnoble metals and/or one or more nonnoble alloys. Preferably, the one or more main components are one or more of the metals Cr, W, Ti, Al, Fe, Mo, In, Sn, Ni, Cu, Co, and Ta, and alloys of the metals. | 09-11-2008 |
20080239015 | HYBRID MANIFOLD FOR AN INK JET PRINTHEAD - A print head has an array of jets to dispense ink onto a printing surface, an array of actuators to cause the jets to dispense ink and an ink manifold to route ink to the array of jets, the ink manifold being formed of at least one polymer layers. A print manifold has an array of jets formed on a metal plate, at least one polymer layer mounted on the metal plate, the polymer layer including an array of manifolds corresponding to the array of jets and an electronic circuit board mounted on the polymer layer, the electronic circuit board having an array of holes corresponding to the array of manifolds. A print system includes at least one ink reservoir at least one umbilical to transport ink out of the ink reservoir and a print head as described above. | 10-02-2008 |
20080239016 | LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS - A liquid discharge head is provided, which includes a piezoelectric element for which the polarization characteristic can be recovered without having to apply an electrical field in a direction opposite to that in which an electrical field is to be applied during driving. A piezoelectric element provided for a liquid discharge head of the present invention includes a field-polarization hysteresis characteristic that has, at the least, one hysteresis loop. A saturation polarization point and a critical polarization point, on one hysteresis loop for the hysteresis characteristic, are positioned in the same field polarity, and different signs are provided for a polarization value at the saturation polarization point and for the polarization value at the critical polarization point. | 10-02-2008 |
20080239017 | LIQUID EJECTING HEAD AND METHOD FOR MANUFACTURING THE SAME - A liquid ejecting head includes a flow channel substrate having a pressure generating chamber communicating with a nozzle aperture through which liquid is ejected, and a piezoelectric element disposed on one surface of the flow channel substrate. The piezoelectric element includes a common electrode, a piezoelectric layer, and an individual electrode. The piezoelectric layer is made of lead zirconate titanate having a rhombohedral or monoclinic crystal structure preferentially oriented in the (100) plane. The saturated polarization Pm and the residual polarization Pr of the piezoelectric layer satisfy the relationship 33%≦2Pr/2Pm≦46%. | 10-02-2008 |
20080246821 | Ink Jet Write Head - The invention relates to an ink jet write head which comprises a pressurized ink compartment ( | 10-09-2008 |
20080303875 | INK EJECTION NOZZLE WITH OSCILLATOR AND SHUTTER ARRANGEMENT - An ink ejection nozzle has an ink reservoir with an oscillator configured to oscillate ink pressure in the reservoir. A wafer assembly defines an ink supply channel in fluid communication with the ink reservoir. A nozzle chamber structure on the wafer assembly defines a nozzle chamber in fluid communication with the ink supply channel. An ink ejection port is in fluid communication with the nozzle chamber. A shutter is positioned in the nozzle chamber and is configured to shut the ink ejection port to the ejection of ink from the nozzle chamber. | 12-11-2008 |
20080316280 | Liquid discharging head, method of manufacturing liquid discharging head, and image forming apparatus - A liquid discharging head includes: a plurality of nozzles that discharge liquid droplets; and a plurality of piezoelectric elements that generate pressure for discharging liquid droplets from the respective nozzles, wherein the piezoelectric elements are performed with repolarization process to set non-uniformity of the droplet discharging characteristics of the nozzles to be in a predetermined range by combining adjustment of a polarization sensitivity and adjustment of a polarization voltage for each of the piezoelectric elements. | 12-25-2008 |
20090009563 | COMPOSITION FOR FERROELECTRIC THIN FILM FORMATION, FERROELECTRIC THIN FILM AND LIQUID-JET HEAD - A composition for ferroelectric thin film formation, comprising at least a colloidal solution containing metals serving as materials constituting a ferroelectric thin film, the colloidal solution having an average colloidal particle diameter of 1 to 100 nm, and obtaining a particle size distribution having two or more peaks; a ferroelectric thin film formed from the composition for ferroelectric thin film formation, and a liquid-jet head equipped with a piezoelectric element having the ferroelectric thin film. | 01-08-2009 |
20090046130 | Electrostatic Actuator And Fabrication Method - In one embodiment a method of making an electrostatic actuator includes: forming a first conductor over a first substrate to form a first structure; forming a flexible second conductor over a second substrate to form a second structure; forming an etch stop over the first conductor as part of the first structure or over the second conductor as part of the second structure; forming a spacer on the etch stop, the spacer selectively etchable with respect to the etch stop; etching the spacer through to the etch stop at a location of a gap between the first conductor and the second conductor; and bonding the first structure and the second structure together such that the first conductor is located opposite the second conductor across the gap. | 02-19-2009 |
20090051737 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - There is provided a liquid ejecting head including an piezoelectric element unit equipped with internal electrodes respectively constituting two poles are alternatively laminated to sandwich a piezoelectric material layer, the piezoelectric element unit having an external connecting portion connected to each of the internal electrodes of each pole on an outer surface of the piezoelectric element unit, and an external circuit board on which a driving IC for driving the piezoelectric element unit is provided and in which a connection wiring which is electrically connected to the piezoelectric element unit is provided. The external connecting portion of the piezoelectric element unit and the connection wiring of the wiring substrate are electrically connected via a connection layer made of an anisotropic conductive material. | 02-26-2009 |
20090058953 | PROCESS FOR FORMING A FERROELECTRIC FILM, FERROELECTRIC FILM, FERROELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS - A ferroelectric film containing a perovskite type oxide represented by Formula (P) is formed on a substrate, which stands facing a target, by a sputtering technique under conditions of a height of a shield, which surrounds an outer periphery of the target on the substrate side in a non-contact state and comprises shielding layers superposed one upon another at intervals, such that a difference between a plasma potential and a floating potential is at most 35V, and under conditions such that a temperature of the substrate is at least 400° C.: | 03-05-2009 |
20090058954 | PROCESS FOR FORMING A FERROELECTRIC FILM, FERROELECTRIC FILM, FERROELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS - A ferroelectric film containing a perovskite type oxide represented by Formula (P) is formed on a substrate, which stands facing a target according to the composition of the ferroelectric film, by a sputtering technique under conditions satisfying Formulas (1) and (2), or (3) and (4): | 03-05-2009 |
20090058955 | PROCESS FOR FORMING A FERROELECTRIC FILM, FERROELECTRIC FILM, FERROELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS - A ferroelectric film containing a perovskite type oxide that is represented by Formula (P) is formed on a substrate by a sputtering technique under conditions satisfying Formulas (1) and (2), or Formulas (3) and (4): | 03-05-2009 |
20090066763 | PIEZOELECTRIC DEVICE, INK-JET HEAD USING THE SAME, AND PROCESS FOR PRODUCING THE SAME - The piezoelectric device includes a substrate, a first electrode formed on the substrate, a piezoelectric film formed on the first electrode and a second electrode formed on a second side of the piezoelectric film which is away from a first side where the first electrode is formed. The first electrode is composed of a first layer in contact with the substrate and a second layer in contact with the piezoelectric film. The first layer is formed of a material that is wet etched at a different rate than the substrate. The in %-jet head includes the piezoelectric device, a liquid droplet storing/ejecting member for ejecting ink droplets through a ink spout and provided on the piezoelectric device and a diaphragm for vibrating in response to expansion or contraction of the piezoelectric device and provided between the piezoelectric device and the liquid droplet storing/ejecting member. | 03-12-2009 |
20090073241 | Inkjet head and manufacturing method of the same - A method of manufacturing an inkjet head that includes: forming in a first board an inlet, which penetrates the first board and through which ink may flow in, and a pressure chamber, which is formed as a recess in a surface of the first board; forming in a second board a manifold, which is to be connected with the inlet, a pressure absorbing space, which is positioned adjacent to the manifold and partitioned by a membrane, and an ink channel, which penetrates the second board and which is to be connected with the pressure chamber; forming in a third board a nozzle, which is to be connected with the ink channel; and stacking in order and attaching the first board, the second board, and the third board. This method can be utilized to simplify the manufacturing process and prevent crosstalk between pressure chambers, thereby providing a higher printing quality. | 03-19-2009 |
20090079799 | JETTING ERROR DETECTOR, DROPLET JETTING APPLICATOR AND DISPLAY DEVICE MANUFACTURING METHOD - A jetting error detector includes multiple input circuits configured to receive respective voltage values of multiple piezoelectric elements from a droplet jetting head configured to jet droplets through multiple nozzles by use of the multiple piezoelectric elements, a selection circuit configured to sequentially select one of the multiple input circuits, a judging unit configured to judge, based on the voltage value inputted to the selected input circuit, jetting quality of the nozzle for jetting the droplets by use of the piezoelectric element corresponding to the selected input circuit, and an output circuit configured to output a jetting quality judgment result of the nozzle. | 03-26-2009 |
20090079800 | ACTUATOR AND LIQUID-EJECTING HEAD - An actuator includes a piezoelectric element including a first electrode, a piezoelectric layer, and a second electrode and displaceably disposed above a substrate and a film covering side and top surfaces of the piezoelectric element. The rigidity of the film is 1% or less of that of the piezoelectric layer. | 03-26-2009 |
20090079801 | PIEZOELECTRIC INK JET MODULE WITH SEAL - A piezoelectric ink jet head that includes a polymer film, for example a flex print, located between the piezoelectric element and the reservoirs in the jet body. The film provides an efficient seal for the reservoirs and also positions the electrodes on the side of the piezoelectric element in which motion is effected, which can reduce the magnitude of the drive voltage. This location of the compliant flex print material also can enhance electrical and mechanical isolation between reservoirs, which improves jetting accuracy. The compliance of the polymer also reduces strain on the ink jet head. | 03-26-2009 |
20090085982 | Inkjet head and manufacturing method thereof - An inkjet head and a manufacturing method thereof are disclosed. A method of manufacturing an inkjet head, which is configured to eject ink through a nozzle using pressure provided to a pressure chamber, that includes: processing a board to form the pressure chamber and the nozzle; stacking a protective cover on a lower surface of the board, where a recess is formed in the protective cover in a portion corresponding to a position of the nozzle; coupling a piezoelectric component onto an upper surface of the board; and perforating the protective cover by removing the portion where the recess is formed, can be used to efficiently prevent the contamination of the nozzles, to improve the manufacturing yield of the inkjet head. | 04-02-2009 |
20090085983 | Inkjet printer - An inkjet printer includes a substantially closed ink duct in which ink is situated. The duct is operationally connected to a piezo-element,. The piezo-element is actuated with a number of actuation signals with appropriate waveforms, generated by a first and second signal generator in order to eject ink drops from the duct nozzle. A pressure wave is generated in the duct by an actuation pulse. The pressure wave causes a deformation of a piezo-element, which generates an electric signal as a result. The waveforms of the first and second signal may be different and do not have to be directly subsequent in time. | 04-02-2009 |
20090085984 | Liquid droplet discharge apparatus and liquid droplet discharge head - A piezoelectric actuator includes first active portion which correspond to a central portion of each of pressure chambers and a second active portion which correspond to a portion, of each of the pressure chambers, located on outer circumferential sides with respect to the central portion of the pressure chamber. The first active portion and the second active portion are deformed by applying the voltage to each of the first and second active portions. The first active portion is polarized in a direction parallel to the electric field generated in the first active portion, and the second active portion is polarized in a direction opposite to the electric field generated in the second active portion, thereby making it possible to suppress the crosstalk even when a high density arrangement of the pressure chambers is realized. | 04-02-2009 |
20090096842 | Liquid droplet jetting apparatus and method for manufacturing liquid droplet jetting apparatus - A liquid droplet jetting apparatus includes: a liquid droplet jetting head which jets liquid droplets when an actuator is driven; and a wiring member via which a drive signal is outputted to a surface electrode formed in the actuator. The wiring member includes a substrate, a wire provided on the substrate, and a covering member having an insulating property and covering the wire. The wire has an electrode land which is stacked on the surface electrode to be connected to the surface electrode, and the covering member has a first covering layer in which a first opening to expose the electrode land therein is formed and a second covering layer having a second opening communicating with the first opening and covering the first covering layer. The surface electrode and the electrode land are connected in a state that an electroconductive material is interposed therebetween through the first and second openings. | 04-16-2009 |
20090102894 | Piezoelectric actuator, liquid ejection head, and method for manufacturing piezoelectric actuator - A piezoelectric actuator includes piezoelectric layers. Individual electrodes are formed on an outermost piezoelectric layer and arranged in a row extending along a first direction. Through holes are formed in the outermost piezoelectric layer and arranged substantially in a row extending in the first direction to contact with first end portions of the individual electrodes. The individual electrodes include at least one first individual electrode and at least one second individual electrode. The first individual electrode comprises a first electrode terminal provided at the first end portion, and the second individual electrode comprises a second electrode terminal provided at a second end portion opposite to the first end portion with respect to a second direction perpendicular to the first direction. The second individual electrode has a thickened portion extending from the second electrode terminal towards the first end portion. | 04-23-2009 |
20090109262 | FLUID EJECTION DEVICE - A fluid ejection device includes a fluid chamber having a first sidewall and a second sidewall, a flexible membrane extended over the fluid chamber and supported at an end of the first sidewall and an end of the second sidewall, an actuator provided on the flexible membrane, a first gap provided between the flexible membrane and the end of the first sidewall, and a second gap provided between the flexible membrane and the end of the second sidewall, and compliant material provided within the first gap and within the second gap. As such, the actuator is adapted to deflect the flexible membrane relative to the fluid chamber. | 04-30-2009 |
20090109263 | Inkjet head, manufacturing method for the same, and inkjet recording apparatus - In order to provide an inkjet head easily manufactured while saving material costs and processing costs, and a manufacturing method for the same, an inkjet head comprises a first piezoelectric substrate which includes a plurality of first groove portions formed on one surface thereof and an ink supply path which is connected to the plurality of first groove portions and opens toward another surface thereof. A second piezoelectric substrate is bonded to the first piezoelectric substrate and includes a plurality of second groove portions forming ink chambers together with the plurality of first groove portions on a bonding surface between the first piezoelectric substrate and the second piezoelectric substrate. Drive electrodes are formed on side walls of the first groove portions and side walls of the second groove portions. | 04-30-2009 |
20090115820 | Inkjet recording apparatus - An inkjet recording apparatus includes: an ink holding chamber having a through hole to jet ink, and holding the ink; and a head unit jetting the ink held in the ink holding chamber from the through hole. The head unit includes an ultrasonic wave generation member, an ultrasonic wave focusing member focusing the ultrasonic waves generated at the ultrasonic wave generation member in a vicinity of the through hole, an ultrasonic wave propagation portion propagateting the ultrasonic waves leaving the ultrasonic wave focusing member, and a container portion containing the ultrasonic wave generation member, the ultrasonic wave focusing member, and the ultrasonic wave propagation portion. | 05-07-2009 |
20090115821 | METHOD OF DRIVING PIEZOELECTRIC ACTUATOR AND LIQUID EJECTION APPARATUS - A method of driving a piezoelectric actuator which is constituted of a lower electrode film, a piezoelectric film and an upper electrode film that are layered successively onto a diaphragm, includes the step of: applying an electric field to the piezoelectric film in a direction opposite to the orientation direction of the piezoelectric film while continuously changing an intensity of the electric field from a first electric field intensity to a second electric field intensity, the first electric field intensity being smaller than a coercive electric field of the piezoelectric film, the second electric field intensity being larger than the coercive electric field of the piezoelectric film. The piezoelectric film is oriented in the orientation direction from the lower electrode film toward the upper electrode film. | 05-07-2009 |
20090122118 | Printhead Module - A printhead module includes a printhead body, a nozzle plate and one or more piezoelectric actuators. The printhead body includes one or more pumping chambers, where each pumping chamber includes a receiving end to receive a printing liquid from a printing liquid supply and an ejecting end for ejecting the printing liquid from the pumping chamber. The nozzle plate includes one or more nozzles formed through the nozzle plate. Each nozzle can be in fluid communication with a pumping chamber and receive printing liquid from the ejecting end for ejection from the nozzle. The one or more piezoelectric actuators are connected to the nozzle plate. A piezoelectric actuator is positioned over each pumping chamber and includes a piezoelectric material configured to deflect and pressurize the pumping chamber, so as to eject printing liquid from a corresponding nozzle in fluid communication with the ejecting end of the pumping chamber. | 05-14-2009 |
20090128608 | PIEZOELECTRIC SUBSTANCE ELEMENT, PIEZOELECTRIC SUBSTANCE FILM MANUFACTURING METHOD, LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS - A piezoelectric substance element has a piezoelectric substance film and a pair of electrodes connected to the piezoelectric substance film on a substrate, and a main component of said piezoelectric substance film is Pb(Zr, Ti)O | 05-21-2009 |
20090141092 | PIEZOELECTRIC ACTUATOR - A piezoelectric actuator includes a vibration plate, a first piezoelectric layer formed on one surface of the vibration plate, a second piezoelectric layer stacked on a surface of the first piezoelectric layer, a plurality of individual electrodes arranged on a surface of the second piezoelectric layer in a predetermined direction, a first common electrode having a plurality of first electrodes formed between the first piezoelectric layer and the second piezoelectric layer, and which are arranged in the predetermined direction to face the individual electrodes respectively, and a first wire electrically connecting all of the first electrodes, and a second common electrode having a plurality of second electrodes formed between the vibration plate and the first piezoelectric layer, and which are arranged in the predetermined direction to face the individual electrodes respectively, and a second wire electrically connecting all of the second electrodes. | 06-04-2009 |
20090153625 | CAPACITOR, METHOD OF MANUFACTURING THE SAME, METHOD OF MANUFACTURING FERROELECTRIC MEMORY DEVICE, METHOD OF MANUFACTURING ACTUATOR, AND METHOD OF MANUFACTURING LIQUID JET HEAD - A method of manufacturing a capacitor, including: forming a lower electrode on a substrate; forming a dielectric film of a ferroelectric or a piezoelectric on the lower electrode; forming an upper electrode on the dielectric film; and forming a silicon oxide film so that at least the dielectric film is covered with the silicon oxide film, the silicon oxide film being formed by using trimethoxysilane. | 06-18-2009 |
20090160914 | PIEZOELECTRIC DEVICE, PROCESS FOR PRODUCING THE PIEZOELECTRIC DEVICE, AND INKJET RECORDING HEAD - A process for producing a piezoelectric device constituted by a first electrode, at least one second electrode, and a piezoelectric film sandwiched between the first electrode and the at least one second electrode so that an electric field can be applied to the piezoelectric film. First, a seed layer of a material containing at least one element is formed on a substrate, and then the first electrode is formed on the seed layer. Next, the at least one element is diffused through the first electrode so that the at least one element precipitates on a surface of the first electrode on the opposite side to the seed layer, and then the piezoelectric film is formed on the first electrode. | 06-25-2009 |
20090167821 | Liquid Droplet Jetting Head - A plurality of pressure chambers are divided into a first pressure chamber group and a second pressure chamber group, and are arranged such that an interval of the first pressure chamber group and the second pressure chamber group is larger than an interval between nozzles, and sub ink supply passage which supplies the ink to the common liquid chambers through the space is formed. Accordingly, a liquid droplet jetting head which is capable of delivering the ink to all the nozzles without increasing a size is provided. | 07-02-2009 |
20090174754 | INSULATING TARGET MATERIAL, METHOD OF MANUFACTURING INSULATING TARGET MATERIAL, CONDUCTIVE COMPLEX OXIDE FILM, AND DEVICE - An insulating target material for obtaining a conductive complex oxide film represented by a general formula ABO | 07-09-2009 |
20090185010 | Inkjet head chip, driving method for inkjet head chip, inkjet head, and inkjet recording apparatus - To achieve a uniform ink discharge speed, there is provided an head chip including a plurality of channels partitioned with piezoelectric elements and formed parallel to each other, in which: the channels include a discharge channel disposed in a middle portion of the channels in a channel parallel direction and a dummy channel disposed in each of both end portions of the channels in the channel parallel direction; the discharge channel communicates with an ink chamber via an ink introduction hole and with the nozzle hole; one of discharge of the ink droplet from the dummy channel toward the recording medium and supply of the ink from the ink chamber to the dummy channel is interrupted; and one of the piezoelectric elements which is adjacent to the discharge channel, and one of the piezoelectric elements which is adjacent to the dummy channel are each applied with a voltage. | 07-23-2009 |
20090185011 | LIQUID JET HEAD AND A LIQUID JET APPARATUS - In a passage forming substrate | 07-23-2009 |
20090189957 | DRIVING CIRCUIT FOR CAPACITIVE LOAD AND FLUID INJECTING DEVICE - A driving circuit that drives a capacitive load includes a drive signal generator that generates a drive signal that drives the capacitive load via a transistor pair in response to an analog signal. A power-source voltage generator generates high-voltage and low-voltage power-source voltages and supplies the power-source voltages to collectors of the transistors via a high-voltage output terminal and a low-voltage output terminal. The power-source voltage generator includes multiple power sources connected in parallel and a switch unit that connects the adjacent power sources in series each time the drive signal rises above or falls below a predetermined threshold value. The driving circuit further includes a voltage controlling capacitor connected to the low-voltage output terminal of the power source, and a power recovery unit having a switch unit that recovers a charge accumulated in the voltage controlling capacitor back to the power source via the high-voltage output terminal. | 07-30-2009 |
20090195622 | LIQUID EJECTING HEAD AND LIQUID EJECTING DEVICE - A liquid ejecting head includes a reservoir forming substrate provided with a reservoir serving as a common liquid chamber; in which at least a portion of a wall surface of the reservoir is an inclined surface, a lower side of the reservoir in a vertical direction is provided with a lower portion of which a width is wider than an upper portion of the reservoir in the vertical direction thanks to the inclined surface, a compliance portion which absorbs pressure of the reservoir is disposed at an area which faces the lower portion and has a shape corresponding to the lower portion, and the reservoir communicates with an upper portion of each of the pressure generating chambers in the vertical direction rather than a lower portion of each of pressure generating chambers. | 08-06-2009 |
20090201344 | DEVICE AND METHOD FOR DELIVERING A FLUID IN FORM OF A HIGH-SPEED MICRO-JET - The present invention relates to a device and method for delivering a fluid in the form of a high-speed micro-jet. In order to provide a small and low-cost device for delivering a fluid in the form of a high-speed micro-jet, a device ( | 08-13-2009 |
20090201345 | Liquid droplet ejection head - Disclose is a liquid droplet ejection head comprising;
| 08-13-2009 |
20090207211 | LIQUID JET HEAD AND A LIQUID JET APPARATUS - A liquid jet head includes: a pressure generation chamber | 08-20-2009 |
20090207212 | LIQUID EJECTION HEAD AND MANUFACTURING METHOD THEREOF - A liquid ejection head includes a flow channel-forming substrate having a plurality of pressure-generating chambers communicated with nozzles configured to eject droplets, the plurality of pressure-generating chambers being arranged in parallel with each other; a plurality of pressure-applying units configured to apply pressure to interiors of the pressure-generating chambers; and a joining substrate joined onto one surface of the flow channel-forming substrate. The flow channel-forming substrate includes a silicon single crystal substrate having a ( | 08-20-2009 |
20090219345 | METHOD OF MANUFACTURING A LIQUID JET HEAD AND A LIQUID JET APPARATUS - A method of manufacturing a liquid jet head includes depositing a lower electrode film on a passage forming substrate and patterning the lower electrode film into a predetermined pattern, forming a piezoelectric layer on the passage forming substrate, forming an intermediate film made of a conductive material on the piezoelectric layer, forming a protective film on the intermediate film and, using the protective film as a mask, patterning by etching the piezoelectric layer together with the intermediate film into a predetermined pattern, peeling off the protective film, and depositing an upper electrode film on the passage forming substrate and patterning the upper electrode film into a predetermined pattern. | 09-03-2009 |
20090219346 | LIQUID DROPLET DISCHARGE HEAD AND LIQUID DROPLET DISCHARGE APPARATUS - A piezoelectric actuator includes upper and lower constant electric potential electrodes. The upper constant electric potential electrodes are connected to a first-common conducting section extending in a predetermined direction, both ends of the first-common conducting section are connected to second-common conducting sections, and thus a first electrode assembly is formed. Both ends of the lower constant electric potential electrodes extending in the predetermined direction are connected to third-common conducting sections, and thus a second electrode assembly is constructed. A flexible wiring board stacked on the piezoelectric actuator has a first-connecting land extending in the predetermined direction and to which one of the first and second electrode assemblies having a smaller voltage drop when a predetermined current is applied is connected, and second-connecting lands to which the other is connected and which are arranged on both end sides of the first-connecting land. | 09-03-2009 |
20090237464 | LIQUID INJECTING HEAD, METHOD OF MANUFACTURING LIQUID INJECTING HEAD, AND LIQUID INJECTING DEVICE - A liquid injecting head includes a flow path forming substrate in which a pressure generating chamber communicated with a nozzle opening that injects liquid is formed, a pressure generating element that is formed so as to apply pressure to the pressure generating chamber for injecting the liquid, a lead electrode that is connected to the pressure generating element, a wiring substrate having flexibility that is connected to the lead electrode, and a support member that is bonded to the wiring substrate. A fixing opening formed by perforating the wiring substrate in the thickness direction is disposed, and the wiring substrate and the support member are bonded together through an adhesive agent disposed inside the fixing opening. | 09-24-2009 |
20090237465 | LIQUID JET HEAD, A LIQUID JET APPARATUS AND A PIEZOELECTRIC ELEMENT - A piezoelectric layer held between a first electrode on a substrate side and a second electrode formed on a surface of the piezoelectric layer facing away from the first electrode is formed of a ferroelectric material with a perovskite crystal structure, and the ratio of the surface roughness of the piezoelectric layer to the surface roughness of the first electrode falls within the range of 0.58 to 1.60. | 09-24-2009 |
20090237466 | INKJET RECORDING HEAD AND INKJET RECORDING DEVICE - The present invention provides an inkjet recording head and inkjet recording device which can eject a high viscosity ink at ordinary temperature. The inkjet recording head has a nozzle portion ejecting an ink drop; an ink flow path member including the nozzle portion; and a driving section moving the ink flow path member in an ink drop ejecting direction and an opposite direction. The driving section moves the ink flow path member in the ink drop ejecting direction, and applies inertia in the ejecting direction to internal ink by one of suddenly stopping the ink flow path member and moving the ink flow path member in the opposite direction, and makes the ink drop be ejected from the nozzle portion. | 09-24-2009 |
20090237467 | METHOD OF MANUFACTURING A LIGHT EMITTING DEVICE - A technique capable of efficient, high speed processing for the formation of an organic compound layer by using an ink jet method is provided. In the method of forming an organic compound layer by using the ink jet method, a composition containing an organic compound having light emitting characteristics is discharged from an ink head, forming a continuous organic compound layer. The organic compound layer is formed on pixel electrodes aligned in a matrix shape, and is formed in a continuous manner over a plurality of pixel electrodes. A light emitting device is manufactured using organic light emitting elements in accordance with this manufacturing method. | 09-24-2009 |
20090244200 | LIQUID DISCHARGING METHOD, LIQUID DISCHARGING HEAD, AND LIQUID DISCHARGING APPARATUS - A liquid discharging method includes applying pressure to liquid and discharging the liquid from a liquid discharging head. The viscosity of the liquid ranges from 8 to 20 millipascal seconds. The liquid discharging head includes a nozzle that discharges the liquid, a pressure chamber that causes a pressure change in the liquid so as to discharge the liquid from the nozzle, and a liquid supplying section that is in communication with, and supplies the liquid to, the pressure chamber. The pattern of the pressure change in the liquid varies to selectively control the amount of the liquid discharged from the nozzle between a predetermined amount and another smaller amount. The diameter of the nozzle ranges from 15 μm to 40 μm. The flow-channel length of the nozzle is set at a value that is smaller than the flow-channel length of the liquid supplying section multiplied by 0.2. | 10-01-2009 |
20090244201 | METHOD OF MANUFACTURING LIQUID JET HEAD, A METHOD OF MANUFACTURING A PIEZOELECTRIC ELEMENT AND A LIQUID JET APPARATUS - In a method of manufacturing a piezoelectric element which includes a first electrode, a piezoelectric layer including a plurality of piezoelectric films, and a second electrode formed opposite a surface of the piezoelectric layer, a step of forming the first electrode metal layer includes forming the first electrode metal layer so as to include one or more iridium layer and permit the iridium layer to have the total thickness in the range from 2 to 5 nm to form the first electrode metal layer; and forming the first electrode film by heating the piezoelectric film at a temperature in the range from 400 to 650° C. for 30 minutes or more after the first piezoelectric film is formed in the step of forming the piezoelectric layer to oxidize the iridium contained in the first electrode metal layer. | 10-01-2009 |
20090244202 | INK JET HEAD MANUFACTURING DEVICE, INK JET HEAD MANUFACTURING METHOD, AND INK JET DEVICE - In an ink jet head manufacturing device, first and second diodes are arranged on a path extending from a gate of a control unit to an individual electrode of an ink-pressure control part in an ink jet head, the first diode allowing a current from the individual electrode of the ink-pressure control part to flow into a first wiring, and the second diode allowing a current from a second wiring to flow into the individual electrode of the ink-pressure control part. A short-circuit unit is arranged to short-circuit the first wiring and the second wiring when depolarization or polarization of the ink-pressure control part is performed. | 10-01-2009 |
20090244203 | METHOD OF MANUFACTURING PIEZOELECTRIC ACTUATOR, AND LIQUID EJECTION HEAD - The method of manufacturing a piezoelectric actuator, includes the steps of: forming a lower electrode film on an insulating substrate; forming a piezoelectric film on the lower electrode film; forming a slit on the piezoelectric film to expose a portion of the lower electrode film on an upper surface side of the piezoelectric film; forming an insulating layer which covers a portion of the piezoelectric film; forming an upper electrode film so as to span the insulating layer and the piezoelectric film; forming, on the piezoelectric film, a lower wire in connection with the portion of the lower electrode film exposed through the slit; depositing a first metal film on the lower wire and thereby making a film thickness of the lower wire greater than a film thickness of the lower electrode film; and depositing a second metal film on a portion of the upper electrode film on the insulating layer and thereby making a film thickness of the portion of the upper electrode film on the insulating layer greater than a film thickness of a portion of the upper electrode film that has been deposited directly on the piezoelectric film. | 10-01-2009 |
20090244204 | LIQUID DROPLET JETTING APPARATUS AND LIQUID DROPLET JETTING HEAD - A piezoelectric actuator includes piezoelectric material layers, individual electrodes corresponding to pressure chambers, a first common constant electric potential electrode corresponding to outer peripheral portions of the pressure chambers, and a second common constant electric potential electrode corresponding to central portions of the individual electrodes. A plurality of first active portions is formed in areas of the piezoelectric material layers sandwiched between the individual electrodes and the second common constant electric potential electrode, and a plurality of second active portions is formed in areas of the piezoelectric material layers sandwiched between the individual electrodes and the first common constant electric potential electrode. Since the second common constant electric potential electrode has a mesh-shaped form, it is possible to reduce an impedance thereof. | 10-01-2009 |
20090244205 | PIEZOELECTRIC ACTUATOR, LIQUID TRANSPORTING APPARATUS, AND METHOD FOR MANUFACTURING PIEZOELECTRIC ACTUATOR - A piezoelectric actuator includes a first piezoelectric layer, a second piezoelectric layer stacked on the first piezoelectric layer, a first electrode arranged on the first piezoelectric layer, a second electrode arranged between the first and second piezoelectric layers, and a third electrode arranged on the second piezoelectric layer. A portion of the third electrode faces the second electrode, and another portion of the third electrode faces the first electrode. The first electrode does not face at least a portion of the second electrode. A portion, of the second piezoelectric layer, sandwiched between the second electrode and the third electrode is polarized in a first direction in a thickness direction thereof, and portions, of the first and the second piezoelectric layers, which are sandwiched between the first electrode and the third electrode and between which the second electrode is not arranged, are polarized in a direction opposite to the first direction. | 10-01-2009 |
20090244206 | PIEZOELECTRIC ELEMENT AND ITS MANUFACTURING METHOD, PIEZOELECTRIC ACTUATOR, AND LIQUID JET HEAD - A piezoelectric element includes: a substrate; a lower electrode formed above the substrate; a piezoelectric layer formed above the lower electrode; and an upper electrode formed above and at least in a portion of the piezoelectric layer, wherein the piezoelectric layer has a first portion formed between the lower electrode and the upper electrode and a second portion formed outside and continuous with the first portion, the second portion covering at least a portion of the lower electrode, and having a film thickness that is thinner than a film thickness of the first portion. | 10-01-2009 |
20090262168 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a flow path substrate that has an array of pressure generating chambers communicating with nozzle openings, respectively, piezoelectric elements arranged in a region corresponding to the pressure generating chambers, a driver IC driving the piezoelectric elements, an array of individual lead electrodes extending in the same direction from individual electrodes of the piezoelectric elements, connection portions, disposed in the respective individual lead electrodes, for electrical connection to the driver IC, and inspection regions arranged in the individual lead electrodes. | 10-22-2009 |
20090267998 | PIEZOELECTRIC DEVICE, METHOD OF ACTUATING THE SAME, PIEZOELECTRIC APPARATUS, AND LIQUID DISCHARGE APPARATUS - A piezoelectric device comprises a piezoelectric body and electrodes for applying an electric field in a predetermined direction across the piezoelectric body. The piezoelectric body contains an inorganic compound polycrystal, which contains first ferroelectric substance crystals having orientational characteristics at the time free from electric field application and has characteristics such that, with application of at least a predetermined electric field E | 10-29-2009 |
20090273651 | LIQUID JET HEAD AND A PIEZOELECTRIC ELEMENT - A liquid jet head has a channel-forming substrate composed of a crystal substrate having a pressure-generating chamber linked to a nozzle opening as well as a piezoelectric element composed of a lower electrode, a piezoelectric layer, and an upper electrode and formed on the channel-forming substrate so that the pressure in the pressure-generating chamber can be changed, with the piezoelectric layer having a thickness equal to or smaller than 5 μm, made of a perovskite-type crystal, and formed so that the interval between the X-ray diffraction peak position derived from the (220) plane of the channel-forming substrate and the X-ray diffraction peak position derived from the (111) plane of the piezoelectric layer falls within the range 2θ=9.059±0.1°. | 11-05-2009 |
20090273652 | LIQUID JET HEAD AND A PIEZOELECTRIC ELEMENT - A liquid jet head includes a passage-forming substrate composed of a crystal substrate provided with pressure-generating chambers communicating with nozzle orifices and piezoelectric elements disposed on the passage-forming substrate and each composed of a lower electrode, a piezoelectric material layer, and an upper electrode to cause a change of pressure in the pressure-generating chamber. The piezoelectric material layer has a thickness of 5 μm or less and is made of a perovskite-type crystal and is configured such that the distance between an X-ray diffraction peak position derived from the (220) plane of the passage-forming substrate and an X-ray diffraction peak position derived from the (110) plane of the piezoelectric material layer is within a range of 2θ=16.262±0.1 degrees. | 11-05-2009 |
20090284568 | LIQUID JET HEAD AND A LIQUID JET APPARATUS - A lower electrode | 11-19-2009 |
20090284569 | INKJET HEAD - In a harmonica type head chip having a plurality of rows of channels (row A and row B), connection electrodes for row A and the connection electrodes for row B formed on the back surface of the head chip are connected to a multilayer member having an insulating layer on one surface of which are formed the lead wirings for row A and on the other surface of which are formed the lead wirings for row B, and the lead wirings for row B are made to protrude outwards more than the lead wirings for row A and drive interconnections are electrically connected to the lead wirings for row A and the lead wirings for row B. | 11-19-2009 |
20090289998 | PIEZOELECTRIC ACTUATOR, LIQUID-DROP EJECTING HEAD, AND LIQUID-DROP EJECTING APPARATUS - A liquid drop ejecting head for ejecting liquid drops from nozzles communicating with liquid chambers includes a piezoelectric actuator including a diaphragm whose ends are fixed in a short-side direction of the diaphragm and an active element mounted on the diaphragm. The active element is contractible and extendable by a supply of a voltage to displace the diaphragm in an out-of-plane direction. The diaphragm is displaced with curvature so as to have a plurality of inflection points in the short-side direction. The active element is disposed in at least one area of an area from each of the ends of the diaphragm to a proximal inflection point of the inflection points and an area from one inflection point to another neighboring inflection point of the inflection points in a cross-section in the short-side direction of the diaphragm. | 11-26-2009 |
20090303294 | ACOUSTIC INK JET PRINTER - In an acoustic ink jet printer, a configuration is such that an ink unit | 12-10-2009 |
20090315957 | Head chip, liquid jet head, liquid jet recording device, and method of manufacturing the head chip - Provided is a head chip ( | 12-24-2009 |
20100007704 | DRIVING DEVICE FOR CAPACITANCE TYPE ACTUATOR AND DRIVING DEVICE FOR INK JET HEAD - An actuator is sequentially charged with output voltage “E/2” of a voltage source and output voltage “E” of a voltage source. After the charging, “Q/2” of electric charge “Q” stored in the actuator is discharged on a path returning to the voltage source. Subsequent to the discharging, the remaining all electric charge “Q/2” stored in the actuator is discharged on a closed circuit. | 01-14-2010 |
20100020131 | LIQUID EJECTION HEAD AND LIQUID EJECTION DEVICE - A liquid ejection head which can fly a minute high viscosity droplet with high precision by a low drive voltage in electric field assist system which exhibiting excellent maintainability such as cleaning. The liquid ejection head ( | 01-28-2010 |
20100039480 | Liquid Projection Apparatus - Vista RLCT - A device for projecting liquid as jets or droplets from multiple nozzles, the device comprising: | 02-18-2010 |
20100039481 | Film depositing apparatus, a film depositing method, a piezoelectric film, and a liquid ejecting apparatus - A film depositing apparatus comprises: a process chamber; a target holder provided in the process chamber for holding a target; a substrate holder for supporting a deposition substrate such that the deposition substrate faces the target holder in the process chamber; a power supply for supplying electric power between the target holder and the substrate holder to generate plasma in the process chamber; and an anode provided between the target holder and the substrate holder for capturing ions and/or electrons in the plasma being generated within the process chamber, wherein the anode includes: a cylindrical member provided so as to surround an outer periphery of a side of the substrate holder that faces the target holder; and at least one annular plate member attached to an inside wall of the cylindrical member, the plate member having a central opening larger than a surface of the deposition substrate. | 02-18-2010 |
20100039482 | MULTILAYER BODY, PIEZOELECTRIC ELEMENT, AND LIQUID EJECTING DEVICE - A multilayer body which includes a low-resistance metal layer having a low electrical resistance, excellent thermal resistance and low surface irregularity is provided. The multilayer body includes a substrate, and a low-resistance metal layer which is formed on the substrate and has a single-layer structure or a multilayer structure of two or more sublayers. The low-resistance metal layer includes a gold-containing layer or sublayer composed of gold and another metal. | 02-18-2010 |
20100045752 | Advanced High Performance Horizontal Piezoelectric Hybrid Synthetic Jet Actuator - The present invention comprises a high performance, horizontal, zero-net mass-flux, synthetic jet actuator for active control of viscous, separated flow on subsonic and supersonic vehicles. The present invention is a horizontal piezoelectric hybrid zero-net mass-flux actuator, in which all the walls of the chamber are electrically controlled synergistically to reduce or enlarge the volume of the synthetic jet actuator chamber in three dimensions simultaneously and to reduce or enlarge the diameter of orifice of the synthetic jet actuator simultaneously with the reduction or enlargement of the volume of the chamber. The present invention is capable of installation in the wing surface as well as embedding in the wetted surfaces of a supersonic inlet. The jet velocity and mass flow rate for the SJA-H will be several times higher than conventional piezoelectric actuators. | 02-25-2010 |
20100066788 | PEROVSKITE-TYPE OXIDE FILM, PIEZOELECTRIC THIN-FILM DEVICE AND LIQUID EJECTING DEVICE USING PEROVSKITE-TYPE OXIDE FILM, AS WELL AS PRODUCTION PROCESS AND EVALUATION METHOD FOR PEROVSKITE-TYPE OXIDE FILM - Provided is a perovskite-type oxide film having a perovskite-type crystal structure and containing lead as a chief component, which, when subjected to Raman microspectroscopy at a plurality of points on a surface thereof so as to measure Raman spectra upon application of an electric field of 100 kV/cm and upon application of no electric field, has a mean of absolute values of peak shift amounts that is 2.2 cm | 03-18-2010 |
20100079552 | PIEZOELECTRIC FILM AND METHOD FOR MANUFACTURING THE SAME, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS - A piezoelectric film of a perovskite oxide represented by a general expression (P) below and has a pyrochlore free single phase perovskite structure with a/b≦1.06. | 04-01-2010 |
20100079553 | LIQUID EJECTION HEAD DRIVE CIRCUIT, LIQUID EJECTION APPARATUS, AND METHOD OF PROTECTING LIQUID EJECTION HEAD DRIVE CIRCUIT - The liquid ejection head drive circuit includes: a drive voltage application device which applies drive voltage between a drive electrode and a common electrode of a piezoelectric element arranged in a liquid ejection head; a detection device which detects a current flowing in a common line which is electrically connected to the common electrode; an abnormal insulation determination device which determines a status of abnormal insulation of the piezoelectric element according to a detection result of the detection device; and a current limitation device which limits the current flowing in the common line within a prescribed range where the abnormal insulation determination device is enabled to determine the status of abnormal insulation, when the current flowing in the common line exceeds a reference value which is determined so that at least one of the detection device and the drive voltage application device is prevented from being overloaded. | 04-01-2010 |
20100079554 | METHOD OF MANUFACTURING PIEZOELECTRIC ACTUATOR, LIQUID EJECTION HEAD, AND IMAGE FORMING APPARATUS - A method of manufacturing a piezoelectric actuator which includes a piezoelectric device constituted of a lower electrode, a piezoelectric body and an upper electrode arranged on a diaphragm, the method includes: a polishing step of polishing the piezoelectric body; and a first heating step of heating the piezoelectric body to a temperature which is not lower than a Curie point of the piezoelectric body and performing re-polarization of the piezoelectric body having been polished in the polishing step. | 04-01-2010 |
20100079555 | LEAD-CONTAINING PEROVSKITE-TYPE OXIDE FILM AND METHOD OF PRODUCING THE SAME, PIEZOELECTRIC DEVICE USING A LEAD-CONTAINING PEROVSKITE-TYPE OXIDE FILM, AS WELL AS LIQUID EJECTING APPARATUS USING A PIEZOELECTRIC DEVICE - Provided is a lead-containing perovskite-type oxide film having principally (100) and/or (001) orientation and containing lead as a chief component, which is over 2 μm thick and exhibits such hysteresis characteristics that two coercive fields are both positive. A method of producing such an oxide film, a piezoelectric device including such an oxide film, and a liquid ejecting apparatus provided with such a piezoelectric device are also provided. | 04-01-2010 |
20100091073 | PIEZOELCTRIC ACTUATOR, METHOD OF MANUFACTURING SAME, AND LIQUID EJECTION HEAD - The piezoelectric actuator comprises: a supporting substrate; a thermal stress controlling layer which is formed on the supporting substrate; and a piezoelectric body which is formed as a film onto the thermal stress controlling layer on the supporting substrate at a higher temperature than room temperature, wherein the thermal stress controlling layer reduces a film stress induced by formation of the piezoelectric body. | 04-15-2010 |
20100097431 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element includes a substrate, a lower electrode formed above the substrate, a piezoelectric layer formed above the lower electrode, an upper electrode formed above the piezoelectric layer, a protection layer formed on the lateral sides of the piezoelectric layer, and a self-organized monomolecular film formed on the side of each of the protection layer not facing the piezoelectric layer. | 04-22-2010 |
20100103224 | TRANSDUCER INTERCONNECT WITH CONDUCTIVE FILMS - An electronic device has an electronic signal source electrically connected to a signal routing circuit, an electrically activated transducer to receive electronic signals through the signal routing circuit, and an anisotropic conductive film to provide electrical continuity between the signal routing circuit and the transducer, the anisotropic conductive film having material removed adjacent the transducer to reduce mechanical loading of the transducer. A print head has a jet stack including an aperture plate having apertures arranged to allow passage of ink stored in the jet stack, a diaphragm arranged adjacent the jet stack so as to apply pressure on the ink stored in the jet stack, a transducer arranged to cause the diaphragm to deflect when activated, an anisotropic conductive film having material removed adjacent the transducer to reduce mechanical loading of the transducer, and an electrical interconnect formed from the anisotropic conductive film arranged to electrically couple the transducer to a signal routing circuit. A method includes patterning an anisotropic conductive film to form an array of openings or recesses, bonding the patterned anisotropic conductive film to a transducer side of a transducer array such that openings or recesses in the anisotropic conducting film are arranged adjacent each transducer so as to not contact the transducer in the region of maximum deflection, and bonding a signal carrying circuit array to a circuit side of the transducer array using the patterned anisotropic conductive film. | 04-29-2010 |
20100103225 | INKJET HEAD - An inkjet head is disclosed. The inkjet head can include a nozzle, configured to discharge ink; a chamber, configured to supply the ink to the nozzle; and a piezoelectric element, configured to receive electricity from an external power source and press the chamber, being made of a material having xPb(Mg | 04-29-2010 |
20100103226 | PEROVSKITE OXIDE, PROCESS FOR PRODUCING THE SAME, PIEZOELECTRIC FILM, AND PIEZOELECTRIC DEVICE - A process for producing a perovskite oxide having a composition expressed by the compositional formulas A(B, C)O | 04-29-2010 |
20100134568 | MEMS Device with Uniform Membrane - A MEMS based device is described with recesses covered by a membrane. The membranes over the recesses are highly uniform due to being formed by a stack of layers that are epitaxial layers with high uniformity. The unnecessary layers of the stack, such as the handle layer, are removed prior to completion of the device to achieve a membrane with a desired thickness. | 06-03-2010 |
20100141712 | INK-JET HEAD AND MANUFACTURING METHOD THEREOF - Disclosed are an ink-jet head and a method of manufacturing the ink-jet head including a plurality of chambers, a membrane covering the plurality of chambers, and a plurality of actuators separated from one another by a virtual dividing line on the membrane such that pressure is applied to each of the plurality of chambers. The method in accordance with an embodiment of the present invention includes: forming a groove at a position on one surface of the membrane, the position corresponding to the position of the dividing line; bonding a piezoelectric member to the one surface of the membrane having the groove formed therein by using adhesive resin; and dividing the piezoelectric member such that the groove is exposed. | 06-10-2010 |
20100141713 | Short Circuit Protection for Inkjet Printhead - Systems and apparatus for ejecting fluid. A fluid injection apparatus includes a fluid ejector unit for ejecting a droplet of fluid, an integrated circuit, and a conductive trace electrically coupling the fluid ejector unit and the integrated circuit. A portion of the conductive trace includes a fuse. | 06-10-2010 |
20100149283 | INK-JET RECORDING HEAD, RECORDING ELEMENT SUBSTRATE, METHOD FOR MANUFACTURING INK-JET RECORDING HEAD, AND METHOD FOR MANUFACTURING RECORDING ELEMENT SUBSTRATE - An ink-jet recording head includes a plurality of recording element substrates each having an ejection pressure generating element configured to generate pressure for ejecting ink from an ink discharge port. The plurality of recording element substrates each include a first surface on which the corresponding ejection pressure generating element is disposed and a second surface, serving as an end surface intersecting with the first surface, being at least partially formed by etching. | 06-17-2010 |
20100156997 | DROP GENERATING APPARATUS - A drop generator having a via structure configured for electrical and fluidic interconnection. The via structure includes an electrically conductive layer and an electrically insulating layer disposed on the electrically conductive layer. | 06-24-2010 |
20100156998 | METHOD AND APPARATUS FOR PRINTING - Methods and apparatus for printing are described. A first mode of printing includes actuating a set of two or more actuators configured to drive printing fluid ejection from a corresponding set of two or more nozzles. In response to a drive signal, each actuator pressurizes a corresponding pumping chamber and ejects a printing fluid from a nozzle in fluid communication with the pumping chamber. The printing fluid ejected from the set of two or more nozzles represents a single pixel of an image being printed. A second mode of printing is in response to determining that a nozzle in the set of nozzles is operating defectively, and includes adjusting the one or more drive signals to the one or more remaining nozzles in the set such that the volume of printing fluid ejected from the remaining nozzles compensates for a lack of printing fluid ejected from the defective nozzle. | 06-24-2010 |
20100156999 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head including a first base member in which a plurality of pressure generating chambers communicating with nozzle openings and a series of partition walls are arranged in parallel, a second base member disposed on the first base member, a reservoir serving as a common liquid chamber for the pressure generating chambers, and an adhesive agent adhered to a first angular portion formed in an end portion of the partition walls near the reservoir which is adjacent to the second base member. | 06-24-2010 |
20100165057 | PIEZOELECTRIC ACTUATOR AND LIQUID TRANSFER DEVICE - A vibration plate, an insulating layer and a plurality of piezoelectric layers, connected to each other, are connected to an upper face of a flow passage unit. Between the plurality of piezoelectric layers, there is provided an intermediate electrode having; opposing portions opposed to center portions of pressure chambers; and connecting portions for connecting the opposing portions at a region opposed to connection portion with the flow passage unit. Between the insulating layer and one of the piezoelectric layers, there is provided a lower electrode extending across the entire region not opposed to the intermediate electrode, including regions opposed to regions of the pressure chambers located outside the center portions thereof. At an upper face of the other piezoelectric layer, upper electrodes are located to be opposed to the pressure chambers. A shielding electrode is arranged between the vibration plate and the insulating layer across the entire regions thereof. | 07-01-2010 |
20100171796 | METHOD OF STIRRING LIQUID IN DROPLET DISCHARGE HEAD AND DROPLET DISCHARGE APPARATUS - In a method of stirring liquid in a droplet discharge head in which droplets of the liquid are discharged from a plurality of nozzle openings by driving piezoelectric elements provided to each of the nozzle openings, drive conditions of the piezoelectric elements are varied and the liquid that corresponds to the piezoelectric elements is caused to flow at different pressures. | 07-08-2010 |
20100177146 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head including a pressure generating chamber which is in communicating with a nozzle orifice, a piezoelectric element having an active portion which is supplied a drive signal and an inactive portion which is not supplied the drive signal, and a film wiring substrate including an active wiring layer which is electrically connected to an individual connecting terminal of the active portion and an inactive wiring layer which is electrically connected to an individual connecting terminal of the inactive portion. | 07-15-2010 |
20100182381 | INK-JET HEAD - An ink-jet head is disclosed. The ink-jet head can include: a channel for holding ink, a nozzle connected with the channel, a pressurizing unit configured to apply pressure to the ink so as to eject the ink, a partition coupled to one side of the channel so as to block the channel, and an actuator configured to deform one side of the channel so as to open the channel. While pressure is applied to the ink, this pressure can be turned on and off, to provide pressure pulses for ejecting the ink. As such, with this arrangement, the ejection properties of the ink-jet head can be adjusted to various settings. | 07-22-2010 |
20100182382 | INKJET HEAD MODULE AND METHOD OF ALIGNING INKJET HEAD USING THE SAME - An inkjet head module and a method of aligning inkjet heads using the inkjet head module are disclosed. The inkjet head module can include a frame, which can be attached to and detached from an inkjet apparatus; a multiple number of heads, which may be coupled to the frame, and which may each have at least one nozzle formed for ejecting ink; a multiple number of support racks, each of which may be interposed between the frame and a head, and which may support the head such that the head is movable in relation to the frame; and a multiple number of piezoelectric motors, which may move the heads to align the heads in relation to one another. Certain embodiments of the invention make it possible to reduce the size of the overall inkjet apparatus, as well as to align a multiple number of inkjet heads with higher precision. | 07-22-2010 |
20100194824 | PIEZOELECTRIC MATERIAL, METHOD FOR PRODUCING PIEZOELECTRIC MATERIAL, PIEZOELECTRIC DEVICE AND LIQUID DISCHARGE DEVICE - A piezoelectric material of the invention includes a perovskite oxide (P) (which may contain inevitable impurities) represented by the formula below: | 08-05-2010 |
20100208004 | Ring Electrode for Fluid Ejection - Methods, systems, and apparatus for drive a pumping chamber of a fluid ejection system are disclosed. In one implementation, the actuator for drive the pumping chamber includes a continuous piezoelectric layer between a pair of drive electrodes and a continuous reference electrode. The pair of drive electrodes includes an inner electrode and an outer electrode surrounding the inner electrode. The actuator is further coupled to a controller which, during a fluid ejection cycle, applies a negative voltage pulse differential to the outer electrode to expand the pumping chamber for a first time period, then applies another negative voltage pulse differential to the inner electrode during a second time period after the first time period to contract the pumping chamber to eject a fluid drop. | 08-19-2010 |
20100208005 | FILM FORMATION METHOD, FILM FORMATION DEVICE, PIEZOELECTRIC FILM, PIEZOELECTRIC DEVICE AND LIQUID DISCHARGE DEVICE - When a film containing constituent elements of a target is formed on a substrate through a vapor deposition process using plasma with placing the substrate and the target to face to each other, the film is formed with surrounding the substrate with a wall surface having the constituent elements of the target adhering thereto, and applying a physical treatment to the wall surface to cause the components adhering to the wall surface to be released into the film formation atmosphere. | 08-19-2010 |
20100208006 | PRINTING BIO-REACTIVE MATERIALS - A method for printing one or more desired features on a polymeric substrate. In an example embodiment, the method includes receiving an ink that includes a bio-reactive indicator material, and employing a piezoelectric printhead to deposit the ink on a polymeric substrate. The polymer substrate with the ink deposited thereon represents a diagnostic testing device for performing a test on a material sample. The method further includes employing UltraViolet (UV) light to cure the ink. The ink may include an electrically conductive material. A UV light source may be coupled to a piezoelectric printhead and actuated in response to a control signal from a controller to facilitate curing materials deposited on the polymeric substrate. | 08-19-2010 |
20100208007 | PIEZOELECTRIC DEVICE, METHOD FOR PRODUCING PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE DEVICE - A piezoelectric device of the present invention includes a piezoelectric material and lower and upper electrodes for applying an electric field to the piezoelectric material. The upper electrode is patterned, and an edge portion of the upper electrode is provided with a structure where an intensity of the electric field exerted on the piezoelectric material gradually decreases along a direction from a central portion toward an edge surface of the upper electrode when the electric field is applied to the piezoelectric material. | 08-19-2010 |
20100214368 | INK-JET HEAD - A ink-jet head is disclosed. The ink-jet head includes a chamber, which accommodates ink, a nozzle, which is coupled to the chamber to allow the ink to be ejected, a membrane, which is formed on the chamber at a side opposite to the nozzle, a first actuator, which is coupled to the membrane and configured to deform the membrane, and a second actuator, which is coupled to one side of the chamber and configured to deform the membrane. In accordance with an embodiment of the present invention, the ink-jet head can provide the required displacement of the membrane, even with a thin-film type actuator. | 08-26-2010 |
20100214369 | Piezoelectric film, method for forming piezoelectric film, piezoelectric device and liquid discharge device - A piezoelectric film of the present invention has a surface roughness value P-V of not more than 170.0 nm, which is defined by a difference between a maximum height (peak value P) and a minimum height (valley value V) on a film surface, a piezoelectric constant d | 08-26-2010 |
20100214370 | METHOD FOR PRODUCING LIQUID EJECTING HEAD, LIQUID EJECTING HEAD, AND LIQUID EJECTING DEVICE - A liquid ejecting head has a piezoelectric element with a first electrode, a piezoelectric layer, and a second electrode. The liquid ejecting head causes pressure changes in a pressure generating chamber communicating with a nozzle opening. The piezoelectric layer has a perovskite structure and is preferentially orientated in a (100) plane. A method for producing the liquid ejecting head includes polarizing the piezoelectric layer by applying an electric field having energy higher than energy required for converting the polarization direction in the <111> direction to the <110> direction and lower than energy required for converting the polarization direction in the <111> direction to the <00 | 08-26-2010 |
20100220156 | INK-JET HEAD AND METHOD FOR MANUFACTURING THE SAME - An ink-jet head and a method for manufacturing the ink-jet head are disclosed. The ink-jet head can include: a chamber, which may house a type of ink; a membrane, which may be formed on one side of the chamber, and in a surface of which a holding cavity may be formed; a lower electrode, formed on an inner surface of the holding cavity; and a piezoelectric component, held in the holding cavity. According to certain embodiments of the invention, the ink-jet head can be formed with thin-film type actuators, and the electrical properties of the ink-jet head can be improved. | 09-02-2010 |
20100220157 | INK-JET HEAD AND METHOD FOR MANUFACTURING THE SAME - An ink-jet head and a method for manufacturing the ink-jet head are disclosed. A method for manufacturing an ink-jet head, which has a membrane formed on one side of a chamber housing ink, can include: forming a piezoelectric component over a glass substrate, attaching the piezoelectric component onto the membrane, irradiating a laser to an interface between the piezoelectric component and the glass substrate such that the piezoelectric component and the glass substrate are separated, and separating the piezoelectric component and the glass substrate. According to certain embodiments of the invention as set forth above, the actuator of the ink-jet head can be implemented in the form of a thin film, and as such, the electrical properties of the ink-jet head can be improved. | 09-02-2010 |
20100225709 | PIEZOELECTRIC ELEMENT, AND LIQUID EJECTION HEAD AND RECORDING APPARATUS USING THE PIEZOELECTRIC ELEMENT - Provided are a piezoelectric element that can effectively utilize a piezoelectric constant d | 09-09-2010 |
20100231657 | PIEZOELECTRIC ELEMENT, METHOD OF MANUFACTURING THE SAME, AND INK JET HEAD - A piezoelectric element | 09-16-2010 |
20100231658 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND ACTUATOR - A liquid ejecting head includes a flow channel forming substrate in which pressure generating chambers in communication with nozzles are formed; a piezoelectric element made up of a first electrode formed over the flow channel forming substrate, a piezoelectric layer formed over the first electrode and a second electrode formed over the piezoelectric layer; and a coating film provided by coating the piezoelectric element, wherein a hollow section formed by removing the coating film and a part of the second electrode is provided at an area opposite to the piezoelectric element, and an inclination angle θ1 of an end face of the coating film defining the hollow section with respect to the flow channel forming substrate and an inclination angle θ2 of an end face of the second electrode defining the hollow section satisfy a relationship of θ2<θ1. | 09-16-2010 |
20100245487 | Liquid Ejecting Head, Liquid Ejecting Apparatus, and Actuator - A liquid ejecting head is equipped with a piezoelectric element. The piezoelectric element has a piezoelectric layer containing titanium (Ti) and, zirconium (Zr) and first and second electrodes provided on both faces of the piezoelectric layer. The composition ratio of Ti and Zr in the piezoelectric layer Ti/(Zr+Ti) is in the range of 0.50 to 0.60 both inclusive. The piezoelectric layer contains rhombohedral crystals at least in a portion thereof covering the first electrode. | 09-30-2010 |
20100245488 | METHOD OF MANUFACTURING LIQUID EJECTING HEAD, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - Provided is a method of manufacturing a liquid ejecting head, the method including forming a piezoelectric element having a width in a reference direction longer than a width in an orthogonal direction orthogonal to the reference direction on a first substrate, and adhering a second substrate to a surface of the first substrate opposed to the piezoelectric element at a temperature lower than a normal temperature, wherein, in the adhering of the second substrate, the second substrate is adhered such that the first direction of the second substrate is adjusted to the reference direction, using a first thermal expansion coefficient in a first direction on an adhesion surface with the first substrate less than a second thermal expansion coefficient in a second direction orthogonal to the first direction and the first thermal expansion coefficient less than a thermal expansion coefficient of the first substrate. | 09-30-2010 |
20100245489 | METHODS AND APPARATUS OF MANUFACTURING MICRO AND NANO-SCALE FEATURES - The present invention provides methods of generating scalable micro to nano patterned features on a substrate. The methods include ejecting a succession of droplets; applying a force to the droplets in a manner such that the droplets travel along a designated path; altering the properties of droplets in a manner so as to adjust the size of the droplets from micrometer to nanometer; and depositing droplets on the substrate to generate patterned features on the substrate. Another aspect of the present invention provides an apparatus for generating scalable patterned features on a substrate. The apparatus includes a means for droplet forming and ejecting a succession of droplets; a means for altering the properties of droplets in a manner so as to adjust the size of the droplets from micrometer to nanometer; and one or more stream deflectors to control the direction of the droplets to generate patterned features on the substrate. | 09-30-2010 |
20100245490 | PIEZOELECTRIC ACTUATOR AND MANUFACTURING METHOD THEREOF, LIQUID EJECTING HEAD, AND IMAGE FORMING APPARATUS - A piezoelectric actuator is disclosed. The piezoelectric actuator includes a base member and three or more piezoelectric element members in which plural piezoelectric elements are formed by slits. The three or more piezoelectric element members are arrayed in a line on the base member and a gap is formed at the connection position between two adjacent piezoelectric element members. | 09-30-2010 |
20100253749 | PIEZOELECTRIC MATERIAL, METHOD FOR PRODUCING PIEZOELECTRIC MATERIAL, PIEZOELECTRIC DEVICE AND LIQUID DISCHARGE DEVICE - A piezoelectric material of the invention includes a perovskite oxide (P) (which may contain inevitable impurities) represented by the formula below: | 10-07-2010 |
20100302322 | MICROMACHINED FLUID EJECTOR - This invention relates to micromachined fluid ejector arrays having a fluid reservoir bounded at one side by an elastic membrane having scalable arrays of orifices arranged between concentric piezoelectric transducers, and bounded at another side by a top cover supported by surrounding walls. By actuating neighboring concentric piezoelectric transducers, the scalable array of orifices arranged between the actuated neighboring concentric piezoelectric transducers deflect to eject fluid droplets. Also disclosed is a micromachined fluid ejector array having a fluid reservoir bounded at one side by an elastic membrane having scalable arrays of orifices arranged between concentric piezoelectric transducers, and at another side by a top cover supported by surrounding walls with a piezoelectric layer bonded on top of the top cover. By actuating the piezoelectric layer, the scalable arrays of orifices arranged between the neighboring concentric piezoelectric transducers deflect in phase to eject fluid droplets. | 12-02-2010 |
20100321448 | Multichannel - printhead or dosing head - A Printhead, particularly suitable for viscous or particle-filled fluids, with multiple channels is proposed. A channel of the printhead is characterized by a micro-electro-pneumatic circuit | 12-23-2010 |
20110007114 | PIEZOELECTRIC ELEMENT, METHOD FOR MANUFACTURING THE SAME, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element includes: a substrate; a lower electrode that is formed on and/or over the substrate; a piezoelectric substance layer that covers the lower electrode; and an upper electrode that is formed on and/or over the piezoelectric substance layer, wherein a side surface of the piezoelectric substance layer includes a first portion that extends from an upper surface of the piezoelectric substance layer and a second portion that extends from the first portion, the first portion is inclined at a first angle with respect to an upper surface of the substrate, the second portion is inclined at a second angle with respect to the upper surface of the substrate, the second angle is smaller than the first angle, and the upper electrode covers at least the first portion and the second portion. | 01-13-2011 |
20110007115 | PEROVSKITE OXIDE MATERIAL, FERROELECTRIC COMPOUND, PIEZOELECTRIC BODY, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE DEVICE - A perovskite oxide material containing: BiFeO | 01-13-2011 |
20110018944 | PIEZOELECTRIC ACTUATOR AND LIQUID EJECTING HEAD - There is provided a piezoelectric actuator including: a substrate that is supported by a support portion; a piezoelectric element that includes a lower electrode formed on the substrate, a piezoelectric layer formed on the lower substrate, and an upper electrode formed on the piezoelectric layer; and a driving circuit that applies a voltage to the piezoelectric element. The upper electrode has a first upper electrode that is positioned on an outer peripheral side of the piezoelectric layer and at least one second upper electrode that is positioned on a center side of the piezoelectric layer, and a voltage applied to the first upper electrode is lower than a voltage applied to the second upper electrode. | 01-27-2011 |
20110018945 | PIEZOELECTRIC ELEMENT, INK JET HEAD AND PRODUCING METHOD FOR PIEZOELECTRIC ELEMENT - A piezoelectric element comprises a piezoelectric film disposed on a substrate and a pair of electrodes disposed in contact with the piezoelectric film and utilizing a bending mode. The piezoelectric film includes domains constituted of a tetragonal crystal and including an a-domain which is formed by a crystal having a (100) plane parallel to the film surface of the piezoelectric film, the a-domains include an A-domain having a normal axis of (001) plane substantially parallel to a principal bending direction of the piezoelectric film and a B-domain having a normal axis of (001) plane substantially perpendicular to the principal bending direction of the piezoelectric film, and the A-domains have a volume proportion larger than 50 vol % with respect to the sum of the volume of the A-domains and the volume of the B-domains. | 01-27-2011 |
20110037810 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS USING THE SAME - A liquid ejecting head includes a passage-forming substrate provided with a pressure-generating chamber communicated with a nozzle which ejects droplets, and a piezoelectric element provided on the passage-forming substrate. The piezoelectric element includes a piezoelectric layer and a pair of electrodes provided on both surfaces of the piezoelectric layer, and the piezoelectric layer contains BaTiO | 02-17-2011 |
20110037811 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS USING THE SAME - A liquid ejecting head includes a passage-forming substrate provided with a pressure-generating chamber communicated with a nozzle which ejects droplets, and a piezoelectric element provided on the passage-forming substrate. The piezoelectric element includes a piezoelectric layer and a pair of electrodes provided on both surfaces of the piezoelectric layer, and the piezoelectric layer contains BaTiO | 02-17-2011 |
20110037812 | Columnar Structure Film and Method of Forming Same, Piezoelectric Element, Liquid Ejection Apparatus and Piezoelectric Ultrasonic Oscillator - The columnar structure film is formed on a surface of a substrate by vapor phase epitaxy, and is constituted of a plurality of columnar bodies extending in directions non-parallel to the surface of the substrate. In the columnar structure film, a relationship GS | 02-17-2011 |
20110043573 | PIEZOELECTRIC ACTUATOR, METHOD FOR MANUFACTURING PIEZOELECTRIC ACTUATOR, LIQUID-EJECTING HEAD, AND LIQUID-EJECTING APPARATUS - A piezoelectric actuator includes a substrate; a diaphragm overlying the substrate; a lower electrode overlying the diaphragm; a piezoelectric body overlying the lower electrode; an upper electrode that includes a first upper sub-electrode which overlies the piezoelectric body and which has a first sputtering rate and also includes a second upper sub-electrode which overlies the first upper sub-electrode, which has a second sputtering rate less than the first sputtering rate, and which is the uppermost layer; and a protective film extending over side surfaces of the piezoelectric body and the second upper sub-electrode, a portion of the protective film that overlies the second upper sub-electrode being removed by sputtering. | 02-24-2011 |
20110043574 | DROPLET EJECTING HEAD, DROPLET EJECTING APPARATUS, PIEZOELECTRIC DEVICE, AND CERAMIC - A droplet ejecting head including: a pressure chamber connected to a nozzle hole; and a piezoelectric device having ceramic member provided with an electrode. The ceramic member is made from a solid solution containing bismuth ferrate, bismuth potassium titanate, and bismuth manganate. | 02-24-2011 |
20110043575 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD FOR PRODUCING PIEZOELECTRIC ELEMENT - A piezoelectric element includes a substrate; a first conductive layer disposed on or above the substrate; a piezoelectric layer covering a top and a side of the first conductive layer; a relaxing layer disposed on or above the piezoelectric layer and along an edge of a top surface of the piezoelectric layer; and a second conductive layer covering at least the relaxing layer and the piezoelectric layer. | 02-24-2011 |
20110050808 | PIEZOELECTRIC PRINTHEAD AND RELATED METHODS - A piezoelectric printhead and related methods provide a first metallic electrode and a second metallic electrode deposited over a top surface and a bottom surface, respectively, of a piezoceramic plate. The second electrode is segmented into a plurality of electrode segments. A diaphragm is positioned over a plurality of pressure chambers, where the diaphragm includes a conductor positioned over each chamber. The piezoceramic plate is attached to the diaphragm such that each conductor on the diaphragm faces multiple electrode segments. | 03-03-2011 |
20110063376 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element includes a first conductive layer, a second conductive layer disposed to face the first conductive layer, and a piezoelectric layer disposed between the first conductive layer and the second conductive layer and composed of a compound oxide containing at least lead, zirconium, titanium, and oxygen. The piezoelectric layer includes a lead concentration gradient region in which the lead concentration increases from the first conductive layer side to the second conductive layer side. The lead concentration gradient region is disposed on the first conductive layer side of the piezoelectric layer. | 03-17-2011 |
20110063377 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element includes a first conductive layer, a second conductive layer facing the first conductive layer, and a piezoelectric layer between the first and second conductive layers, composed of a compound oxide containing at least lead, zirconium, titanium, and oxygen. The piezoelectric layer includes a first crystal layer on the first conductive layer side of the piezoelectric layer and a second crystal layer continued from the first crystal layer, nearer to the second conductive layer side than the first crystal layer. In the piezoelectric layer, the lead concentration in the first conductive layer side of the first crystal layer is lower than that in the second conductive layer side of the second crystal layer. In the piezoelectric layer, the oxygen concentration in the first conductive layer side of the first crystal layer is higher than that in the second conductive layer side of the second crystal layer. | 03-17-2011 |
20110074888 | Piezoelectric Actuator, Method of Driving Same, Liquid Ejection Apparatus and Piezoelectric Ultrasonic Osicllator - A method of driving a piezoelectric actuator including: a piezoelectric element containing a piezoelectric body having coercive field points on a negative field side and a positive field side respectively and having asymmetrical bipolar polarization—electric field hysteresis characteristics in which an absolute value of a coercive electric field on the negative field side and a coercive electric field value on the positive field side are mutually different, and a pair of electrodes for applying voltage to the piezoelectric body; and a diaphragm which externally transmits, as displacement, distortion produced in the piezoelectric body when the voltage is applied to the piezoelectric body, includes the step of driving the piezoelectric actuator between a positive drive voltage and a negative drive voltage in a range not exceeding the coercive electric field, from among the positive and negative coercive electric fields, which has the larger absolute value. | 03-31-2011 |
20110090289 | ELECTRO-MECHANICAL TRANSDUCER, METHOD OF MAKING THE TRANSDUCER, LIQUID EJECTION HEAD INCLUDING THE TRANSDUCER, AND LIQUID EJECTION APPARATUS INCLUDING THE HEAD - An electro-mechanical transducer includes a plurality of independent elements. Each of the plurality of independent elements includes one of a substrate and a foundation film, a first electrode of oxide disposed on the one of the substrate and the foundation film, an electro-mechanical transducer film disposed on the first electrode, a second electrode of oxide disposed on the electro-mechanical transducer film, and a third electrode of metal formed on the first electrode as a common electrode conductive to the first electrode and common to at least two of the plurality of independent elements. | 04-21-2011 |
20110090290 | METHOD FOR MANUFACTURING PATTERNED LAYER ON SUBSTRATE - A method for manufacturing a patterned layer on a substrate with a print head unit includes mounting a print head unit to an ink-jet device, the print head unit including at least two side print heads and one central print head, the print heads each comprising a nozzle line, rotationally moving at least one of the side print heads relative to the central pint head to achieve parallelism, rotating the print head unit around a rotating axis perpendicular to the substrate, linearly moving the side print heads along the respective nozzle line thereof to correspond to pitches of the nozzles and that of the cells on the substrate, depositing ink into the cells on the substrate, and solidifying the ink so as to form a patterned layer on the substrate. | 04-21-2011 |
20110102514 | LIQUID EJECTING APPARATUS - Provided is a liquid ejecting apparatus which comprises a pressure generation chamber, a piezoelectric element, and a driving unit which supplies a driving signal to the piezoelectric element. The piezoelectric layer shows electric field induced phase transition and when among voltages at which the piezoelectric layer shows the electric field induced phase transition a voltage having a higher absolute value is defined as V | 05-05-2011 |
20110102515 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND PIEZOELECTRIC ELEMENT - A piezoelectric element has a first electrode, a piezoelectric layer, and a second electrode. The first electrode is preferentially oriented along the (111) plane in the direction parallel to the film surface and, in the direction perpendicular to the film surface, the sum of the (111) and (200) planes relative to the sum of the (111), (200), and (220) planes is 20% or less in terms of the abundance ratio. | 05-05-2011 |
20110109701 | PIEZOELECTRIC DEVICE, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric device includes a first electrode and a facing second electrode, with a piezoelectric layer therebetween. The first electrode includes a first conductive layer, a first intermediate layer that contacts the first conductive layer, a second intermediate layer that contacts the first intermediate layer, and a second conductive layer that contacts the second intermediate layer and the piezoelectric layer. The first conductive layer contains a metal and an alloy. The metal is Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu, Ag, or Au, and the alloy contains at least one of the foregoing metals. The first intermediate layer contains a nitrogen compound. The second intermediate layer contains a metal and an alloy. The metal is Ti, Zr, W, Ta, or Al, and the alloy contains at least two of the foregoing metals. The second conductive layer contains a conductive oxide. | 05-12-2011 |
20110128327 | PIEZOELECTRIC CERAMIC, METHOD FOR MAKING THE SAME, PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD, AND ULTRASONIC MOTOR - A piezoelectric ceramic that includes barium titanate and 0.04 mass % or more and 0.20 mass % or less manganese relative to barium titanate. The piezoelectric ceramic is composed of crystal grains. The crystal grains include crystal grains A having an equivalent circular diameter of 30 μm or more and 300 μm or less and crystal grains B having an equivalent circular diameter of 0.5 μm or more and 3 μm or less. The crystal grains A and the crystal grains B individually form aggregates and the aggregates of the crystal grains A and the aggregates of the crystal grains B form a sea-island structure. | 06-02-2011 |
20110134194 | PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING THE SAME, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric device includes: a substrate; a first electrode formed over the substrate; a first piezoelectric element formed over the first electrode; a low density region which is formed at a side of the first piezoelectric element and has density lower than that of the first piezoelectric element; a second piezoelectric element which is formed to cover the first piezoelectric element and the low density region; and a second electrode formed over the second piezoelectric element. | 06-09-2011 |
20110141199 | Inkjet head assembly - An inkjet head assembly includes: a tank head having an ink channel formed therein; an inkjet head disposed in the tank head to jet ink introduced through the ink channel; and a mass disposed on the inkjet head and applying a weight to control vibrations when ink is jetted from the inkjet head. | 06-16-2011 |
20110141200 | PIEZOELECTRIC DEVICE, PIEZOELECTRIC ACTUATOR, DROPLET EJECTING HEAD, AND DROPLET EJECTING APPARATUS - A piezoelectric device including: a first electrode layer provided so as to overlie a substrate; a second electrode layer disposed so as to face the first electrode layer; and a piezoelectric layer disposed between the first electrode layer and the second electrode layer. The first electrode layer has a conductive layer and a barrier layer. The barrier layer is provided between the conductive layer and the piezoelectric layer so as to prevent the conductive layer from contacting the piezoelectric layer. | 06-16-2011 |
20110141201 | LIQUID EJECTION HEAD - The present invention provides a print head that ejects ink supplied through an ink supply port so as to prevent the size of satellites from being reduced while inhibiting an increase in resistance to an ink flow. In the print head, ink supply ports are arranged on both sides of a plurality of channels. A predetermined number of ink supply ports are arranged at least one side of the ink channel all over the range of the arrangement of the channels. One side of each of the plurality of channels is connected via the common liquid chamber to the liquid supply port located so as to extend in a direction in which the channels are arranged. | 06-16-2011 |
20110148990 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a flow channel forming substrate having pressure generation chambers communicating with a nozzle opening and arranged in parallel along a lateral direction. A piezoelectric element is provided on one surface of the flow channel forming substrate in correspondence to the pressure generation chamber, and has a first electrode, a piezoelectric layer provided on the first electrode and a second electrode provided on the piezoelectric layer. In a direction intersecting with the arrangement direction of the pressure generation chambers, in boundaries between an active section that is a substantial driving section and an inactive section that is not a substantial driving section of the piezoelectric layer, the first electrode includes a taper section of which a width is gradually decreased toward the boundary from the active section side. | 06-23-2011 |
20110148991 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a flow channel forming substrate having a pressure generation chamber communicating with a nozzle opening and arranged in parallel along a lateral direction. A piezoelectric element is provided on one surface of the flow channel forming substrate in correspondence to the pressure generation chamber, and has a first electrode, a piezoelectric layer provided on the first electrode and a second electrode provided on the piezoelectric layer. In a direction intersecting with the arrangement direction of the pressure generation chamber, in boundaries between an active section that is a substantial driving section and an inactive section that is not a substantial driving section of the piezoelectric layer of the first electrode, an opening group is provided including at least one opening in the active section and the inactive section. | 06-23-2011 |
20110148992 | PIEZOELECTRIC ELEMENT, LIQUID JET HEAD AND PRINTER - A piezoelectric element includes: a base substrate; a lower electrode formed above the base substrate; a piezoelectric layer that is formed above the lower electrode, and formed from a perovskite type oxide; and an upper electrode formed above the piezoelectric layer, wherein the piezoelectric layer is oriented to (100) crystal orientation in the pseudo-cubic crystal expression, and a crystal of the perovskite type oxide in a direction parallel to a lower surface of the piezoelectric layer has a lattice constant greater than a lattice constant of the crystal of the perovskite type oxide in a direction orthogonal to the lower surface of the piezoelectric layer. | 06-23-2011 |
20110164093 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A piezoelectric element comprising a first electrode, a piezoelectric layer which contains lead, zirconium, and titanium, and which is formed above the first electrode, and a second electrode formed above the piezoelectric layer. A groove which exists between grains in the second electrode side surface of the piezoelectric layer, satisfies 0≦d/ρ≦0.900 (where d: depth of groove, w: width of groove, ρ: radius of curvature (d | 07-07-2011 |
20110164094 | LIQUID DISCHARGE METHOD, LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS - A liquid discharge head is arranged in a manner that in the cross section of a discharge port in a liquid discharge direction, the discharge port includes: at least one projection that is convex inside the discharge port; a first area, for holding a liquid surface connecting a pillar-shaped liquid that is elongated outside the discharge port; and second areas where a fluid resistance is lower than that in the first area so as to pull the liquid in the discharge port in a direction opposite to the liquid discharge direction; and the first area is formed in the direction in which the projection is convex, and the second areas are formed on both sides of the projection. | 07-07-2011 |
20110169895 | Inkjet print head, wafer level package and method of manufacturing the same - There is provided an inkjet print head including an ink head and a chipping prevention portion. The ink head includes a nozzle for ejecting ink to the outside by a driving force of a piezoelectric actuator mounted on a surface of the ink head. The chipping prevention portion includes a cutting portion disposed at a side of the ink head and being cut so as to have a height lower than that of the nozzle. | 07-14-2011 |
20110169896 | LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS - A liquid ejection head comprising a flow-channel-containing substrate having pressure generating chambers communicating a nozzle opening and a piezoelectric element including a first electrode, a piezoelectric layer formed above the first electrode, and a second electrode formed above the piezoelectric layer. The piezoelectric layer includes an active portion which is substantially driven, a non-active portion which is not substantially driven, and a low dielectric material layer which has a dielectric constant lower than that of a center portion of the active portion and which is in the active portion side of the boundary between the active portion and the non-active portion. | 07-14-2011 |
20110181667 | INKJET HEAD AND METHOD FOR MANUFACTURING THE SAME - There is provided an inkjet head that permits ink to be easily circulated therein and that is applicable to the ink containing fine particles, without making a structure thereof complicated. The inkjet head | 07-28-2011 |
20110199437 | LIQUID EJECTING HEAD - A discrete element electrode terminal and a driving IC are formed between piezoelectric element rows. A circuit substrate is placed at a side opposite to a flow path substrate side of the driving IC. An input pad is formed on an elastic film at a position corresponding to an inter terminal of the driving IC. An output terminal of the driving IC is electrically bonded to the discrete element electrode terminal, the input terminal of the driving IC is electrically bonded to the input pad, and the input pad is electrically bonded to a substrate terminal of the circuit substrate. | 08-18-2011 |
20110205306 | REINFORCED MEMBRANE FILTER FOR PRINTHEAD - A jetting module includes a first substrate, a liquid source, and a second substrate. Portions of the first substrate define a nozzle. The liquid source provides a liquid under pressure sufficient to jet a stream of the liquid through the nozzle. Portions of the second substrate define a filter including a plurality of pores. The filter is positioned between and in fluid communication with the liquid source and the nozzle. The second substrate includes a semi-conductor material. | 08-25-2011 |
20110205307 | SOL-GEL LIQUID, ELECTROMECHANICAL CONVERSION ELEMENT, LIQUID DISCHARGE HEAD AND INKJET RECORDER - A sol-gel liquid for use in forming an individualized electromechanical conversion film of an electromechanical conversion element by inkjet methods, including a lead zirconate titanate (PZT) or the PZT and other metal complex oxides; and an organic solvent having properties surrounded by A, B, C, D, E and F in triangular composition diagram of FIG. | 08-25-2011 |
20110205308 | LIQUID EJECTION HEAD WIRING MEMBER AND LIQUID EJECTION HEAD - The first and second cables overlap with each other while at an attitude where the wiring terminal formation surfaces face the same side, and the one-end-side common wiring terminal is located on the outside of the arrangement direction of the wiring terminals of the group of the one-end-side individual electrode wirings. The one end portions of the first and second cables are bent in the same direction so that the wiring terminals respectively face element terminals of piezoelectric elements, and the wiring terminals are respectively bonded to the corresponding element terminals. | 08-25-2011 |
20110205309 | PIEZOELECTRIC ACTUATOR AND LIQUID-DROPLET EJECTION HEAD - A piezoelectric actuator disposed on a surface of a flow-path forming member may comprise a first piezoelectric layer disposed farthest from the surface of the flow-path forming member. The piezoelectric actuator may comprise a surface electrode disposed on one surface of the first piezoelectric layer opposite the surface of the flow-path forming member. The piezoelectric actuator may comprise a land bonded to a terminal of a power supply member. The piezoelectric actuator may comprise a continuous detection electrode including an outer peripheral portion extending along the outline of an area that opposes the land to surround the area and being disposed on one of the other surface of the first piezoelectric layer and a surface of a second piezoelectric layer. | 08-25-2011 |
20110205310 | PIEZOELECTRIC DEVICE, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric device comprises a first electrode, a piezoelectric layer above the first electrode, a metal oxide film including a lanthanum nickel oxide above the piezoelectric layer, and a second electrode above the metal oxide film. The metal oxide film has a perovskite structure and a lanthanum/nickel molar ratio of 1.2 to 1.5. | 08-25-2011 |
20110205311 | ACTUATOR DEVICE AND LIQUID EJECTING HEAD INCLUDING THE SAME - An actuator device includes a piezoelectric element including a lower electrode, a piezoelectric layer, and an upper electrode that are displaceably provided in sequence on a substrate. The lower electrode includes a flat center portion and an inclined end portion that descends toward the substrate. The piezoelectric layer is disposed above the lower electrode and the substrate, and includes a first, second, and third piezoelectric layer portion constituted by a plurality of columnar crystals. The columnar crystals of the first and second piezoelectric layer portions are orthogonal to the flat portion of the lower electrode and surface of the substrate, while the columnar crystals of the third piezoelectric layer portion extend orthogonally from a surface of the inclined portion and bend to be orthogonal to the surface of the upper electrode, giving the grains of the columnar crystals of the third piezoelectric layer portion larger widths and increased stress resistance. | 08-25-2011 |
20110216129 | INKJET HEAD AND INKJET RECORDING DEVICE - According to one embodiment, an inkjet head includes: plural piezoelectric element partition walls, a nozzle plate, a frame member, and a sealing member. The piezoelectric element partition walls are arrayed on a substrate in a direction orthogonal to a predetermined ink ejecting direction and forms partition walls of plural pressure chambers. The nozzle plate is bonded to be crosslinked to top surfaces of the plural piezoelectric element partition walls and the plural nozzle holes are formed in the nozzle plate. The frame member surrounds the piezoelectric element partition walls. The sealing member is bonded to a surface of the nozzle plate on a side not opposed to the piezoelectric element partition walls and bonded to a top surface of the frame member and has openings in positions corresponding to the plural nozzle holes. | 09-08-2011 |
20110216130 | PIEZOELECTRIC ELEMENT, LIQUID EJECTION HEAD, AND LIQUID EJECTION DEVICE - A piezoelectric element having a piezoelectric layer and electrodes. The piezoelectric layer is 3 μM or less in thickness. The piezoelectric layer is made of a piezoelectric material containing a perovskite compound including bismuth manganate ferrate and barium titanate. The piezoelectric layer is preferentially oriented with the (110) plane. The position (2θ) of the X-ray diffraction peak attributed to the (110) plane is 31.80° or more and 32.00° or less. | 09-08-2011 |
20110216131 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND PIEZOELECTRIC ELEMENT - There are provided a piezoelectric element comprising a first electrode, a piezoelectric layer and a second electrode, the piezoelectric layer is made of a piezoelectric material that contains a bismuth ferrite and silicon dioxide. | 09-08-2011 |
20110216132 | PEROVSKITE OXIDE, PROCESS FOR PRODUCING THE PEROVSKITE OXIDE, PIEZOELECTRIC BODY, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE DEVICE - A process for producing a piezoelectric oxide having a composition (A, B, C)(D, E, F)O | 09-08-2011 |
20110221826 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND PIEZOELECTRIC ELEMENT - Provided is a piezoelectric element comprising a piezoelectric layer and an electrode. The piezoelectric layer includes a solid solution of bismuth lanthanum titanate zincate and lead titanate. The molar ratio of the bismuth lanthanum titanate zincate to the lead titanate in the piezoelectric layer is 0.39 or more and 0.61 or less. | 09-15-2011 |
20110221827 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - There is provided a liquid ejecting head comprising a pressure generating chamber and a piezoelectric actuator having a piezoelectric material consisting of composite oxide. The composite oxide contains bismuth, sodium, barium, titanium, and zinc. A ratio of zinc content to the total amount of titanium and zinc is 0.35 mol % or more and 1.25 mol % or less. | 09-15-2011 |
20110221828 | LIQUID-EJECTING HEAD, LIQUID-EJECTING APPARATUS, AND PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC MATERIAL - A liquid-ejecting head comprises a pressure-generating chamber and a piezoelectric element including a piezoelectric material. The piezoelectric material contains a complex oxide having a perovskite structure. The complex oxide contains bismuth, sodium, barium, titanium, and copper. The ratio of copper to the total amount of titanium and copper is 0.35 mol % or more and 0.70 mol % or less. | 09-15-2011 |
20110221829 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element comprises a piezoelectric layer made of a perovskite compound containing sodium, potassium, lithium, niobium and tantalum and bismuth manganate and electrodes for applying a voltage to the piezoelectric layer. | 09-15-2011 |
20110221830 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head comprises a pressure-generating chamber communicating with a nozzle opening and a piezoelectric element including a piezoelectric layer and electrodes. The piezoelectric layer is composed of a compound oxide having a perovskite structure and containing bismuth, ferrate, manganese, potassium and titanium. | 09-15-2011 |
20110221831 | LIQUID EJECTION HEAD - A liquid ejection head, comprises a pressure generation chamber communicating with a nozzle opening and a piezoelectric element having a piezoelectric layer and an electrodes. The piezoelectric layer is a perovskite type complex oxide containing bismuth, iron, and cerium. The piezoelectric layer contains the cerium in a proportion of 0.01 mol % or more and 0.13 mol % or lower based on the total amount of the bismuth and the cerium. | 09-15-2011 |
20110228011 | Restriction Of Fluid Ejector Membrane - A fluid ejection module includes a die having a plurality of substantially identical fluid ejector units formed therein. Each fluid ejector unit includes a flow path formed therethrough, the flow path including a pumping chamber fluidically connected to a nozzle, and an actuator assembly including a membrane providing a wall of the pumping chamber and an actuator, the actuator assembly configured to eject fluid from a pumping chamber through an associated nozzle. The plurality of individually actuatable fluid ejector units includes a plurality of individually actuatable first fluid ejector units and at least one second fluid ejector unit, and the actuator assembly of the at least one second fluid ejector unit includes a material deposited on the actuator such that the actuator assembly of the at least one second fluid ejector unit is stiffer than the actuator assemblies of the first fluid ejector units. | 09-22-2011 |
20110228012 | INK-JET APPARATUS - An ink-jet apparatus comprising: an ink supply channel through which ink flows; an ink chamber that communicates with the ink supply channel via an ink inlet channel, holds the ink supplied from the ink supply channel, and has a nozzle that discharges the ink; an ink evacuation channel that communicates with the ink chamber via an ink outlet channel, and through which the ink evacuated from the ink chamber flows; an ink circulating section that applies pressure to the ink so that the ink flows into the ink evacuation channel from the ink supply channel via the ink chamber; a first actuator that vibrates a wall of the ink chamber; and a second actuator that changes an area of a cross-section of the ink outlet channel. | 09-22-2011 |
20110228013 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, DROPLET-EJECTING HEAD, DROPLET-EJECTING APPARATUS, AND METHOD FOR MANUFACTURING PIEZOELECTRIC ELEMENT - A piezoelectric element includes a first electrode disposed on a substrate, a piezoelectric layer disposed on the first electrode, a second electrode disposed on the piezoelectric layer, and a resin layer that covers at least the side surfaces of the first electrode. The first electrode includes a metal layer and an anti-oxidation layer. The metal layer is formed of a base metal. The anti-oxidation layer is disposed between the metal layer and the piezoelectric layer to prevent contact between the metal layer and the piezoelectric layer. | 09-22-2011 |
20110228014 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element comprises electrodes and a piezoelectric member which is disposed between the electrodes. The piezoelectric member includes a first layer containing bismuth and titanium and a second layer containing bismuth lanthanum iron and manganese. | 09-22-2011 |
20110234704 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID DROPLET EJECTING HEAD, LIQUID DROPLET EJECTING APPARATUS, AND METHOD OF PRODUCING PIEZOELECTRIC ELEMENT - The piezoelectric element includes a first electrode disposed on a substrate, a piezoelectric material layer disposed on the first electrode, a second electrode disposed on the piezoelectric material layer, and a protective film covering at least a side surface of the piezoelectric material layer. The side surface of the piezoelectric material layer has a plurality of grooves extending along the direction from the second electrode toward the first electrode. | 09-29-2011 |
20110234705 | INK JET HEAD AND INK JET DEVICE HAVING THE SAME - An ink jet head and an ink jet device having the same are provided, which include an ink supply path supplied with ink from an ink inlet port, an ink discharge path configured to discharge the ink to an ink discharge port, an ink chamber provided to communicate with the ink supply path and the ink discharge path and having a nozzle configured to discharge the ink, and a piezoelectric actuator operable to apply pressure to the ink within the ink chamber by displacement of a vibrating plate of the ink chamber, wherein the piezoelectric actuator is arranged through the vibrating plate of the ink chamber and an island member, the island member is disposed to extend between the ink supply path and the ink discharge path, and a length W | 09-29-2011 |
20110234706 | INK-JET APPARATUS - An ink-jet apparatus includes an ink supply flow path, an ink discharge flow path, and an ink flow path connecting them, in which piezoelectric elements are provided in the ink flow path having at least one turn part, the piezoelectric elements are arranged to be opposed to the ink flow path and are provided upstream of the turn part in the ink flow path and downstream of the turn part in the ink flow path, and a nozzle is provided between the piezoelectric element and the turn part in the ink flow path. | 09-29-2011 |
20110242225 | PIEZOELECTRIC ACTUATOR UNIT AND METHOD FOR TESTING PIEZOELECTRIC ACTUATOR UNIT - A piezoelectric actuator unit includes: a wiring board; a piezoelectric actuator which is provided with a piezoelectric layer, a plurality of individual electrodes provided to the piezoelectric layer, a common electrode which faces the plurality of individual electrodes sandwiching the piezoelectric layer between the common electrode and individual electrodes, and which is divided into a plurality of split electrodes, a plurality of individual contact points which are in conduction with the individual electrodes, and which are to be connected to the wiring board, and a plurality of reinforcing contact points which are connected to the wiring board to reinforce a connection with the wiring board; and a conduction mechanism which brings the plurality of split electrodes into conduction. Each of the split electrodes is in conduction with at least one of the reinforcing contact points. | 10-06-2011 |
20110242226 | INK-JET HEAD AND INK-JET APPARATUS - An ink-jet head includes an ink chamber; an ink supply channel through which ink to be supplied to the ink chamber flows; an ink discharge channel through which the ink discharged from the ink chamber flows; a partition wall constituting a side surface of the ink chamber; an ink inlet opening formed in the partition wall, the ink inlet opening communicating with the ink supply channel; an ink outlet opening formed in the partition wall, the ink outlet opening communicating with the ink discharge channel; a piezo-mounting plate constituting a top surface of the ink chamber; an expandable multilayer piezoelectric element placed inside the ink chamber, the multilayer piezoelectric element having a fixed end secured to the piezo-mounting plate and a movable end directing to the expanding direction of the multilayer piezoelectric element; a nozzle plate constituting a bottom surface of the ink chamber; and a nozzle formed in the nozzle plate, the nozzle communicating with the ink chamber, wherein the multilayer piezoelectric element is separated from the partition wall, and the ink inlet opening is positioned closer to the fixed end of the multilayer piezoelectric element than to the movable end thereof. | 10-06-2011 |
20110254899 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS - A liquid ejecting head comprises a pressure chamber communicating with nozzle and a piezoelectric actuator including a piezoelectric layer and an electrode which applies a voltage to the piezoelectric layer. The piezoelectric layer is composed of a solid solution containing bismuth sodium titanate and 0.2 mol % or more and 8.0 mol % or less of copper. | 10-20-2011 |
20110261119 | Method and Apparatus for Droplet Deposition - A method for depositing droplets onto a substrate employs an apparatus, such as an inkjet printhead, the apparatus having: an array of channels, acting as fluid chambers, separated by interspersed walls, with each channel communicating with an aperture or nozzle for the release of droplets of a fluid contained within the channel, such as ink. Each of the walls separates two neighbouring channels and is actuable such that, in response to a first voltage, it will deform so as to decrease the volume of one channel and increase the volume of the other channel, and, in response to a second voltage, it will deform so as to cause the opposite effect on the volumes of the neighbouring channels. The method includes the steps of: receiving input data, such as an array of image data pixels; selecting pairs of adjacent channels based on the input data; assigning the selected pairs of adjacent channels as firing channels and the remaining channels as non-firing channels. While the pairs of firing channels may generally have any spacing, one of the pairs of firing channels is spaced apart from another of the pairs of firing channels by an odd number of non-firing channels. Within each of these selected pairs, the separating wall of that pair is actuated so as to cause the release of at least one droplet from each of said firing channels. The actuations for all the pairs overlap in time so as to ensure a high level of throughput or printing speed. | 10-27-2011 |
20110267405 | PIEZOELECTRIC ELEMENT, LIQUID EJECTION HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element, comprising electrodes and a piezoelectric body formed between the electrodes. The piezoelectric body consists of a perovskite oxide including bismuth, lantern, iron and manganese. The molar ratio of the sum of the bismuth and the lantern to the sum of the iron and the manganese is 0.87 or more and 0.94 or less. The molor ratio of the bismuth to the lantern is 3.57 or more and 4.82 or less. | 11-03-2011 |
20110273515 | AQUEOUS INKJET INK - According to one embodiment, an aqueous inkjet ink includes a dispersion medium that contains water and a water-soluble polyhydric alcohol having a weight average molecular weight of 400 or more, and a pigment. The pigment accounts for less than 5 mass % of the total amount of the aqueous inkjet ink. The aqueous inkjet ink has viscosities (mPa·s) measured using a cone-plate type viscometer at 20 rpm and satisfying the following relationships: | 11-10-2011 |
20110273516 | PIEZOELECTRIC ELEMENT, LIQUID-EJECTING HEAD, AND LIQUID-EJECTING APPARATUS - A piezoelectric element includes a piezoelectric layer and electrodes provided to the piezoelectric layer. The piezoelectric layer consists of a complex oxide containing bismuth, cerium, iron and cobalt and the molar ratio of cobalt to the total of iron and cobalt is 0.125 or more and 0.875 or less. | 11-10-2011 |
20110273517 | PIEZOELECTRIC ELEMENT, LIQUID-EJECTING HEAD, AND LIQUID-EJECTING APPARATUS - A piezoelectric element includes electrodes and a piezoelectric layer provided between the electrodes. The piezoelectric layer is made of a complex oxide which contains bismuth, iron, and chromium. The piezoelectric layer contains 0.125 to 0.875 mole of chromium per mole of the combination of iron and chromium. | 11-10-2011 |
20110279551 | Inkjet print head and inkjet printer including the same - There is provided an inkjet print head that includes: an inkjet head plate with a plurality of head cells including ink passages where introduced ink is ejected through a nozzle by passing through a pressure chamber; and a piezoelectric actuator formed on the top of the inkjet head plate and formed at a position corresponding to the pressure chamber, wherein the area of at least one of the pressure chamber and the piezoelectric actuator is changed to make ejection characteristics of the ink ejected from the plurality of head cells uniform. | 11-17-2011 |
20110292133 | PEROVSKITE OXIDE, OXIDE COMPOSITION, OXIDE BODY, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS - Disclosed is a non-lead perovskite oxide having a low Curie temperature and high ferroelectricity represented by General Formula (P) given below. | 12-01-2011 |
20110292134 | PEROVSKITE OXIDE, OXIDE COMPOSITION, OXIDE BODY, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS - A perovskite oxide, which includes a first component represented by General Formula (P1) given below and a second component represented by General Formula (P2) given below. | 12-01-2011 |
20110298872 | PIEZOELECTRIC ACTUATOR, LIQUID EJECTION HEAD, AND IMAGE FORMING APPARATUS - A piezoelectric actuator includes a piezoelectric member having piezoelectric pillars and grooves alternately arrayed. Each of the grooves has a first width at a bottom side of the piezoelectric pillars and a second width at an upper side of the piezoelectric pillars in a direction in which the piezoelectric pillars are arrayed. The first width is greater than the second width. | 12-08-2011 |
20110316937 | PIEZOELECTRIC FILM, PIEZOELECTRIC DEVICE AND LIQUID EJECTION APPARATUS - A piezoelectric film has a columnar crystal structure constituted of a plurality of columnar crystals, and contains a perovskite oxide represented by the following formula (P) as a main component: | 12-29-2011 |
20110316938 | LIQUID JET HEAD AND A LIQUID JET APPARATUS - A lower electrode 60 in a region opposite each of pressure generation chambers 12 is formed to have a width smaller than the width of the corresponding pressure generation chamber 12, and an upper surface and an end surface of the lower electrode 60 in a region corresponding to each of the pressure generation chambers 12 is covered with a piezoelectric material layer 70. An end surface of the piezoelectric material layer 70 forms a slope surface sloping downward toward the outside, an upper surface and an end surface of the piezoelectric material layer 70 in the region opposite each of the pressure generation chambers 12 are covered with an upper electrode 80, and a distance D1 between the upper surface of the lower electrode 60 and the upper surface of the piezoelectric material layer 70 and a distance D2 between the end surface of the lower electrode 60 and the end surface of the piezoelectric material layer 70 satisfy the relationship D2≧D1. | 12-29-2011 |
20120013686 | LIQUID-JET HEAD AND LIQUID-JET APPARATUS HAVING SAME - A liquid-jet head comprising a pressure generating chamber, which is supplied with a liquid via a liquid supply path and in which a nozzle orifice for jetting the liquid is formed, and a pressure generator for causing a pressure change within the pressure generating chamber, wherein when an inertance and a passage resistance of the liquid supply path are designated as M | 01-19-2012 |
20120019603 | LIQUID DISCHARGE HEAD AND MANUFACTURING METHOD THEREOF - The liquid discharge head comprises: a diaphragm; a first piezoelectric member which is formed on a first surface of the diaphragm, the first piezoelectric member driving the diaphragm; and a pressure chamber dividing wall which is formed on a second surface of the diaphragm opposite to the first surface, wherein the first piezoelectric member and the pressure chamber dividing wall are formed by a deposition method. | 01-26-2012 |
20120026249 | THIN-FILM FORMING APPARATUS, THIN-FILM FORMING METHOD, PIEZOELECTRIC-ELEMENT FORMING METHOD, DROPLET DISCHARGING HEAD, AND INK-JET RECORDING APPARATUS - A thin-film forming apparatus for forming a thin film on a substrate by using an ink-jet method includes an ink applying unit that applies an ink drop for thin-film formation to a predetermined area on a surface of the substrate; at least one laser light source for heating the ink drop thereby forming a thin film; and a laser-light irradiating unit that irradiates, with a laser light from the laser light source, a first spot positioned on a back side of the predetermined area of the substrate to which the ink drop has been applied. | 02-02-2012 |
20120026250 | METHOD OF MANUFACTURING A LIQUID JET HEAD AND A LIQUID JET APPARATUS - A method of manufacturing a liquid jet head includes depositing a lower electrode film on a passage forming substrate and patterning the lower electrode film into a predetermined pattern, forming a piezoelectric layer on the passage forming substrate, forming an intermediate film made of a conductive material on the piezoelectric layer, forming a protective film on the intermediate film and, using the protective film as a mask, patterning by etching the piezoelectric layer together with the intermediate film into a predetermined pattern, peeling off the protective film, and depositing an upper electrode film on the passage forming substrate and patterning the upper electrode film into a predetermined pattern. | 02-02-2012 |
20120038713 | PIEZOELECTRIC FILM AND METHOD OF MANUFACTURING SAME, PIEZOELECTRIC DEVICE AND LIQUID EJECTION APPARATUS - A piezoelectric film is constituted of a perovskite oxide represented as: Pb | 02-16-2012 |
20120044301 | INK-JET PRINT HEAD, INK-JET PRINTER USING THE SAME AND METHOD FOR MANUFACTURING INK-JET PRINT HEAD - According to one embodiment, an ink-jet print head comprises a support member including a flat portion with an ink supply aperture and an ink discharge aperture formed therein so as to circulate and supply ink, the flat portion including a recess, a base plate fitted in the recess of the support member, a nozzle plate laid over the base plate at a predetermined distance from the base plate and including a plurality of nozzles formed therein in a fixed direction, and an actuator disposed between the base plate and the nozzle plate and including a pressure chamber and a piezoelectric member, the pressure chamber being provided for each corresponding nozzle, and the piezoelectric member being provided to form a wall for the pressure chamber and configured to change capacity of the pressure chamber. | 02-23-2012 |
20120056944 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD FOR MANUFACTURING PIEZOELECTRIC ELEMENT - A first lead electrode containing nickel and chromium contacts a second upper electrode containing titanium. Here, since a difference between the normal electrode potential of nickel and chromium and the normal electrode potential of titanium is smaller than a difference between the normal electrode potential of nickel and chromium and the normal electrode potential of iridium, electric corrosion can be made difficult to occur as compared with the case where the first lead electrode containing nickel and chromium contacts a first upper electrode containing iridium. Therefore, a piezoelectric element can be obtained in which an increase in resistance due to the narrowing of the contact area between an upper electrode and a lead electrode for upper electrode or the separation of the lead electrode for upper electrode can be suppressed and which can be driven by a given voltage. | 03-08-2012 |
20120056945 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element according to an embodiment of the invention includes a first electrode containing a noble metal, a first multilayer composite disposed on the first electrode, a second multilayer composite disposed on the first electrode with a distance from the first multilayer composite, an oxide film partly disposed on the surface of the first electrode between the first multilayer composite and the second multilayer composite, and a covering layer. The covering layer covers the side surfaces of the first and second multilayer composites, and the oxide film and the surface of the first electrode between the first multilayer composite and the second multilayer composite. The first multilayer composite and the second multilayer composite each include a piezoelectric layer, and a second electrode over the piezoelectric layer. | 03-08-2012 |
20120062657 | PIEZOELECTRIC INKJET HEAD STRUCTURE - A piezoelectric inkjet head structure includes an upper cover plate, a lower cover plate, a piezoelectric actuating module, a nozzle plate and a seal layer. The piezoelectric actuating module includes an upper piezoelectric chip, a lower piezoelectric chip, a first electrode, a second electrode, a conductive layer and a plurality of flow channels. The entrances of the flow channels of the upper piezoelectric chip and the lower piezoelectric chip are separated from each other by the same spacing interval. The entrances of the flow channels of the upper piezoelectric chip and the entrances of the flow channels of the lower piezoelectric chip are arranged in a staggered form. During operation of the piezoelectric actuating module, ink liquid is introduced into the flow channels of the piezoelectric actuating module from the upper cover plate and the lower cover plate, and then ejected out of the nozzles. | 03-15-2012 |
20120069099 | TRANSDUCER HAVING AN IMPROVED ELECTRIC FIELD - A transducer including a dielectric material; a metal layer configured in a predetermined pattern having at least two electrodes; and a piezoelectric layer disposed underlying, between and overlying at least a portion of the metal layer and a portion of which abuts the dielectric material. | 03-22-2012 |
20120069100 | Ink-jet Print Head with Fast-acting Valve - Disclosed herein, a print head includes a reservoir, wherein the reservoir maintains fluid at a high hydrostatic pressure; a passage to receive the fluid from the reservoir, the passage including a fluid droplet ejection orifice; and a piezoelectric member positioned adjacent said passage, wherein the piezoelectric member may be activated to prevent flow of fluid through the passage. The piezoelectric member may be activated at a frequency greater than about 40 kilohertz, desirably greater than about 50 kilohertz, and even more desirably greater than about 100 kilohertz. | 03-22-2012 |
20120075388 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS HAVING THE SAME - A liquid ejecting head includes: a pressure generating chamber to which liquid is supplied through a liquid supply channel; a pressure generating unit that generates a variation in pressure in the pressure generating chamber; a nozzle opening that ejects the liquid discharged from the pressure generating chamber according to the variation in pressure to the outside; and a flow channel for circulation that is formed in the nozzle opening side rather than the pressure generating chamber and separates a part of the liquid discharged from the pressure generating chamber. When Ms, Mn, and Mc each are inertances of the liquid supply channel, the nozzle opening, and the flow channel for circulation, a relationship of Ms≧(1/Mn+1/Mc) | 03-29-2012 |
20120086757 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A piezoelectric element comprises a piezoelectric member made of a complex oxide and an electrode which contains platinum. The complex oxide contains potassium sodium niobate and bismuth ferrate. The molar ratio of the bismuth ferrate to the sum of the potassium sodium niobate and the bismuth ferrate is in the range of 3% to 10%. And the molar ratio of the sum of potassium and sodium to niobium is in the range of 103% to 115%. | 04-12-2012 |
20120086758 | PIEZOELECTRIC MATERIAL AND PIEZOELECTRIC ELEMENT - A piezoelectric element includes a first electrode, a piezoelectric film disposed on the first electrode, and a second electrode disposed on the piezoelectric film. The piezoelectric film is composed of piezoelectric material that is lead free and formed by mixing 100(1−x) % of material A having a spontaneous polarization of 0.5 C/m2 or greater at 25° C. and 100 x % of material B having piezoelectric characteristics and a dielectric constant of 1000 or greater at 25° C., wherein (1−x)Tc(A)+x Tc(B)≧300° C., where Tc(A) is the Curie temperature of the material A and Tc(B) is the Curie temperature of the material B. | 04-12-2012 |
20120098896 | DROPLET EJECTION HEAD AND METHOD OF MANUFACTURING DROPLET EJECTION HEAD - A droplet ejection head includes: a nozzle plate which has a nozzle aperture for ejecting droplets of liquid; a flow channel structure including a pressure chamber which contains the liquid and is connected to the nozzle aperture through a flow channel; and a pressure generating element which applies pressure to the liquid in the pressure chamber, wherein an ejection surface of the nozzle plate where the droplets of the liquid are ejected is made of a fluorine-containing DLC film. | 04-26-2012 |
20120120159 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A common electrode includes a plurality of individual sections arranged so as to correspond to pressure chambers that are divided by a plurality of slits, and a base section that joins one end of the individual sections. The individual sections on a base section side gradually widen in plain view. The common electrode has thin film sections at the individual sections and a thick film section at the base section, and the film thickness gradually increases from the thin film sections towards the thick film section in a region between the thin film sections and the thick film section. | 05-17-2012 |
20120120160 | PIEZOELECTRIC ACTUATOR HAVING EMBEDDED ELECTRODES - A piezoelectric actuator includes a thin film sheet, a first electrode, and a second electrode. The thin film sheet is to physically deform in response to an electric field induced within the thin film sheet. The first electrode is embedded within the thin film sheet. The second electrode is embedded within the thin film sheet, and is interdigitated in relation to the first electrode. The electric field is induced within the thin film sheet via application of a voltage across the first and the second electrodes. | 05-17-2012 |
20120133711 | METHOD FOR MANUFACTURING LIQUID-JETTING HEAD AND LIQUID-JETTING HEAD - A method for manufacturing a liquid-jetting head includes: providing a flow passage unit in which a plurality of jetting ports and a plurality of individual liquid flow passages are formed; providing a plurality of actuator units which are arranged to be adjacent to each other on a surface of the flow passage unit and each of which includes a plurality of actuators having individual electrodes corresponding to the individual liquid flow passages; providing a drive circuit for each of the actuator units which supplies a drive signal to each of the actuators; providing a plurality of wiring members each of which is fixed on one of the actuator units to electrically connect the actuator unit and the drive circuit; folding base materials of the wiring members; and joining the base materials to the actuator units after folding the base materials. | 05-31-2012 |
20120140001 | FIVE MEMBER RING STABILIZERS FOR QUINACRIDONE-TYPE PIGMENTS IN SOLID INK - A synergist for pigment in a solid ink having the following formula: | 06-07-2012 |
20120154490 | INJECTION HEAD MANUFACTURING METHOD AND INJECTION HEAD - A flow path regulating member for regulating an ink flow path leading into the channels is formed on the rear side of the head chip by exposure and development through lamination of the photo masks having an opening of a predetermined pattern, after a photosensitive resin film has been bonded on the rear side of the head chip by heat and pressure without using an adhesive; this head chip being characterized in that the channels, and drive walls made up of piezoelectric elements are arranged alternately, the apertures of the channels are arranged on the front side and rear side, respectively, and drive electrodes are formed in channels. | 06-21-2012 |
20120182356 | LIQUID DISCHARGE HEAD, METHOD OF MANUFACTURING LIQUID DISCHARGE HEAD, AND IMAGE FORMING DEVICE - A liquid discharge head includes a piezoelectric actuator. The piezoelectric actuator includes a piezoelectric member on which plural piezoelectric poles are formed, and the plural piezoelectric poles are formed to be inclined in a direction in which the plural piezoelectric poles are arranged. | 07-19-2012 |
20120182357 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element comprises a piezoelectric layer consisting of a complex oxide having a perovskite structure containing bismuth and iron and electrodes provided to the piezoelectric layer. The complex oxide further contains a first dopant element that is at least one selected from the group consisting of sodium, potassium, calcium, strontium and barium, and a second dopant element that is cerium. | 07-19-2012 |
20120182358 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element comprises a piezoelectric layer and an electrode which is provided with the piezoelectric layer. The piezoelectric layer comprises a complex oxide which has a perovskite structure including bismuth, iron, a first dopant element which is at least one type selected from a group formed from sodium, potassium, calcium, and strontium, and a second dopant element which is at least one type selected from a group formed from manganese, titanium, vanadium, niobium, and tin. | 07-19-2012 |
20120182359 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element comprises a piezoelectric layer consisting a complex oxide having a perovskite structure containing bismuth and iron and electrodes provided to the piezoelectric layer. The complex oxide further contains a first dopant element that is magnesium and a second dopant element that is at least one of manganese, titanium, vanadium, niobium and tin. | 07-19-2012 |
20120206543 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element comprises a piezoelectric layer comprising a mixed crystal including at least cerium, bismuth, iron, barium, and titanium and an electrode provided to the piezoelectric layer. The molar ratio of cerium to the total amount of cerium and bismuth in the piezoelectric layer is 0.03 or more and 0.10 or lower. | 08-16-2012 |
20120206544 | METHOD OF MANUFACTURING ELECTROMECHANICAL TRANSDUCER LAYER, METHOD OF MANUFACTURING ELECTROMECHANICAL TRANSDUCER ELEMENT, ELECTROMECHANICAL TRANSDUCER LAYER FORMED BY THE METHOD, ELECTROMECHANICAL TRANSDUCER ELEMENT, INKJET HEAD AND INKJET RECORDING APPARATUS - Disclosed is a method of manufacturing an electromechanical transducer layer on a surface of a substrate, including discharging a solution including a source material to form the electromechanical transducer layer from a nozzle of a nozzle plate to coat the solution on the surface of the substrate while applying voltage between the nozzle plate and the substrate to charge the nozzle plate at a first polarity and the substrate at a second polarity opposite to the first polarity such that a split droplet split from a main droplet which is coated on the surface of the substrate becomes charged at the second polarity and is attracted and collected by the nozzle plate; and applying a heat treatment to the substrate on which the solution is coated to crystallize the solution to form the electromechanical transducer layer. | 08-16-2012 |
20120212546 | PIEZOELECTRIC ACTUATOR, LIQUID EJECTION HEAD, AND LIQUID EJECTION APPARATUS - A piezoelectric actuator includes a vibrating plate having a base surface, a first electrode, a piezoelectric layer, and a second electrode which extends in a first direction. In the piezoelectric actuator, the second electrode has a first portion having a first width, a second portion having a second width which is smaller than the first width, and a third portion which connects the first portion and the second portion, the first electrode has a first side which forms an outer circumference of the first electrode on a plan view, and the third portion of the second electrode is arranged at an upper side of the first side of the first electrode and a third width of the third portion is made narrower from the first portion toward the second portion. | 08-23-2012 |
20120229576 | INKJET HEAD AND METHOD OF MANUFACTURING THE SAME - According to one embodiment, an inkjet head comprises a main body which is adhered onto a substrate with an adhesive layer. The substrate includes inflow parts that are opened to a mounting surface. Side surfaces of the main body, internal surfaces of the grooves, an end part of the adhesive layer, and the mounting surface are covered with a conductive layer. The conductive layer is provided with insulating patterns. The insulating patterns run between the grooves and extending to the mounting surface. | 09-13-2012 |
20120229577 | INK-JET HEAD AND METHOD OF MANUFACTURING INK-JET HEAD - According to one embodiment, an ink-jet head includes a substrate, a piezoelectric member, electrically conductive portions, a frame member, an insulating film, an electronic component and a protective agent. The piezoelectric member is mounted on the substrate and includes pressure chambers. The electrically conductive portions extend from the pressure chambers and are disposed on the substrate. The frame member inside which the piezoelectric member is disposed is attached to the substrate from above the electrically conductive portions. The insulating film covers the piezoelectric member, the frame member, and a part of the electrically conductive portions. The electronic component is connected to the electrically conductive portions. The protective agent covers an end portion of the insulating film located between the frame member and the electronic component and the electrically conductive portions between the electronic component and the end portion of the insulating film. | 09-13-2012 |
20120236079 | INKJET HEAD AND METHOD OF MANUFACTURING THE SAME - According to one embodiment, an inkjet head comprises a substrate, and a nozzle plate. The substrate includes grooves. The nozzle plate includes nozzles that are formed by laser processing to communicate with the grooves. Electrodes are formed on respective internal surfaces of the grooves. Each of the electrodes is formed of a plurality of metal layers, and includes a flat surface that is apart from the internal surfaces of the grooves. A first inorganic film is superposed on the surfaces of the electrodes. A second inorganic film is superposed on the first inorganic film. | 09-20-2012 |
20120236080 | LIQUID EJECTION HEAD AND IMAGE FORMING APPARATUS INCLUDING THE LIQUID EJECTION HEAD - A liquid ejection head includes a channel plate, a diaphragm member, and a piezoelectric member. The channel plate includes a separate liquid chamber, a fluid resistance portion, and a liquid introducing portion. The diaphragm member has a thin layer and a thick layer. The thin layer forms a wall face of each of the separate liquid chamber, the resistance portion, and the introducing portion and includes a vibration area facing the separate liquid chamber. The piezoelectric member is arranged to deform the vibration area and has a portion opposing the introducing portion. The thin layer has a thin portion forming the wall face of the introducing portion. The thick layer has a thick portion formed along the longitudinal direction of the separate liquid chamber on a first face opposite a second face opposing the introducing portion. In a plan view, the thin portion is divided by the thick portion. | 09-20-2012 |
20120236081 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element including: a first electrode, a piezoelectric layer formed above the first electrode to have a longitudinal direction and a transverse direction, and a second electrode formed above the piezoelectric layer, wherein at least a part of a side surface of the piezoelectric layer in the transverse direction is a concavo-convex surface, and a width of the piezoelectric layer in the transverse direction from the second electrode to the first electrode changes with the concavo-convex surface. | 09-20-2012 |
20120236082 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND MANUFACTURING METHOD OF LIQUID EJECTING HEAD - A case member includes a first surface and a second surface which have different heights that are adhered to a head main body, that is, another member, and an absorption member that is made of a material having elasticity and absorbs an adhesive is interposed between the second surface and a protection substrate while the first surface is adhered to a communication plate. | 09-20-2012 |
20120242754 | PRODUCTION METHOD OF PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A production method of a piezoelectric element which includes an insulating film, a first electrode provided on the insulating film, a piezoelectric layer that is provided on the first electrode and is made of a composite oxide having a perovskite structure containing lead, zirconium, and titanium, and a second electrode provided on the piezoelectric layer on the opposite side to the first electrode, includes: forming and patterning the first electrode on the insulating film; forming island-shaped lanthanum nickel oxide portions over the insulating film and the first electrode; and forming a piezoelectric precursor film over the insulating film and the first electrode, and forming the piezoelectric layer having a piezoelectric film that is crystallized by baking the piezoelectric precursor film. | 09-27-2012 |
20120242755 | METHOD FOR MANUFACTURING PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element is manufactured in a method including forming an adhesion layer of zirconium above a zirconium oxide insulating film, forming a first electrode above the adhesion layer, forming a piezoelectric layer of a complex oxide containing bismuth above the first electrode, and forming a second electrode above the piezoelectric layer. | 09-27-2012 |
20120249684 | LIQUID EJECTION HEAD UNIT AND LIQUID EJECTION APPARATUS - Ink solvent having reached a buffer chamber through a manifold and a flexible portion is discharged in a direction different from the direction in which a holder opening is provided. Accordingly, the ink solvent is less likely to reach a connecting portion of a lead electrode and a COF substrate through the holder opening, a through-hole, and a support hole, through which the COF substrate extends. Thus, it is possible to make the solvent take a long time to reach the connecting portion, achieving an ink jet recording head in which the time taken to cause poor contact between the lead electrode and the COF substrate occurs is longer than that in the case where the solvent is discharged in the same direction as the direction in which the holder opening is provided. | 10-04-2012 |
20120268533 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element comprises a first electrode including platinum, a piezoelectric layer disposed above the first electrode, made of a complex oxide having a perovskite structure containing at least bismuth, and a second electrode disposed above the piezoelectric layer. An oxide containing bismuth and platinum is disposed at the interface of the piezoelectric layer with the first electrode. | 10-25-2012 |
20120287208 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes: a pressure generation unit that is driven by application of a driving signal and causes a change in pressure on a liquid inside a pressure chamber; a liquid ejecting head that ejects the liquid toward a landing target from a nozzle when the pressure generation unit is driven; a charging member that performs charging by friction with another material; a liquid droplet collection member that collects at least a part of a liquid droplet which has not been landed on the landing target; and an electrode member that faces at least a part of the charging member with a gap formed between the electrode member and the charging member. The liquid droplet collection member is electrically connected to the electrode member and a charge with the same polarity as a charged polarity of the charging member is induced to the liquid droplet collection member. | 11-15-2012 |
20130002767 | ELECTROMECHANICAL TRANSDUCER ELEMENT, DROPLET DISCHARGE HEAD, AND DROPLET DISCHARGE DEVICE - Disclosed is an electromechanical transducer element that includes an electromechanical transducer film formed of a complex oxide (PZT) including lead (Pb), zirconium (Zr), and titanium (Ti). The electromechanical transducer film is formed by laminating plural PZT thin films until a thickness of the formed electromechanical transducer film becomes a predetermined thickness. When an atomic weight ratio (Pb/(Zr+Ti)) of average Pb included in the formed electromechanical transducer film is denoted by Pb(avg) and an atomic weight ratio (Pb/(Zr+Ti)) of Pb in any one of laminate interfaces of the plural PZT thin films is denoted by Pb(interface), the Pb(avg) is greater than or equal to 100 atomic percentage (at %) and less than or equal to 110 atomic percentage (at %), and a fluctuation ratio ΔPb=Pb(avg)−Pb(interface) of Pb in the laminate interface is less than or equal to 20 percent. | 01-03-2013 |
20130002768 | INKJET HEAD AND METHOD OF MANUFACTURING THE SAME - An inkjet head includes a substrate, a piezoelectric member provided on the substrate and having predetermined length, plural pressure chamber grooves provided on the piezoelectric member in a longitudinal direction, opposed walls forming the pressure chamber grooves being configured to function as driving elements that eject ink, a chamber groove provided along the longitudinal direction of the piezoelectric member, the chamber groove being formed on the substrate continuously to a slope of the piezoelectric member, an insulating member provided in the chamber groove, a wire through which a signal for driving the walls of the pressure chamber grooves passes, the wire being formed on the substrate and the insulating member, a cover member opposed to the substrate and configured to cover the piezoelectric member and the chamber groove, and plural nozzles configured to pierce through the cover member, respectively communicate with the pressure chamber grooves, and discharge the ink. | 01-03-2013 |
20130016162 | LIQUID DROPLET DISCHARGE HEAD AND IMAGE FORMING APPARATUS INCLUDING SAMEAANM Yasu; KazukiAACI KanagawaAACO JPAAGP Yasu; Kazuki Kanagawa JPAANM Sasaki; ShinoAACI KanagawaAACO JPAAGP Sasaki; Shino Kanagawa JP - A liquid droplet discharge head includes: a liquid chamber including an inner wall; a plurality of nozzles on a part of the inner wall; a diaphragm to change a pressure inside the liquid chamber; a piezoelectric element to displace the diaphragm; a drive voltage generator to generate a pulse voltage for normal driving; a micro-drive voltage generator to generate a pulse voltage for micro-driving; a voltage applying means to apply a voltage waveform including each pulse voltage to the piezoelectric element; and a nozzle activation ratio processor to calculate a nozzle activation ratio based on drive data for discharging liquid droplets from the nozzle. Based on the nozzle activation ratio, the micro-drive voltage generator generates a pulse voltage for the micro-driving including a peak voltage corresponding to the nozzle activation ratio, and the voltage applying means applies an appropriate voltage waveform to the piezoelectric element. | 01-17-2013 |
20130016163 | PIEZOELECTRIC FILM, INK JET HEAD, ANGULAR VELOCITY SENSOR AND PIEZOELECTRIC GENERATING ELEMENT - The purpose of the present invention is to provide a BNT-BT piezoelectric film having a higher crystalline orientation, a higher piezoelectric constant, and a higher ferroelectric property. | 01-17-2013 |
20130021412 | DROPLET EJECTION HEAD, METHOD OF MANUFACTURING DROPLET EJECTION HEAD, AND DROPLET EJECTION APPARATUS - A droplet ejection head that is attachable to and removable from a droplet ejection apparatus, includes: a nozzle plate having multiple nozzle holes to eject droplets; an individual-channel substrate in which multiple individual-liquid-chambers to supply liquid to the nozzle holes are formed; a common-channel substrate to supply liquid to the individual-channel substrate; a base plate made of metal and including a first positioning part to be engaged with a part of the droplet ejection apparatus at a given position to perform positioning with respect to the droplet ejection apparatus in a direction along an opening surface of the nozzle plate at which the nozzle holes are opened; and a housing made of resin and including a second positioning part to perform positioning with respect to the droplet ejection apparatus in a direction intersecting with the opening surface. | 01-24-2013 |
20130063528 | FLUID EJECTION DEVICE WITH CIRCULATION PUMP - A fluid ejection device includes a fluid recirculation channel, and a drop generator disposed within the channel. A fluid slot is in fluid communication with each end of the channel, and a piezoelectric fluid actuator is located asymmetrically within the recirculation channel to cause fluid flow from the fluid slot, through the recirculation channel and drop generator, and back to the fluid slot. | 03-14-2013 |
20130070027 | INKJET HEAD AND INKJET RECORDING APPARATUS - According to one embodiment, an inkjet head includes actuators configured to pressurize ink. The actuators include piezoelectric elements provided on an insulating layer, first electrodes electrically connected to the piezoelectric elements, and second electrodes connected to the piezoelectric elements and configured to hold the piezoelectric elements in cooperation with the first electrodes. The first electrodes of all the actuators are electrically connected to a common first energization pattern. The second electrodes of all the actuators are individually electrically connected to second energization patterns. The first energization pattern and the second energization patterns are separated from each other without overlapping each other on the insulating layer. | 03-21-2013 |
20130070028 | METHOD OF MANUFACTURING ELECTROMECHANICAL TRANSDUCER ELEMENT, ELECTROMECHANICAL TRANSDUCER ELEMENT, DISCHARGING HEAD, AND INKJET RECORDING DEVICE - Disclosed is a method of manufacturing an electromechanical transducer element including a first process of hydrophobizing a first area of an electrode by forming a self-assembled monolayer film; a second process of applying a sol-gel solution onto a predetermined second area of the electrode so as to produce a complex oxide; a third process of producing the complex oxide by calcining the electrode; a fourth process of acid-washing the electrode on which the complex oxide has been produced; a fifth process of hydrophobizing the first area of the acid-washed electrode by forming the self-assembled monolayer film; a sixth process of applying the sol-gel solution onto the predetermined second area; and a seventh process of producing the complex oxide by calcining the electrode. | 03-21-2013 |
20130070029 | ELECTROMECHANICAL CONVERSION ELEMENT, LIQUID DROP EJECTION HEAD, LIQUID DROP EJECTION DEVICE, AND IMAGE FORMING APPARATUS - Disclosed is an electromechanical conversion element, including an electromechanical conversion film including a PIT, an upper electrode formed on a top of the electromechanical conversion film and including a first strontium ruthenium oxide, and a lower electrode formed on a bottom of the electromechanical conversion film and including a second strontium ruthenium oxide, wherein Sr-pzt/Sr-sr≦0.01, wherein Sr-pzt is a SIMS intensity for a secondary ion of strontium of the PZT at a position of ½ of a thickness of the electromechanical conversion film and Sr-sr is a SIMS intensity for a secondary ion of strontium of the second strontium ruthenium oxide at a position of ½ of a thickness of the lower electrode. | 03-21-2013 |
20130076838 | INKJET HEAD - According to one embodiment, an inkjet head includes a mask part which covers a periphery of an actuator part in a state where a nozzle hole is exposed to outside and a peripheral edge part of which is opposite to an opening peripheral edge part of a frame part at other end while a gap is kept, and the gap between the peripheral edge part of the mask part and the opening peripheral edge part of the frame part at the other end is sealed with a seal agent having thermal insulation properties. | 03-28-2013 |
20130083132 | PIEZOELECTRIC ACTUATOR, LIQUID-JETTING APPARATUS, AND METHOD FOR PRODUCING PIEZOELECTRIC ACTUATOR - A piezoelectric actuator is provided, including a piezoelectric layer arranged on one surface of a base member; a plurality of driving electrodes arranged on one surface of the piezoelectric layer; a plurality of leading electrodes led from the driving electrodes to apply a voltage to the driving electrodes; and a low dielectric layer arranged between the piezoelectric layer and the leading electrode, and having a dielectric constant lower than that of the piezoelectric layer. Surroundings of driving areas of the piezoelectric layer including areas facing the plurality of driving electrodes are joined to the base member. The plurality of leading electrodes extend to outside of the driving areas, respectively, some of the plurality of leading electrodes being led in a predetermined first direction, and others of the plurality of leading electrodes being led in a second direction different from the first direction. | 04-04-2013 |
20130083133 | PIEZOELECTRIC ELEMENT, ACTUATOR DEVICE, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element includes a lower electrode film disposed on a substrate, a piezoelectric layer | 04-04-2013 |
20130088548 | LIQUID DISCHARGE HEAD AND METHOD FOR MANUFACTURING LIQUID DISCHARGE HEAD - A liquid discharge head includes piezoelectric members including: a pressure chamber applying a pressure for discharging liquid to liquid; a first electrode provided on an inner surface side of the pressure chamber; and a second electrode provided outside the pressure chamber, the piezoelectric members being arranged in a first direction intersecting with an ink flow direction and in a second direction crossing the ink flow direction and the first direction so that the flow directions of the liquid flowing through the pressure chamber of the piezoelectric members are arranged along one another. The head includes first common wiring lines connected to the first electrodes arranged in the first direction; and second common wiring lines connected to the second electrodes | 04-11-2013 |
20130100211 | INKJET RECORDING HEAD - An inkjet recording head of an embodiment includes: an elastic film provided to form a part of a pressure-generating chamber connected to a nozzle opening; and a piezoelectric film-laminated part, an end thereof being fixed to the elastic film, a central part thereof facing the elastic film having an air gap in-between, the piezoelectric film-laminated part including a lower electrode, a piezoelectric film, and an upper electrode. | 04-25-2013 |
20130113863 | LIQUID APPLICATION DEVICE, LIQUID APPLICATION METHOD, AND NANOIMPRINT SYSTEM - A liquid application device includes: a liquid discharge head having a structure in which nozzles for performing droplet ejection of a functional liquid onto a substrate are aligned in a row in a predetermined direction, and including liquid chambers connected to the nozzles respectively and piezoelectric elements which are provided correspondingly to the liquid chambers and serve to pressurize the liquid in the liquid chambers; a relative movement unit for causing relative movement between the substrate and the liquid discharge head; and a droplet ejection control unit for operating the piezoelectric elements so as to cause the liquid to land discretely on the substrate, and controlling operation of the piezoelectric elements according to each of groups formed by grouping the nozzles correspondingly to the structure of the liquid discharge head. | 05-09-2013 |
20130120503 | LIQUID EJECTION APPARATUS AND DRIVE METHOD FOR INKJET HEAD - A liquid ejection apparatus includes: a gas chamber surrounding a piezoelectric element in an inkjet head; and a dry gas supply device configured to start supply of dry gas to the gas chamber before supply of electric power to the inkjet head is started, to continue the supply of the dry gas while the supply of the electric power to the inkjet head is continued, and to halt the supply of the dry gas after the supply of the electric power to the inkjet head is halted. While the dry gas supply device halts the supply of the dry gas to the gas chamber, a dry gas supply flow channel opening and closing device is closed to disconnect the dry gas supply device and the gas chamber, and a gas return flow channel opening and closing device is closed to disconnect the gas chamber and the external air. | 05-16-2013 |
20130120504 | INKJET PRINTHEAD - An inkjet printhead includes multiple sets each of which includes a nozzle, pressure chamber, and actuator; a circuit board; and a connection member. The circuit board includes a wire, through hole via, and ink channel. The connection member, which connects the wire to a driving unit, is provided outside of an array area where the sets are two-dimensionally arrayed. The number of the nozzle rows is N, and each row includes M nozzles (M and N: integer of 2 or more). The through hole vias corresponding to the nozzles of n nozzle row of the N nozzle rows are provided inside of the array area (n: 1≦n05-16-2013 | |
20130127953 | INK FOR INK-JET RECORDING APPARATUS AND METHOD FOR FORMING IMAGE - An ink for an ink-jet recording apparatus contains water, a pigment, a resin, 1,3-propanediol, and an organic solvent. The resin has a weight-average molecular weight of 30,000 to 150,000. The content of the resin is 1.5% to 6.0% by mass with respect to the mass of the ink. The total content (P+Q) of the content of the glycerol (P) and the content of the 1,3-propanediol (Q) in the ink is 15% to 40% by mass with respect to the mass of the ink. The mass ratio (P/Q) is 0.25 to 1.00. | 05-23-2013 |
20130127954 | PIEZOELECTRIC ELEMENT, LIQUID-EJECTING HEAD, AND LIQUID-EJECTING APPARATUS - A piezoelectric element includes a piezoelectric layer and electrodes provided to the piezoelectric layer. The piezoelectric layer consists of a complex oxide containing bismuth, cerium, iron and cobalt and the molar ratio of cobalt to the total of iron and cobalt is 0.125 or more and 0.875 or less. | 05-23-2013 |
20130135399 | PIEZOELECTRIC ACTUATOR, INKJET HEAD ASSEMBLY AND METHOD OF MANUFACTURING THE SAME - There are provided a piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same. The piezoelectric actuator includes: upper and lower electrodes providing driving voltage; and a piezoelectric substance formed between the upper and lower electrodes through solidifying a liquid piezoelectric substance, and providing driving force to ink in each of a plurality of pressure chambers provided in an inkjet head, wherein the piezoelectric substance includes a plurality of branch portions individually provided on an upper portion of each of the plurality of pressure chambers and a large area portion integrally provided while being connected to each of the plurality of branch portions at one ends of the plurality of branch portions. | 05-30-2013 |
20130141495 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND PIEZOELECTRIC ELEMENT - An electrode is provided with a lanthanum nickelate film which is formed through a chemical solution deposition method using a lanthanum nickelate film forming composition which is obtained by heating a mixed solution obtained by mixing at least lanthanum acetate, nickel acetate, acetic acid, and water, a piezoelectric layer is provided on the lanthanum nickelate film and is formed of a complex oxide having a perovskite structure which contains at least Pb, Ti, and Zr, and a half-width (θ) of a peak derived from a (100) plane and/or a peak derived from a (001) plane measured using an X-ray rocking curve method is 6.0 degrees or less. | 06-06-2013 |
20130147880 | PIEZOELECTRIC MATERIAL AND PIEZOELECTRIC ELEMENT - A piezoelectric element includes a first electrode, a piezoelectric film disposed on the first electrode, and a second electrode disposed on the piezoelectric film. The piezoelectric film is composed of piezoelectric material that is lead free and formed by mixing 100 (1-x) % of material A having a spontaneous polarization of 0.5 C/m2 or greater at 25° C. and 100 x % of material B having piezoelectric characteristics and a dielectric constant of 1000 or greater at 25° C., wherein (1-x) Tc (A)+x Tc (B) >300° C., where Tc (A) is the Curie temperature of the material A and Tc (B) is the Curie temperature of the material B. | 06-13-2013 |
20130162725 | LIQUID EJECTION HEAD - A liquid ejection head includes a piezoelectric block body having a plurality of pressure chambers arranged two-dimensionally to face respective ejection ports, a plurality of air chambers arranged adjacently relative to the plurality of pressure chambers, and a plurality of flow channels arranged along the pressure chambers. The pressure chambers are deformed by expansion and contraction of piezoelectric members disposed between the pressure chambers and the air chambers so as to drive the liquid stored therein to flow toward the ejection ports. A connection flow channel is provided at the ejection port side of the piezoelectric block body sp as to make each of the pressure chambers communicate with at least one of the flow channels for partial recirculation of the ink. | 06-27-2013 |
20130176364 | ELECTROMECHANICAL TRANSDUCER ELEMENT, LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, AND IMAGE FORMING APPARATUS - Disclosed is an electromechanical transducer element including a first electrode disposed on a substrate; an electromechanical transducer film disposed on a first portion of the first electrode; and a second electrode disposed on a second portion of the electromechanical transducer film, wherein an actuator portion formed by laminating the substrate, the first electrode, the electromechanical transducer film, and the second electrode has a stiffness such that, in a cross section of the actuator portion, the stiffness gradually increases from an end portion of the actuator portion to a center portion of the actuator portion. | 07-11-2013 |
20130182045 | IMAGE FORMING METHOD AND INK COMPOSITION - The present invention provides an image forming method and an ink composition used in the method by which deterioration of a head plate which is formed of silicon is suppressed and more precise images are stably formed, where ink containing an inorganic silicate compound is ejected to form an image from an inkjet head having a nozzle plate where SiO | 07-18-2013 |
20130194351 | INKJET PRINT HEAD - In an inkjet print head an actuation chamber substantially extends in a first direction and the actuation chamber is associated with a piezo actuator arranged to generate a pressure wave in the actuation chamber. The pressure wave propagates in said first direction. A nozzle is associated with the actuation chamber such that a droplet may be expelled through the nozzle upon generation of the pressure wave in the actuation chamber. A reservoir is in fluid communication with the actuation chamber via an inlet and an outlet of the actuation chamber. A pump means is provided for pumping ink from the reservoir, via the inlet, through the actuation chamber, via the outlet back into said reservoir. The print head is provided with a means for reflecting the pressure wave at the outlet of the actuation chamber for enabling to generate a sufficient pressure at the nozzle for expelling the droplet. | 08-01-2013 |
20130208054 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, PIEZOELECTRIC ELEMENT, AND METHOD FOR EVALUATING PIEZOELECTRIC LAYER - A liquid ejecting head includes a piezoelectric element including a piezoelectric layer made of a piezoelectric material and an electrode disposed on the piezoelectric layer. The piezoelectric material is such that when a diamond conical indenter having an angle α of 136° between opposite faces is pressed into the piezoelectric layer at a load of 5 gf for 5 seconds to form cracks extending from an indentation, using a micro Vickers hardness meter, the length of the cracks from four corners of the indentation is 15 μm or less. | 08-15-2013 |
20130222482 | PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS - The piezoelectric element includes, on a substrate: a piezoelectric film; and a pair of electrodes provided in contact with the piezoelectric film; in which the piezoelectric film contains a perovskite-type metal oxide represented by the general formula (1) as a main component: | 08-29-2013 |
20130222483 | METHOD OF MANUFACTURING LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD OF MANUFACTURING PIEZOELECTRIC ELEMENT - Provided is a method of manufacturing a liquid ejecting head including a pressure generating chamber communicating with a nozzle opening and a piezoelectric element including a piezoelectric layer and an electrode, the method including: forming a first piezoelectric precursor film containing Bi and Fe, or Ba and Ti; forming a first piezoelectric layer by heating and crystallizing the first piezoelectric precursor film; forming a second piezoelectric precursor film further containing at least one selected from Li, B, and Cu on the first piezoelectric layer, in addition to Bi and Fe, or Ba and Ti contained in the first piezoelectric precursor film; and forming the piezoelectric layer by heating and crystallizing the first piezoelectric layer and the second piezoelectric precursor film. | 08-29-2013 |
20130229464 | METHOD OF MANUFACTURING LIQUID EJECTING HEAD, PIEZOELECTRIC ELEMENT, AND LIQUID EJECTING DEVICE - There is provided a method of manufacturing a liquid ejecting head equipped with a piezoelectric layer and an electrode provided on the piezoelectric layer, the method including forming the piezoelectric layer, which is made from a complex oxide having a perovskite structure containing Bi, Fe, Ba and Ti, and which has a residual stress of | 09-05-2013 |
20130242003 | LIQUID EJECTION HEAD AND METHOD OF MANUFACTURING LIQUID EJECTION HEAD - A liquid ejection head includes a plurality of ejection orifices which eject a liquid, a plurality of pressure chambers which store the liquid ejected from the ejection orifices and eject the liquid from the ejection orifices in accordance with expansion and contraction of an inner wall of the pressure chambers, and a plurality of recess portions which are formed around the pressure chambers, wherein a piezoelectric member is present between at least one of the recess portions and the pressure chambers. | 09-19-2013 |
20130250005 | INK-JET HEAD AND METHOD OF MANUFACTURING INK-JET HEAD - According to one embodiment, an ink-jet head includes an insulated substrate, a plurality of piezoelectric elements which are formed on the insulated substrate in the form of a line, a pressure chamber formed between the two adjacent piezoelectric elements to which ink is supplied, an electrode formed on a surface of the piezoelectric element and a surface of the insulated substrate, an organic protection film to cover a face of the electrode contacting the ink, a hydrophilic film which is formed to cover the organic protection film at a temperature of not more than 100° C., a frame which is provided on the electrode on the insulated substrate to surround the line of the piezoelectric elements, and a nozzle plate provided on the frame having nozzles each opening into the pressure chamber. | 09-26-2013 |
20130250006 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, PIEZOELECTRIC ELEMENT, AND METHOD FOR MANUFACTURING THE SAME - A liquid ejecting head is provided with a piezoelectric element having a piezoelectric layer and a first electrode and a second electrode provided on the piezoelectric layer, in which the piezoelectric layer contains a buffer layer provided on the first electrode and having a perovskite structure containing bismuth, iron, and at least one of zinc and nickel and a complex oxide layer provided on the buffer layer and having a perovskite structure containing bismuth, iron, barium, and titanium. | 09-26-2013 |
20130265370 | INK JET PRINT HEAD AND FABRICATION METHOD THEREOF - An ink jet print head includes a substrate in which a pressure chamber is formed, a vibration film configured to define the pressure chamber and deformed to change a volume of the pressure chamber, a lower electrode formed on the vibration film, a piezoelectric film formed on the lower electrode, and an upper electrode formed on the piezoelectric film and having a periphery receding inwardly relative to a periphery of the piezoelectric film. | 10-10-2013 |
20130278681 | PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, ULTRASONIC MOTOR, AND DUST REMOVING DEVICE - There is provided a lead-free piezoelectric ceramic having a high and stable piezoelectric constant and a high and stable mechanical quality factor in a wide operating temperature range. A method for manufacturing the lead-free piezoelectric ceramic is also provided. the general formula (1) | 10-24-2013 |
20130286106 | LIQUID DROPLET JETTING APPARATUS AND PIEZOELECTRIC ACTUATOR - A liquid droplet jetting apparatus includes a flow passage structural body having a nozzle and a pressure chamber communicated with the nozzle, and a piezoelectric actuator provided on the flow passage structural body to apply jetting energy to a liquid inside the pressure chamber. The piezoelectric actuator has a piezoelectric layer arranged to face the pressure chamber, a low-potential electrode provided on the piezoelectric layer, and a high-potential electrode provided on the piezoelectric layer and to which a higher potential is applied than to the low-potential electrode. The high-potential electrode has a first electrode layer arranged to contact with the piezoelectric layer and formed of gold, and a second electrode layer stacked on the first electrode layer to extend in a predetermined direction, having a width shorter than that of the first electrode layer, and formed of a conductive material more likely to cause migration than gold. | 10-31-2013 |
20130300806 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD FOR PRODUCING PIEZOELECTRIC ELEMENT - A piezoelectric element includes a substrate; a first conductive layer disposed on or above the substrate; a piezoelectric layer covering a top and a side of the first conductive layer; a relaxing layer disposed on or above the piezoelectric layer and along an edge of a top surface of the piezoelectric layer; and a second conductive layer covering at least the relaxing layer and the piezoelectric layer. | 11-14-2013 |
20130335484 | LASER WELDED BONDING PADS FOR PIEZOELECTRIC PRINT HEADS - An ink jet print head can be formed using a laser to melt a plating layer interposed between a piezoelectric actuator and a circuit layer bump. The plating layer can be formed on the circuit layer bump, the piezoelectric actuator, or both, and a laser beam output by the laser is used to melt the plating layer to provide a laser weld. In another embodiment, the circuit layer bump or the trace itself functions as the plating layer, which is melted using a laser to provide the laser weld. | 12-19-2013 |
20130335485 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head that includes a fluid channel formation substrate and pressure generation units. The fluid channel formation substrate is made of a silicon single crystal substrate having a crystal face orientation of. The fluid channel formation substrate has a plurality of separate flow channels that include at least pressure generation chambers demarcated by partition walls, each of the pressure generation chambers being in communication with a nozzle opening that ejects liquid drops. The fluid channel formation substrate further has a communication portion that is in communication with each of the separate flow channels. The pressure generation units are provided so as to correspond to the pressure generation chambers and generate a pressure change in the pressure generation chambers so as to cause ejection of liquid drops. | 12-19-2013 |
20130335486 | PIEZOELECTRIC ACTUATOR, LIQUID DISCHARGE HEAD, AND RECORDING DEVICE - A piezoelectric actuator has a satisfactory electrical connection of a common electrode and a surface electrode without increasing the size of the piezoelectric actuator, as well as a liquid discharge head and a recording device. The piezoelectric actuator includes: a ceramic substrate which is long in one direction and includes a vibrating plate, a common electrode disposed on the vibrating plate and a piezoelectric ceramic layer disposed on the common electrode and having a plurality of first through holes connected to the common electrode; a plurality of individual electrodes disposed in a region of the piezoelectric ceramic layer opposed to the common electrode; and a plurality of first surface electrodes respectively disposed inside a plurality of the first through holes in the piezoelectric ceramic layer and on a circumference of a plurality of the first through holes. | 12-19-2013 |
20140015902 | INKJET RECORDING APPARATUS - An inkjet recording apparatus comprises an inkjet recording head configured to eject an ink droplet from a nozzle by utilizing micro vibrations of a piezoelectric element; and a recording-head driving circuit configured to apply a drive voltage to the piezoelectric element. And, in the apparatus, the recording-head driving circuit includes a D/A converter configured to generate an analog voltage from and corresponding to digital data input to the D/A converter, and a reference-voltage generating circuit configured to generate a reference voltage of the D/A converter, and the reference-voltage generating circuit is configured to be capable of controlling a manner in which the reference voltage falls when an anomaly occurs to the inkjet recording apparatus. | 01-16-2014 |
20140028759 | LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS - A recording head that is configured to eject ink containing tabular particles from nozzles includes pressure chambers, a pressure generating unit that generates pressure change in the pressure chambers, a reservoir that communicates with the pressure chambers, and an ink supply path that connects the pressure chambers and the reservoir, wherein a plurality of protrusions are formed on an inclined surface which is continuous with a wall of the pressure chambers and a wall of the ink supply paths at the boundary between the pressure chambers and the ink supply paths where a flow path cross-sectional area changes, and the plurality of protrusions project into the flow path from the wall surface. | 01-30-2014 |
20140036004 | PIEZOELECTRIC FILM AND METHOD OF MANUFACTURING THE PIEZOELECTRIC FILM, INK JET HEAD, METHOD OF FORMING IMAGE BY THE INK JET HEAD, ANGULAR VELOCITY SENSOR, METHOD OF MEASURING ANGULAR VELOCITY BY THE ANGULAR VELOCITY SENSOR, PIEZOELECTRIC GENERATING ELEMENT, AND METHOD OF GENERATING ELECTRIC POWER USING THE PIEZOELECTRIC GENERATING ELEMENT - In order to provide a non-lead piezoelectric film having high crystalline orientation, low dielectric loss, high polarization-disappear temperature, and high piezoelectric constant, the present invention is a piezoelectric film comprising: a Na | 02-06-2014 |
20140043399 | INKJET HEAD AND METHOD OF MANUFACTURING INKJET HEAD - An inkjet head including:
| 02-13-2014 |
20140049582 | ELECTRO-MECHANICAL TRANSDUCER ELEMENT, LIQUID DROPLET EJECTING HEAD, IMAGE FORMING APPARATUS, AND ELECTRO-MECHANICAL TRANSDUCER ELEMENT MANUFACTURING METHOD - An electro-mechanical transducer element is disclosed. The electro-mechanical transducer element includes a first electrode formed on a substrate; an electro-mechanical transducer film formed on at least a part of the first electrode; and a second electrode formed on at least a part of the electro-mechanical transducer film. In at least one cross section of the electro-mechanical transducer film, a film thickness distribution shape is convex to the second electrode side. | 02-20-2014 |
20140055530 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a pressure generation chamber to which ink containing a flat plate-like particle is filled, a piezoelectric element generating pressure change on the ink in the pressure generation chamber, and a nozzle plate having a nozzle for discharging the ink from the pressure generation chamber due to the pressure change. The nozzle includes a first nozzle portion at an ink discharge surface side, and a second nozzle portion communicating with the first nozzle portion and formed at the pressure generation chamber side. When an opening diameter of the first nozzle portion at the discharge surface side is φ1 and an opening diameter of the second nozzle portion at the pressure generation chamber side is φ2, the nozzle satisfies φ2/φ1≧1.4. | 02-27-2014 |
20140063129 | LIQUID JETTING APPARATUS, PIEZOELECTRIC ACTUATOR, AND METHOD FOR PRODUCING THE LIQUID JETTING APPARATUS - A liquid jetting apparatus includes a channel unit in which a liquid channel including a nozzle for jetting a liquid is formed, and a piezoelectric actuator provided on the channel unit and configured to apply jetting energy to the liquid inside the liquid channel. The piezoelectric actuator has a piezoelectric element and a wiring substrate in which a first electrode and a wire electrically connected to the first electrode are formed and which is joined to one surface of the piezoelectric element. The first electrode is configured to make contact with the piezoelectric element. | 03-06-2014 |
20140071206 | LIQUID JET HEAD AND A LIQUID JET APPARATUS - A lower electrode | 03-13-2014 |
20140092175 | REDUCED MECHANICAL COUPLING WITH STRUCTURED FLEX CIRCUITS - An actuator assembly including a flexible printed circuit and a method for making such an actuator assembly are provided. The flexible printed circuit includes a body having a top side and a bottom side, with the body defining a plurality of bumps extending from the bottom side. A first bump of the plurality of bumps is disposed adjacent to a second bump of the plurality of bumps, and the body further defines at least one relief configured to reduce movement of the second bump caused by movement of the first bump. The flexible printed circuit also includes a plurality of contact pads disposed on the bottom side of the body at least partially at the plurality of bumps, with the plurality of contacts pads being configured to be electrically coupled to a power source and to a piezoelectric transducer. | 04-03-2014 |
20140092176 | LIQUID EJECTION HEAD, LIQUID EJECTION DEVICE - A liquid ejection head including a piezoelectric element having a piezoelectric layer and electrodes The piezoelectric layer is 3 μm or less in thickness. The piezoelectric layer is made of a piezoelectric material including bismuth manganate ferrate and barium titanate. The piezoelectric layer is preferentially oriented with the (110) plane. | 04-03-2014 |
20140098164 | INKJET INK WITH NON-SWELLABLE LATEX PARTICLES - An inkjet ink includes a non-polar carrier, a colorant dispersed in the non-polar carrier, a dispersant, and non-swellable latex particles of a cross-linked polymer dispersed in the non-polar carrier. The colorant is chosen from a pigment, a dye, or a combination of a pigment and a dye. The cross-linked polymer consists of: an acrylic monomer having a molecular weight less than 1000, a vinylic monomer having a molecular weight of less than 1000, or combinations thereof. | 04-10-2014 |
20140111580 | LIQUID EJECTION HEAD - In order to provide a liquid ejection head which enables ejection of a droplet at a higher frequency, according to the invention, a piezoelectric vibrator has a multilayer structure. In the multilayer structure, an upper piezoelectric layer and a lower piezoelectric layer are laminated one on another. A drive electrode is formed at a boundary between the upper piezoelectric layer and the lower piezoelectric layer and is electrically connected to a source for supplying a drive signal. An upper common electrode is formed on the surface of the upper piezoelectric layer. A lower common electrode is formed on the surface of the lower piezoelectric layer. An inertance of a nozzle orifice and an inertance of an ink supply port are set so as to become greater than an inertance of a pressure generating portion. | 04-24-2014 |
20140111581 | LIQUID EJECTING APPARATUS - Provided is a liquid ejecting apparatus which comprises a pressure generation chamber, a piezoelectric element, and a driving unit which supplies a driving signal to the piezoelectric element. The piezoelectric layer shows electric field induced phase transition and when among voltages at which the piezoelectric layer shows the electric field induced phase transition a voltage having a higher absolute value is defined as V | 04-24-2014 |
20140118445 | LIQUID EJECTING HEAD AND RECORDING DEVICE USING SAME - A liquid ejecting head and a recording device are disclosed. The head includes a fluid channel member and a piezoelectric substrate on the fluid channel member. The fluid channel member includes chambers, each having a diamond shape with two obtuse angle portions and two acute angle portions. In a plan view, the chambers are arranged in a matrix, and aligned in directions of a row and of a column. The substrate includes a first electrode, a piezoelectric body and second electrodes. Each of the second electrodes includes a main electrode and a lead-out portion. The main electrode overlaps with the respective chamber, and is located inside the chamber in the plan view. The lead-out electrode includes: a first end which overlaps with the respective chamber; and a second end located outside the chamber and located in a region that does not overlap with the column in the plan view. | 05-01-2014 |
20140125738 | LIQUID DISCHARGE HEAD AND RECORDING DEVICE USING SAME - A liquid ejecting head and a recording device are disclosed. The liquid ejecting head includes a fluid channel member and compressing members. The fluid channel member is elongated in a first direction. The fluid channel member includes ejection holes, compression chambers and a manifold. The compressing members is bonded to the fluid channel member. The manifold includes: a length extending in the first direction; openings at the first and second end portions of the fluid channel member; and secondary manifolds divided by one or more partitions that are elongated in the first direction. The compression chambers connected to one of the secondary manifolds configure two compression chamber rows disposed along the secondary manifolds, and the compression chambers belonging to the two compression chamber rows do not overlap in the first direction with compression chambers belonging to compression chamber rows adjacent to the two compression chamber rows. | 05-08-2014 |
20140132675 | BIMODAL INK JET PRINTING METHOD - A method of increasing a dynamic range of grey-scale printing by a first print head of a drop on demand inkjet printer, the first print head having a droplet orifice, the method comprising in addition to selectively supplying no signal for not ejecting a drop of ink, or a first signal for ejecting a first droplet size, further comprises optionally supplying a second signal for ejecting a second droplet size. | 05-15-2014 |
20140139592 | LIQUID JET HEAD, LIQUID JET APPARATUS, AND METHOD OF MANUFACTURING LIQUID JET HEAD - A liquid jet head according to an embodiment of the present invention includes an actuator substrate having slender ejection grooves and slender non-ejection grooves partitioned by slender walls each including a piezoelectric body. The non-ejection grooves have, at ends on one side thereof, respective inclined surfaces rising from bottom surfaces thereof to upper surface openings at upper portions thereof, common electrodes are provided in a strip form along a longitudinal direction of walls on both side surfaces of the walls facing the ejection grooves, active electrodes are provided in a strip form along the longitudinal direction of the walls on both side surfaces of the walls facing the non-ejection grooves, and the active electrodes are provided from positions in the vicinity of the ends on one side of the non-ejection grooves to ends on the other side thereof. | 05-22-2014 |
20140139593 | LIQUID JET HEAD, LIQUID JET APPARATUS AND METHOD OF MANUFACTURING LIQUID JET HEAD - A liquid jet head is provided with an actuator substrate partitioned by elongated walls of a piezoelectric body and having elongated ejection grooves and elongated non-ejection grooves alternately arrayed thereon so as to penetrate the actuator substrate from an upper surface through a lower surface thereof; a cover plate provided on the upper surface and having first slits communicating with the ejection grooves on one side and second slits communicating with the ejection grooves on the other side; and a nozzle plate provided on the lower surface and having nozzles communicating with the ejection grooves. The non-ejection grooves extend, on the other side, up to a second-side peripheral end of the actuator substrate, and the actuator substrate is left to form raised bottom portions on bottoms of the non-ejection grooves near the second-side peripheral end. | 05-22-2014 |
20140146111 | LIQUID EJECTION HEAD - A liquid ejection head, comprises a pressure generation chamber communicating with a nozzle opening and a piezoelectric element having a piezoelectric layer and an electrodes. The piezoelectric layer is a perovskite type complex oxide containing bismuth, iron, and cerium. The piezoelectric layer contains the cerium in a proportion of 0.01 molar ratio or more and 0.13 molar ratio or lower based on the total amount of the bismuth and the cerium. | 05-29-2014 |
20140160207 | Hybrid-Type Apparatus for Injecting Ink - Provided herein is an apparatus for jetting ink where the upper side of a nozzle is open and a physical actuator is provided, and a physical actuator is driven by an electrode provided on the upper and lower side to form an electric field, thereby becoming capable of easily jetting fine-diameter ink. | 06-12-2014 |
20140160208 | INKJET HEAD AND METHOD FOR MANUFACTURING INKJET HEAD - An inkjet head according to an embodiment includes a base portion, a driving element, a wire, a protection portion, and a boundary portion. The base portion includes a mounting surface. The driving element is mounted on the base portion. The wire is formed on the mounting surface and connected to the driving element. The protection portion is formed on the mounting surface, covering a portion of the driving element and the wire, and possesses an insulation property. The boundary portion is provided at an end of the protection portion contacting the wire that is exposed. The boundary portion is thinner than the protection portion and possesses an insulation property. Thus, an inkjet head in which stripping of an insulating portion can be restrained is provided. | 06-12-2014 |
20140168321 | LIQUID JET HEAD, METHOD FOR PRODUCING LIQUID JET HEAD, AND LIQUID JET APPARATUS - The liquid jet head includes an actuator substrate on which a plurality of grooves is arranged, and a nozzle plate having nozzle holes communicated with the grooves. Drive electrodes extending in an X direction and insulating films covering a part of both side surfaces of a wall portion are installed on both of the side surfaces of the wall portion. Each of the drive electrodes are installed on the surface of the wall portion around the nozzle hole | 06-19-2014 |
20140176645 | PIEZOELECTRIC ACTUATOR, INKJET PRINT HEAD ASSEMBLY, AND METHOD OF MANUFACTURING THE PIEZOELECTRIC ACTUATOR AND THE INKJET PRINT HEAD ASSEMBLY - A piezoelectric actuator includes upper and lower electrodes providing driving voltages and a piezoelectric film formed between the upper and lower electrodes and providing a driving force to ink in a plurality of pressure chambers formed on an inkjet print head, respectively. The piezoelectric film may include a plurality of basin parts individually formed on respective tops of the plurality of pressure chambers and a large-area part connected to the plurality of basin parts, respectively, at one ends of the plurality of basin parts and formed as a single body. The large-area part may include an etching groove formed on an extended line of a basin line partitioning the basin parts. | 06-26-2014 |
20140184704 | NOZZLE PLATE, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A silicon nozzle plate has excellent liquid resistance on an inner surface of a nozzle opening and a discharge surface. A plurality of the nozzle openings are disposed in a silicon substrate of the nozzle plate. A first tantalum oxide film is disposed by atomic layer deposition on both surfaces of the silicon substrate and the inner surface of the nozzle opening, and a second tantalum oxide film that is formed by plasma CVD is stacked on the first tantalum oxide film of the discharge surface. | 07-03-2014 |
20140184705 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head suppresses erosion of silicon substrates by liquid, and whereby suppresses leakage of liquid, discharging failure of liquid droplets, and peeling-off of laminated substrates. The liquid ejecting head includes at least a nozzle plate on which nozzle openings for discharging liquid are provided, and a flow path formation substrate on which a pressure generation chamber communicating with the nozzle openings is provided. The nozzle plate is formed with a silicon substrate. At least the flow path formation substrate and the nozzle plate are bonded to each other after providing a tantalum oxide film formed by atomic layer deposition on the entire surfaces including a bonded surface. | 07-03-2014 |
20140204153 | INKJET PRINTHEAD - An inkjet printhead includes multiple sets each of which includes a nozzle, pressure chamber, and actuator; a circuit board; and a connection member. The circuit board includes a wire, through hole via, and ink channel. The connection member, which connects the wire to a driving unit, is provided outside of an array area where the sets are two-dimensionally arrayed. The number of the nozzle rows is N, and each row includes M nozzles (M and N: integer of 2 or more). The through hole vias corresponding to the nozzles of n nozzle row of the N nozzle rows are provided inside of the array area (n: 1≦n07-24-2014 | |
20140210913 | METHOD OF FORMING ELECTROMECHANICAL TRANSDUCER FILM, ELECTROMECHANICAL TRANSDUCER FILM, ELECTROMECHANICAL TRANSDUCER ELEMENT, AND LIQUID DISCHARGE HEAD - Disclosed is an electromechanical transducer film forming method including a surface modification process; an application process; and processes of drying, thermally decomposing, and crystallizing sol-gel solution applied to a portion of a surface of a first electrode. An electromechanical transducer film is formed on a desired pattern area on the surface of the first electrode by repeating the above processes. In the application process, each of dots of the sol-gel solution applied by the inkjet method drops onto both a first area inside the desired pattern area and a second area outside the desired pattern area. The first area is a hydrophilic area on the surface of the first electrode, and the second area is a hydrophobic area on the surface of the first electrode. The hydrophilic area and the hydrophobic area have been modified by the surface modification process. | 07-31-2014 |
20140218444 | LIQUID JET HEAD, METHOD OF MANUFACTURING LIQUID JET HEAD, AND LIQUID JET APPARATUS - Individual electrode pads to be connected to individual electrodes are formed on a first principal face of an actuator substrate at a +X side end thereof. Common electrode pads to be connected to common electrodes are formed on a −X side with respect to the individual electrode pads on the first principal face of the actuator substrate. A groove is formed along a Y direction between the individual electrode pads and the common electrode pads on the first principal face of the actuator substrate. | 08-07-2014 |
20140232792 | FLOW PATH UNIT AND METHOD FOR MANUFACTURING FLOW PATH UNIT - A flow path unit including a first flow path substrate that includes a plurality of pressure chambers arranged in a row, the plurality of pressure chambers each including a first opening that has, on a substrate surface, a long shape in which a width in a first direction is longer than a width in a second direction that is orthogonal to the first direction. The flow path unit further includes a second flow path substrate joined to the first flow path substrate, the second flow path substrate including a plurality of first flow paths arranged in a row, each first flow path being exposed to the inside of a corresponding first opening in a one-to-one manner. In the flow path unit, a direction in which the pressure chambers are arranged and a direction in which the first flow paths are arranged intersect each other. | 08-21-2014 |
20140232793 | INKJET HEAD AND METHOD OF MANUFACTURING THE INKJET HEAD - According to one embodiment, an inkjet head includes: a nozzle plate including plural nozzles; a piezoelectric element including plural pressure chambers corresponding to the nozzles and sidewalls provided adjacent to the pressure chambers and serving as driving elements configured to press the pressure chambers to eject liquid from the nozzles; a substrate to which the piezoelectric element is bonded; and a frame member placed on the substrate to surround the piezoelectric element. Grooves are formed on the upper end, and in which an adhesive is applied to bond the upper ends of the sidewalls and the nozzle plate. | 08-21-2014 |
20140240403 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a flow channel forming substrate having pressure generation chambers communicating with a nozzle opening and arranged in parallel along a lateral direction. A piezoelectric element is provided on one surface of the flow channel forming substrate in correspondence to the pressure generation chamber, and has a first electrode, a piezoelectric layer provided on the first electrode and a second electrode provided on the piezoelectric layer. In a direction intersecting with the arrangement direction of the pressure generation chambers, in boundaries between an active section that is a substantial driving section and an inactive section that is not a substantial driving section of the piezoelectric layer, the first electrode includes a taper section of which a width is gradually decreased toward the boundary from the active section side. | 08-28-2014 |
20140267504 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, ULTRASONIC TRANSDUCER, AND ULTRASONIC DEVICE - Provided is a piezoelectric element which includes a first electrode, a piezoelectric body layer provided on the first electrode, a second electrode provided on the piezoelectric body layer, and a protection film constituted by a silicon oxide layer that is formed using trimethoxysilane and a liquid-phase zirconia layer, in which the protection film is formed to extend from upper portions of the first electrode and the second electrode to boundary portions between the electrodes and the piezoelectric body layers. | 09-18-2014 |
20140267505 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head that ejects liquid includes a flow path member that includes a plurality of pressure chambers through which the liquid flows, pressure generation elements that include active parts arranged at positions corresponding to the pressure chambers and a common electrode for generating a common potential to the respective pressure chambers, and a conductive member that is electrically connected to the common electrode on the flow path member at the side to which the pressure generation elements are fixed and lowers resistance of the common electrode. | 09-18-2014 |
20140267506 | ACTUATOR ELEMENT, LIQUID DROP DISCHARGE HEAD, LIQUID DROP DISCHARGE APPARATUS AND IMAGE FORMING APPARATUS - An actuator element includes an electrode film; and an insulation film layered on the electrode film including a through hole for connecting a wiring which is formed on the insulation film to the electrode film. A shape of a rim of the through hole is either a closed curve free of corners or a polygon with vertex angles which are larger than 90 degrees. | 09-18-2014 |
20140267507 | PIEZOELECTRIC ELEMENT, INKJET DEVICE USING SAME, AND APPLICATION METHOD THEREOF - The piezoelectric element includes first and second sheets | 09-18-2014 |
20140285580 | INKJET HEAD AND METHOD OF MANUFACTURING THE SAME - According to one embodiment, an inkjet head comprises a substrate, and a nozzle plate. The substrate includes grooves. The nozzle plate includes nozzles that are formed by laser processing to communicate with the grooves. Electrodes are formed on respective internal surfaces of the grooves. Each of the electrodes is formed of a plurality of metal layers, and includes a flat surface that is apart from the internal surfaces of the grooves. A first inorganic film is superposed on the surfaces of the electrodes. A second inorganic film is superposed on the first inorganic film. | 09-25-2014 |
20140285581 | DROPLET DEPOSITION APPARATUS - Droplet deposition apparatus including at least one droplet ejection unit having a plurality of fluid channels disposed side by side in a row, an actuator, and a plurality of nozzles, said actuator being actuable to eject a droplet of fluid from a fluid channel through a respective nozzle, a support member for said at least one droplet ejection unit, a first conduit extending along said row and to one side of both said support member and said at least one droplet ejection unit for conveying droplet fluid to each of the fluid channels of said at least one droplet ejection unit; and a second conduit extending along said row and to the other side of both said support member and said at least one droplet ejection unit for receiving droplet fluid from each of the fluid channels of said at least one droplet ejection unit. | 09-25-2014 |
20140292941 | PIEZOELECTRIC ELEMENT MODULE, ULTRASONIC TRANSDUCER, ULTRASONIC DEVICE, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND PIEZOELECTRIC ELEMENT MODULE MANUFACTURING METHOD - A first piezoelectric element having a first piezoelectric layer and a second piezoelectric element having a second piezoelectric layer, which is different from the first piezoelectric layer, are included on the same substrate. The first piezoelectric layer has a d constant greater than a d constant of the second piezoelectric layer. | 10-02-2014 |
20140292942 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a pressure element and a lead electrode that is joined to a wiring substrate which supplies a driving signal, and the pressure element, in which a surface of the lead electrode on the wiring substrate side in a connection region between the lead electrode and the wiring substrate becomes a concavo-convex surface, in which the lead electrode and the wiring substrate are fixed to each other at a periphery of the connection region and at least one portion of a concave portion of the concavo-convex surface of the lead electrode with a non-conductive paste, and in which the lead electrode and the wiring substrate are electrically connected to each other at a convex portion of the concavo-convex surface of the lead electrode on which the non-conductive paste is not present. | 10-02-2014 |
20140292943 | INK SET AND RECORDING METHOD - The ink set of the invention includes a first ink composition and a second ink composition. The first ink composition contains a first pigment and an alkanediol having 6 or less carbon atoms and having a normal boiling point of 245° C. or more. The content of the first pigment is 1.5% by mass or more, and the content of the alkanediol is 3% by mass or more and 20% by mass or less. The second ink composition contains a second pigment and a penetrant other than the alkanediol. The content of the second pigment is less than 1.5% by mass. The penetrant contained in the second ink composition has an osmotic force higher than that of the alkanediol contained in the first ink composition. | 10-02-2014 |
20140292944 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - An ink jet type recording head includes a plurality of pressure generation chambers which are filled with ink, and piezoelectric elements which eject ink droplet through nozzle openings which are provided so as to correspond to each pressure generation chamber by applying pressure to the ink in each pressure generation chamber. The pressure generation chamber has a shape such that the piezoelectric element in the opposite side to a protrusion side in which at least a portion of the piezoelectric element protrudes out of the pressure generation chamber is deformed more easily than that in the protrusion side. | 10-02-2014 |
20140292945 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD OF MANUFACTURING LIQUID EJECTING HEAD - Provided is a liquid ejecting head which ejects liquid from nozzle holes by changing a pressure in a liquid flow path in a pressure chamber. The liquid ejecting head includes a flow path member which is formed of ceramic, and in which the pressure chamber is formed; and a piezoelectric element which includes at least a first piezoelectric layer which is formed of ceramic. The first piezoelectric layer of the piezoelectric element is bonded to the flow path member, and the first piezoelectric layer faces the pressure chamber. | 10-02-2014 |
20140313264 | METHOD FOR MANUFACTURING A FLUID EJECTION DEVICE AND FLUID EJECTION DEVICE - A method for manufacturing a fluid ejection device, comprising the steps of: providing a first semiconductor body having a membrane layer and a piezoelectric actuator which extends over the membrane layer; forming a cavity underneath the membrane layer to form a suspended membrane; providing a second semiconductor body; making, in the second semiconductor body, an inlet through hole configured to form a supply channel of the fluid ejection device; providing a third semiconductor body; forming a recess in the third semiconductor body; forming an outlet channel through the third semiconductor body to form an ejection nozzle of the fluid ejection device; coupling the first semiconductor body with the third semiconductor body and the first semiconductor body with the second semiconductor body in such a way that the piezoelectric actuator is completely housed in the first recess, and the second recess forms an internal chamber of the fluid ejection device. | 10-23-2014 |
20140320568 | INKJET PRINT HEAD - There is provided an inkjet print head including a substrate member including an ink channel, a piezoelectric actuator formed on the substrate member, and a coating member formed on the piezoelectric actuator and including a photosensitive material. | 10-30-2014 |
20140333701 | Method for Manufacturing Piezoelectric Actuator - A method for manufacturing a piezoelectric actuator is disclosed that includes forming a vibration plate, forming a plurality of electrodes on the vibration plate, forming a piezoelectric layer on the electrodes, and forming a common electrode on the piezoelectric layer. | 11-13-2014 |
20140354737 | PIEZOELECTRIC DEVICE, INKJET EQUIPMENT USING THE PIEZOELECTRIC DEVICE, AND THE INKJET PRINTING METHOD - A piezoelectric device according to the present invention is a laminated body including stacked first and second sheets. The laminated body is divided by a plurality of grooves. | 12-04-2014 |
20140354738 | PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD, ULTRASONIC MOTOR, AND DUST REMOVING DEVICE - Provided is a piezoelectric material having high Curie temperature, high insulation property, and high piezoelectric performance, the piezoelectric material including a perovskite-type metal oxide represented by the general formula (1): xBaTiO | 12-04-2014 |
20140368582 | PIEZOELECTRIC UNIT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS AND METHOD OF MANUFACTURING PIEZOELECTRIC UNIT - A piezoelectric unit includes a diaphragm made of ceramics, a base portion having a pressure chamber in which the diaphragm is set to a wall and a piezoelectric element having a dielectric layer provided at the opposite side of the base portion with respect to the diaphragm. In the piezoelectric unit, the roughness of a crystal of the outermost interface at the side of the piezoelectric element of the diaphragm is further smoothened than that of a ceramics material which is included in the diaphragm more inside than the interface. | 12-18-2014 |
20140368583 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND PIEZOELECTRIC ELEMENT - A liquid ejecting head includes a piezoelectric element including a first electrode, a piezoelectric layer overlying the first electrode with an orientation control layer therebetween, and a second electrode overlying the piezoelectric layer. The piezoelectric layer is made of a complex oxide having a perovskite structure including an A site containing lead and a B site containing zirconium and titanium. The orientation control layer is made of a complex oxide having a perovskite structure including an A site containing lanthanum and a B site containing nickel and titanium. | 12-18-2014 |
20140368584 | LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A liquid ejecting head unit includes a liquid ejecting head; an upstream flow path member that includes upstream flow paths; a downstream flow path member that includes downstream flow paths; and a seal member that includes pipe-shaped portions, which connect the upstream flow paths to the downstream flow paths and are provided with connecting flow paths through the inner portions of which a liquid flows, and is formed of an elastic material. The pipe-shaped portions are sealed due to inner walls thereof abutting at least one of the upstream flow path member and the downstream flow path member. The inner walls of the pipe-shaped portions include retaining portions that are provided along outer circumferences of the pipe-shaped portions so as to surround a region of the inner walls that abuts at least one of the upstream flow path member and the downstream flow path member. | 12-18-2014 |
20140375728 | ACTUATOR, METHOD OF MANUFACTURING THE ACTUATOR, AND LIQUID DROPLET EJECTING HEAD, LIQUID DROPLET EJECTING APPARATUS, AND IMAGE FORMING APPARATUS HAVING THE ACTUATOR - An actuator includes a base member and an electro-mechanical transducer element including a first electrode, an electro-mechanical transducer film, and a second electrode. Further, the base member includes a thin wall part having a concave shape, the electro-mechanical transducer film is formed in a manner such that a film thickness of the electro-mechanical transducer film is gradually reduced from a center part of the electro-mechanical transducer film to both end parts of the electro-mechanical transducer film in at least one direction crossing a film thickness direction of the electro-mechanical transducer film. | 12-25-2014 |
20150022592 | ELECTROMECHANICAL TRANSDUCER, DROPLET EJECTION HEAD, AND METHOD FOR MANUFACTURING ELECTROMECHANICAL TRANSDUCER - An electromechanical transducer includes a first electrode mounted on one of a substrate and a base film, an electromechanical transducer film mounted on the first electrode and made of a piezoelectric substance having a perovskite crystal structure, and a second electrode mounted on the electromechanical transducer film. The electromechanical transducer film includes a {100} plane preferentially oriented to be orthogonal to a thickness direction of the electromechanical transducer film and has a full width at half maximum corresponding to a {200} plane in an X-ray diffraction measurement curve in 2θ-ω scan that is measured by emitting an X-ray beam onto a surface of the electromechanical transducer film at an incident angle θ. The full width at half maximum is not greater than 10 degrees. | 01-22-2015 |
20150022593 | LIQUID EJECTING APPARATUS AND METHOD OF CONTROLLING LIQUID EJECTING APPARATUS - A pressure chamber array includes one or more dummy pressure chambers in which ejection of ink is not performed, the dummy pressure chamber includes a piezoelectric element, and a drive potential generator continues to apply a drive potential to the piezoelectric element corresponding to the dummy pressure chamber, while the ejection of the ink from a nozzle of at least a pressure chamber adjacent to the dummy pressure chamber is performed. | 01-22-2015 |
20150029269 | LIQUID JET HEAD, LIQUID JET APPARATUS AND METHOD OF MANUFACTURING LIQUID JET HEAD - The liquid jet head is provided with a piezoelectric substrate having a plurality of groove rows in each of which elongated ejection grooves and elongated non-ejection grooves are alternately arranged in a reference direction. In adjacent ones of the groove rows, ends on a second side of ejection grooves included in a groove row located on a first side and ends on the first side of non-ejection grooves included in a groove row located on the second side are separated from each other, and overlap each other in a thickness direction of the piezoelectric substrate. | 01-29-2015 |
20150035908 | LIQUID JET HEAD AND LIQUID JET APPARATUS - The liquid jet head is provided with: a piezoelectric body substrate which includes a groove row in which ejection grooves penetrating the piezoelectric body substrate from an upper surface through a lower surface and non-ejection grooves open on the upper surface are alternately arranged in a reference direction, common drive electrodes formed on both side surfaces of each of the ejection grooves, and individual drive electrodes formed on both side surfaces of each of the non-ejection grooves; and a cover plate which is bonded to the upper surface of the piezoelectric body substrate and includes a liquid chamber communicating with the ejection grooves, first through electrodes which penetrate the cover plate in a thickness direction and are electrically connected to the individual drive electrodes, and individual terminals which are placed on a front surface opposite to the piezoelectric body substrate and electrically connected to the first through electrodes. | 02-05-2015 |
20150035909 | BIAS CURRENT CONTROL FOR PRINT NOZZLE AMPLIFIER - An apparatus includes an amplifier that drives a piezo print nozzle. A bias adjuster varies bias current in the amplifier as an input signal slew rate varies to the amplifier. | 02-05-2015 |
20150035910 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A common liquid chamber that communicates with a plurality of pressure chambers includes at least one inflow port into which a liquid flows, a plurality of supply openings, arranged in a row, for supplying the liquid to each of the pressure chambers, and a slanted surface that, when viewed from a second direction that is orthogonal to an arrangement direction in which the supply openings are arranged and that follows a substrate in which the common liquid chamber is formed, is slanted so that the slanted surface overlaps with the arrangement of some of the supply openings including supply openings located at ends of the arrangement direction and approaches the arrangement of the supply openings at the end areas of the arrangement direction. At least part of the inflow port is located within the range of the arrangement of the stated some of the supply openings when viewed from the second direction. An angle of the slanted surface and a position of the inflow port are set so that a flow rate of the liquid is no less than 0.025 m/s in the vicinity of an end of the inflow port in the arrangement direction when the liquid is sucked from the nozzle openings by applying negative pressure to the nozzle openings. | 02-05-2015 |
20150035911 | PRINTING SYSTEM, PRINTING APPARATUSES, AND METHODS OF FORMING NOZZLES OF PRINTING APPARATUSES - A printing apparatus includes: a flow channel plate including, a pressure chamber, a nozzle including an outlet through which ink contained in the pressure chamber is ejected, and a trench disposed around the nozzle, and the outlet extending into the trench; a piezoelectric actuator configured to provide a change in pressure to eject the ink contained in the pressure chamber; and an electrostatic actuator configured to provide an electrostatic driving force to the ink contained in the nozzle. | 02-05-2015 |
20150042726 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a liquid discharge unit that has a pressure generating chamber group which communicates with a nozzle disposed on a nozzle surface and is formed from a plurality of pressure generating chambers disposed in a first direction, and a case member which communicates with the pressure generating chamber group and holds a liquid, in which the case member has at least one liquid inlet on the side opposite to the liquid discharge direction and at a position between the pressure generating chambers at both ends in the first direction in a plan view of the pressure generating chamber group from the opposite side, and a first liquid discharge unit and a second liquid discharge unit are arranged at positions where the first directions of the first liquid discharge unit and the second liquid discharge unit are substantially parallel to each other in a second direction that is orthogonal to the first direction, and positions of the liquid inlets of the case member respectively corresponding to the first liquid discharge unit and the second liquid discharge unit do not overlap in the second direction. | 02-12-2015 |
20150054887 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a head chip that ejects ink from a liquid ejecting surface. An inlet is disposed on the side opposite to the liquid ejecting surface. The liquid ejecting head includes an upstream flow path member, a downstream flow path member with an accommodating space that accommodates the head chip, a wiring member that is connected to a piezoelectric actuator in the head chip, and a wiring substrate. A first insertion hole, into which the wiring member is inserted, is disposed in the wiring substrate, a second insertion hole that is open to the accommodating space and the wiring substrate side for the wiring member to be inserted is formed in the downstream flow path member, and the wiring member is inserted into the first insertion hole and the second insertion hole to be bonded to the upstream flow path member side of the wiring substrate. | 02-26-2015 |
20150054888 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS AND PIEZOELECTRIC DEVICE - Provided is a piezoelectric element that has a first electrode, a piezoelectric layer provided on the first electrode, and a second electrode provided on the piezoelectric layer, an average grain size of crystal grains aligned in a planar direction within 15° from a (100) plane is less than the average grain size of the crystal grains facing a planar direction inclined by more than 15° from the (100) plane, in a case in which the crystal orientation of the piezoelectric layer is analyzed using an electron beam backscatter diffraction method (EBSD). | 02-26-2015 |
20150062254 | INKJET HEAD INCLUDING NOZZLE PLATE PROVIDED WITH PIEZOELECTRIC ELEMENT - An inkjet head includes: a pressure chamber in which ink is filled; a nozzle plate which is provided on a first surface of the pressure chamber and which includes a nozzle communicating with the pressure chamber; and a planar drive section which is formed on the nozzle plate so as to extend from above a partition wall of the pressure chamber to above the pressure chamber, excluding a hole area around the nozzle and which has a piezoelectric body. | 03-05-2015 |
20150062255 | DROPLET DISCHARGE HEAD, AND IMAGE-FORMING APPARATUS - A droplet discharge head includes a plurality of pressure chambers which communicate with a plurality of nozzles which discharge droplets, respectively; at least one common supply passage which supplies liquid to the pressure chambers; at least one common return passage which communicates with the pressure chambers and to which a part of the liquid in the pressure chambers is returned; and a plurality of energy-generating elements which generate pressure in the pressure chambers, wherein the droplet discharge head circulates liquid supplied from the common supply passage to the pressure chambers to the common return passage and discharges droplets from the nozzles when pressure is generated in the pressure chambers by the energy-generating elements, and the common supply passage and the common return passage are arranged on the same side with respect to the pressure chambers. | 03-05-2015 |
20150070443 | PIEZOELECTRIC ACTUATOR, INK JET HEAD, AND METHOD FOR PRODUCING PIEZOELECTRIC ACTUATOR - A head has a base and a piezoelectric element which is superimposed on and fastened to the base in a thickness direction. The piezoelectric element has a plate-shaped piezoelectric body, and a common electrode and a individual electrode arranged so as to sandwich the piezoelectric body in the thickness direction. The base has a higher thermal expansion coefficient than the piezoelectric body (the piezoelectric element | 03-12-2015 |
20150070444 | PIEZOELECTRIC ACTUATOR, FLUID DISCHARGE HEAD, AND IMAGE FORMING DEVICE - A piezoelectric actuator includes a vibrating plate, a lower electrode provided on the vibrating plate, including a platinum film and a titanium oxide film formed on the platinum film, a piezoelectric thin film provided on the lower electrode, and an upper electrode provided on the piezoelectric thin film, in which the titanium oxide film is provided between the platinum film and the piezoelectric thin film. | 03-12-2015 |
20150077474 | Piezoelectric Thin Film, Piezoelectric Element, Ink-Jet Head, And Ink-Jet Printer - A piezoelectric thin film which is of a perovskite type having a tetragonal crystal structure, the tetragonal crystal having a degree of (100) orientation of 80% or higher. The piezoelectric thin film is constituted of a lead lanthanum zirconate titanate (PLZT) which is a lead zirconate titanate (PZT) in which some of the lead has been replaced with lanthanum. | 03-19-2015 |
20150077475 | ELECTROMECHANICAL TRANSDUCER ELEMENT, METHOD OF MANUFACTURING THE SAME, LIQUID DROPLET DISCHARGE HEAD, AND LIQUID DROPLET DISCHARGE DEVICE - An electromechanical transducer element includes a substrate; a first electrode formed on the substrate as a common electrode; an electromechanical transducer membrane formed on the first electrode; a second electrode formed on the electromechanical transducer membrane as an individual electrode; a first insulation protection membrane formed on the first and the second electrode; a third electrode electrically connected to the first electrode; a fourth electrode electrically connected to the second electrode; a second insulation protection membrane including a common electrode pad formed on the third electrode and plural individual electrode pads formed on the fourth electrode; and a fifth electrode formed so as to surround a vicinity of at least one of the individual electrode pads disposed at end parts. | 03-19-2015 |
20150085022 | INK JET HEAD HAVING NOZZLE PLATE EQUIPPED WITH PIEZOELECTRIC ELEMENTS - An ink jet head includes: a pressure chamber to be filled with ink formed in a pressure chamber structure, the pressure chamber in which an etching limiter made of a material different from a material of the pressure chamber structure is formed on an inner wall surface of the pressure chamber; a nozzle plate comprising a nozzle that leading to the pressure chamber and a movable range fitted to the etching limiter; and a flat driver comprising a piezoelectric body to operate the movable range and arranged on the nozzle plate. | 03-26-2015 |
20150109372 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INK-JET PRINTER DEVICE - The displacement as an actuator or the sensitivity as a sensor of a piezoelectric element can be increased and, in addition, the electric power consumption can be reduced by providing a thin film of potassium-sodium niobate, which is a perovskite type compound represented by a general formula ABO | 04-23-2015 |
20150109373 | LIQUID JET HEAD AND LIQUID JET APPARATUS - A liquid jet head includes a first piezoelectric body substrate and an opaque substrate. The first piezoelectric body substrate includes n pieces of ejection grooves arrayed with an identical pitch in a reference direction on a surface, and (n+1) pieces of non-ejection grooves arrayed alternately with the ejection grooves while shifted therefrom by a half pitch. The opaque substrate is bonded to the surface of the first piezoelectric body substrate and includes (j+n+k) pieces of through holes passing through the plate in the board thickness direction and arrayed in the reference direction. Each of n pieces of through holes communicates with each of the n pieces of the ejection grooves, while j and k pieces of through holes do not communicate with the ejection grooves. | 04-23-2015 |
20150116428 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, ACTUATOR, SENSOR, AND MOTOR - A piezoelectric element used between a lowest use temperature T1 and a highest use temperature T2, includes a first electrode, a piezoelectric layer provided on the first electrode and made of a piezoelectric material including a composite oxide having a perovskite structure, the piezoelectric material having a morphotropic phase boundary which is inclined with respect to a temperature axis, and the piezoelectric material satisfying at least one of formulas T3≦T1≦T4 and T3≦T2≦T4, where T3 is a temperature corresponding to the morphotropic phase boundary at a lowest point and T4 is a temperature corresponding to the morphotropic phase boundary at a highest point and a second electrode provided on the piezoelectric layer. | 04-30-2015 |
20150130877 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting apparatus is provided with an actuator substrate on which a piezoelectric actuator that generates a pressure change in a pressure generation chamber, which is in communication with a nozzle opening that ejects a liquid, is provided. The liquid ejecting head is provided with lead-out wiring that is led out from the piezoelectric actuator to the top of the actuator substrate, the lead-out wiring is provided with an adhesive layer that is provided on an actuator substrate side, and a conductive layer that is provided on a side of the adhesive layer which is opposite the actuator substrate, and the adhesive layer has a width that is narrower than the conductive layer in at least a parallel arrangement direction of the lead-out wiring. | 05-14-2015 |
20150138281 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, ULTRASONIC SENSOR, PIEZOELECTRIC MOTOR, AND POWER GENERATING APPARATUS - A piezoelectric element includes: a first electrode; a piezoelectric body layer which is provided on the first electrode; and a second electrode which is provided on the piezoelectric body layer, the piezoelectric body layer is made of a composite oxide with a perovskite structure, which contains bismuth, barium, iron, titanium, and strontium, and the content of strontium with respect to barium is equal to or greater than 5 mol % and equal to or less than 18 mol %. | 05-21-2015 |
20150145926 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND PIEZOELECTRIC ELEMENT - Provided is A piezoelectric element comprising a first electrode; a piezoelectric body layer provided on the first electrode, the piezoelectric body layer including 50 mol % or more of at least bismuth and iron, and the piezoelectric body layer having a current-time curve obtained by applying a voltage to the first electrode and the second electrode including a plurality of inflection points; and a second electrode provided on the piezoelectric body layer. | 05-28-2015 |
20150145927 | INKJET HEAD AND INKJET APPARATUS HAVING THE SAME - An inkjet head includes a substrate having plural ink inlet holes arranged along a first direction and plural ink outlet holes arranged generally along the first direction such that adjacent ink outlet holes are offset along the first direction, a plurality of partitioning walls made of piezoelectric material that define pressure chambers therebetween, each of the partitioning walls disposed on the substrate and generally extending in a second direction that crosses the first direction between the ink inlet holes and the ink outlet holes, and a nozzle plate disposed on the partitioning walls and having a plurality of nozzles, each of the nozzles being arranged on one of the pressure chambers. | 05-28-2015 |
20150295160 | PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC EQUIPMENT - To provide a lead-free piezoelectric material having a high and stable piezoelectric constant in a wide operating temperature range. The piezoelectric material contains a perovskite type metal oxide having the general formula (1), Mn, Mg, | 10-15-2015 |
20150295161 | PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC EQUIPMENT - There is provided a lead-free piezoelectric material having a high and stable piezoelectric constant and mechanical quality factor in a wide operating temperature range. | 10-15-2015 |
20150303371 | PIEZOELECTRIC LAMINATE, SURFACE ACOUSTIC WAVE DEVICE, THIN-FILM PIEZOELECTRIC RESONATOR, AND PIEZOELECTRIC ACTUATOR - A piezoelectric laminate including a base and a first piezoelectric layer formed above the base and including potassium sodium niobate. The first piezoelectric layer is shown by a compositional formula (K | 10-22-2015 |
20150321477 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a plurality of pressure generators each including a first electrode individually provided therefor, the first electrode being located on a face of the flow path plate so as to correspond to one of the pressure chambers, a piezoelectric layer provided on the first electrode, and a second electrode provided on the piezoelectric layer; a lead electrode electrically connected to the first electrode; and a conductive layer provided in a section where the first electrode is partially exposed, the section being located in a region where the second electrode is not provided and the piezoelectric layer is exposed, at least a part of the conductive layer being in contact with the first electrode. The lead electrode is connected to the first electrode via the conductive layer. | 11-12-2015 |
20150328894 | LIQUID EJECTION HEAD - A liquid ejection head including a recording element substrate at one side portion of which an electrode is provided, an electric wiring board arranged opposing to the one side portion of the recording element substrate, a connecting member connecting the electrode provided at the one side portion of the recording element substrate to an electrode terminal provided on the electric wiring board, a sealing member formed across the one side portion of the recording element substrate and the electric wiring board so as to cover the connecting member, and a dummy sealing member provided so as to cover an opposite side portion on the side opposite to the one side portion of the recording element substrate. | 11-19-2015 |
20150336383 | LIQUID DISCHARGE APPARATUS - A liquid discharge apparatus includes: a drive signal generator that generates a drive signal; a piezoelectric element that is displaced in response to a voltage of the drive signal; a cavity which is filled with a liquid and of which an inside volume is expanded and contracted due to the displacement of the piezoelectric element; and a nozzle that communicates with the cavity and is capable of discharging the liquid by the expansion and contraction of the inside volume of the cavity. In the drive signal generator, a set of a first MOSFET and a second MOSFET which are electrically connected in series between a wire of a high potential and a wire of a low potential is arranged in plurality in series. A part or all of the first MOSFETs and the second MOSFETs in the plurality of sets have different sizes from each other. | 11-26-2015 |
20150353431 | PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC EQUIPMENT - There is provided a lead- and potassium-free piezoelectric material having a high piezoelectric constant and a satisfactory insulation property and a piezoelectric element that includes the piezoelectric material. The piezoelectric material contains a perovskite-type metal oxide having the general formula (1): (Na | 12-10-2015 |
20150357552 | PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND ULTRASONIC MEASURING APPARATUS - A piezoelectric material is expressed as a mixed crystal including a complex oxide having a perovskite structure and a rhombohedral structure and a complex oxide having a perovskite structure and a tetragonal structure, and the molar ratio of the complex oxide having a rhombohedral structure to the complex oxide having a tetragonal structure (rhombohedral crystal/tetragonal crystal) is 0.54 to less than 1.20. | 12-10-2015 |
20150357553 | PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND ULTRASONIC MEASURING APPARATUS - A piezoelectric material is expressed as a mixed crystal including a first component formed of a complex oxide having a perovskite structure and a rhombohedral structure and containing Bi in an A-site and Fe in a B-site, a second component formed of a complex oxide having a perovskite structure and a tetragonal structure and containing Ba in an A-site and Ti in a B-site, and a third component formed of a complex oxide having a perovskite structure and a tetragonal structure and containing Bi and K in an A-site and Ti in a B-site. | 12-10-2015 |
20150364675 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, ACTUATOR, SENSOR, AND PIEZOELECTRIC MATERIAL - A piezoelectric element includes a first electrode, a piezoelectric layer which is provided on the first electrode, and a second electrode which is provided on the piezoelectric layer, and the piezoelectric layer is made of a piezoelectric material expressed as a mixed crystal including a first component formed of a complex oxide containing Bi and Fe and having a rhombohedral perovskite structure and a complex oxide containing Ba and Ti and having a tetragonal perovskite structure, a second component formed of a complex oxide containing Bi, K, and Ti and having a tetragonal perovskite structure, and a third component formed of a complex oxide containing Bi, Mg, and Ti and having a rhombohedral perovskite structure. | 12-17-2015 |
20160005950 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR DEVICE, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND ULTRASONIC MEASURING APPARATUS - Provided is a piezoelectric element in which a first electrode, a piezoelectric layer, and a second electrode are sequentially stacked on a substrate, the piezoelectric layer being formed of composite oxide having a perovskite structure which contains at least Pb, Nb, and Ti, in which the piezoelectric layer has a tetragonal crystal structure, the crystal is oriented to {100} against the substrate, and regions are mixed in a crystal lattice, each region including a (100) plane and a (001) plane which are orthogonal to a stacking direction, and the composite oxide of the piezoelectric layer is represented by the following general expression. | 01-07-2016 |
20160031212 | LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, AND LIQUID DISCHARGE APPARATUS - A liquid discharge head includes a plurality of nozzles to discharge liquid droplets; a plurality of piezoelectric elements, each corresponding to a corresponding one of the plurality of nozzles and disposed along a nozzle alignment direction along which the plurality of nozzles is aligned; an actuator member on which the plurality of piezoelectric elements is aligned; and wiring disposed along the nozzle alignment direction, connected to the plurality of piezoelectric elements, and included in the actuator member, the wiring including a first wiring pattern to which the plurality of piezoelectric elements is connected, the first wiring pattern including a near side proximal to and a far side distal from a source of a drive signal for the piezoelectric elements. The near side and the far side are connected via a second wiring pattern. | 02-04-2016 |
20160031213 | INKJET HEAD HAVING A PLURALITY OF LID MEMBERS CONNECTED TO NOZZLES AND AN INKJET APPARATUS HAVING THE INKJET HEAD - An inkjet head includes a substrate, a piezoelectric unit disposed on the substrate and including a plurality of piezoelectric elements arranged along a surface of the substrate, and a plurality of pressure chambers, each of the pressure chambers being formed between two adjacent piezoelectric elements, a plurality of lid members, each of which is disposed on two adjacent piezoelectric elements and has a hole connected to one of the pressure chambers, and a nozzle plate disposed on the plurality of lid members and having a plurality of nozzles through which the liquid is discharged, each of the nozzles being connected to one of the holes of the lid members. | 02-04-2016 |
20160049579 | FABRICATION METHOD OF ELECTROMECHANICAL TRANSDUCER FILM, FABRICATION METHOD OF ELECTROMECHANICAL TRANSDUCER ELEMENT, ELECTROMECHANICAL TRANSDUCER ELEMENT, LIQUID EJECTION HEAD, AND IMAGE FORMING APPARATUS - A method of fabricating an electromechanical transducer film includes applying a precursor solution on a support substrate, heating the substrate at a first temperature to form a ceramic thin-film in amorphous state, applying a sol-gel solution onto the ceramic thin-film, and heating the ceramic thin-film at a second temperature to form an electromechanical transducer thin-film in amorphous state. The method further includes heating the ceramic and transducer thin-films at a third temperature to thermally decompose an organic substance in the sol-gel solution and form a unitary thin-film, processing the unitary thin-film to form a patterned unitary thin-film, modifying an area on which the patterned film is not formed, discharging the sol-gel solution onto a surface of the patterned film by a liquid discharge head to apply the sol-gel solution to the surface of the patterned film, and heating the patterned film at a fourth temperature to crystallize the patterned film. | 02-18-2016 |
20160059555 | LIQUID DISCHARGE HEAD AND HEAD UNIT USING THE SAME - A liquid discharge head including plural liquid discharge portions each including a discharge port for discharging liquid, plural discharge ports forming a discharge port array; a common liquid supply flow path extending adjacent to the discharge port array on one side of the discharge port array; and a common liquid collection flow path extending adjacent to the discharge port array on the other side of the discharge port array. Each liquid discharge portion includes a pressure chamber having the discharge port, and a piezoelectric element facing the discharge port. The pressure chamber includes an inlet and an outlet end portion respectively connected to the common liquid supply and collection flow paths, and has an elongated shape connecting the inlet and outlet end portions. A plurality of inlet and outlet end portions are respectively arranged along the common liquid supply flow path and the common liquid collection flow path. | 03-03-2016 |
20160152028 | LIQUID EJECTION APPARATUS AND METHOD FOR MANUFACTURING LIQUID EJECTION APPARATUS | 06-02-2016 |
20160159088 | LIQUID DISCHARGING APPARATUS, HEAD UNIT, INTEGRATED CIRCUIT DEVICE FOR CAPACITIVE LOAD DRIVING, CAPACITIVE LOAD DRIVING CIRCUIT, AND MANUFACTURING METHOD OF LIQUID DISCHARGING APPARATUS - There is provided a liquid discharging apparatus including: an original driving signal generation portion which generates an original driving signal based on a source signal; a driving signal generation portion which generates a driving signal based on the original driving signal; a reference voltage generation portion which generates a first reference voltage and a second reference voltage adjusted based on an adjustment signal, and supplies the voltage to the original driving signal generation portion; a piezoelectric element which is displaced as the driving signal is applied; a cavity; and a nozzle, and discharges the liquid inside the cavity as liquid droplets in accordance with the change in the internal volume of the cavity, in which adjustment resolution of the first reference voltage is lower than adjustment resolution of the second reference voltage. | 06-09-2016 |
20160163955 | METHOD FOR CONNECTING PIEZOELECTRIC ELEMENT AND CABLE SUBSTRATE, PIEZOELECTRIC ELEMENT HAVING CABLE SUBSTRATE, AND INKJET HEAD INCLUDING PIEZOELECTRIC ELEMENT WITH CABLE SUBSTRATE - A connection method disclosed herein includes softening a resin film of a thermosetting resin by heating an element electrode of a piezoelectric body and a substrate electrode of a flexible cable to be connected to the piezoelectric body with the element electrode and the substrate electrode being pressed into contact with each other via the resin film; partially pushing out the molten resin film from an opposing position of the element electrode and the substrate electrode so as to bring a solder layer provided on the substrate electrode into contact with the element electrode; curing the resin film and melting solder in the solder layer by further raising a heating temperature; discharging excess solder in a direction defined by the cured resin film; and then solidifying the solder in the solder layer so as to solder the element electrode and the substrate electrode together. | 06-09-2016 |
20160167370 | LIQUID DISCHARGING APPARATUS, HEAD UNIT, CAPACITIVE LOAD DRIVING CIRCUIT, AND INTEGRATED CIRCUIT DEVICE | 06-16-2016 |
20160167371 | LIQUID DISCHARGING APPARATUS, HEAD UNIT, CAPACITIVE LOAD DRIVING CIRCUIT, AND INTEGRATED CIRCUIT DEVICE FOR CAPACITIVE LOAD DRIVING | 06-16-2016 |
20160167374 | LIQUID DISCHARGING APPARATUS, HEAD UNIT, CAPACITIVE LOAD DRIVING CIRCUIT, AND INTEGRATED CIRCUIT DEVICE FOR CAPACITIVE LOAD DRIVING | 06-16-2016 |
20160167383 | ELECTROMECHANICAL TRANSDUCER ELEMENT, LIQUID DROPLET DISCHARGE HEAD, AND IMAGE FORMING APPARATUS | 06-16-2016 |
20160185116 | Piezoelectric actuator, liquid discharging apparatus and method for producing piezoelectric actuator - There is provided a piezoelectric actuator including: a plurality of piezoelectric elements forming first and second piezoelectric element rows, and including first, second electrodes and piezoelectric portion; an electrode conductive portion; a contact section; a plurality of drive wires,; and conductive wires. A part of the drive wires corresponding to the piezoelectric elements of the second piezoelectric element row are extended toward the contact section while passing between two adjacent piezoelectric elements of the first piezoelectric element row which are adjacent in the first direction. The conductive wires are arranged between two adjacent piezoelectric elements of the second piezoelectric element row, each of the conductive wires is conducted, at two locations thereof apart in the second direction, with the electrode conductive portion. | 06-30-2016 |
20160200104 | LIQUID EJECTION HEAD | 07-14-2016 |
20160204335 | PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, AND ELECTRONIC APPLIANCE | 07-14-2016 |
20160204336 | PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, PIEZOELECTRIC DEVICE AND PIEZOELECTRIC CERAMIC MANUFACTURING METHOD | 07-14-2016 |
20190143691 | MEMS DEVICE, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND MANUFACTURING METHOD OF MEMS DEVICE | 05-16-2019 |
20220134752 | PIEZOELECTRIC DEVICE, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD OF MANUFACTURING PIEZOELECTRIC DEVICE - A piezoelectric body layer of a first area has ( | 05-05-2022 |