Patent application number | Description | Published |
20080218778 | Image Forming System, Image Forming Apparatus and Density Correction Method - An image forming system, image forming apparatus, and method of correcting image density are provided. The system includes a forming unit that forms an image; an acquisition unit that acquires factor information corresponding to a factor which is capable of causing variations in density of the image; a first determination unit that determines a number of marks in accordance with the factor information; a control unit that provides the forming unit with, as the image data, data pertaining to a pattern comprising a plurality of density marks which are different from each other in density and which are equal in number to the number of marks; a detection unit that detects a density of the image formed on the target by the forming unit in relation to the pattern; and a correction unit that corrects the density of the image in accordance with a result of the detection. | 09-11-2008 |
20090244567 | Image Forming Apparatus - An image forming apparatus includes an exposing unit and a first processing component. The first processing component is configured to generate a first data and a second data. The first data causes the exposing unit to blink in accordance with image data. The second data sets a blink mode of the exposing unit. The image forming apparatus also includes a second processing component connected to the first processing component through a first signal line. The second processing component is configured to receive the first data and the second data from the first processing component and perform blink control of the exposing unit based on the first data and the second data. The exposing unit is connected to the second processing component through a second signal line. The image forming apparatus thus can remedy a defect in data communication to the exposing units. | 10-01-2009 |
20100165386 | PRINT CONTROL DEVICE FOR OBTAINING APPROPRIATE PRINT RESULTS - A print control device includes a data acquiring section, a print control section, a preview-image output control section, and a print-ratio acquiring section. The data acquiring section acquires image data. The print control section controls a printing device to print an image based on the image data on a sheet. The preview-image output control section outputs preview images at a plurality of print ratios. The preview images are indicators of print results to be obtained when the printing device prints, on the sheet, the image based on the image data at the respective print ratios. The print-ratio acquiring section acquires print-ratio specifying information through an input device that can be operated by a user, after the preview-image output control section outputs the preview images. The print control section controls the printing device to print, on the sheet, the image based on the image data at a print ratio specified by the print-ratio specifying information. | 07-01-2010 |
20110062994 | FREQUENCY LEVEL DETECTING METHOD - A frequency level detecting method includes counting pulses of a spread-spectrum clock, the spread-spectrum clock having a frequency that is modulated within a frequency range from a minimum frequency to a maximum frequency in a constant modulation period of time, the frequency range being divided into a plurality of sub-ranges each corresponding to one of a plurality of frequency levels; determining at least one to-be-counted value range corresponding to one of the plurality of sub-ranges; judging whether or not the counted pulses fall within one of the at least one to-be-counted value range; and generating a level detection signal if the counted pulses fall within the one of the at least one to-be-counted value range, the level detection signal indicating that a frequency of the spread-spectrum clock falls within one of the plurality of frequency levels that corresponds to one of the plurality of sub-ranges corresponding to the one of the at least one to-be-counted value range. | 03-17-2011 |
20110267662 | IMAGE-READER - In an image-reader, the first counter is configured to count a first count value based on a first clock. The second counter is configured to count a second count value based on a second clock. The first reading unit is configured to read a first surface of a document sheet based on the first count value. The second reading unit is configured to read a second surface of the document sheet based on the second count value. The second surface is opposite surface of the first surface. When the first count value reaches a prescribed first value, both the first counter value and the second count value are reset. | 11-03-2011 |
20120105919 | IMAGE-READING DEVICE THAT READS IMAGES BY USING SPREAD-SPECTRUM CLOCK - In an image-reading device, a counting unit counts a number of clock cycles of a spread-spectrum clock as a counter value. A correcting unit corrects one of the counter value and a reference clock cycle number based on a phase detected by the phase detecting unit when the counting unit counts. A comparing unit compares the counter value and the reference clock cycle number and determines whether the counter value and the reference clock cycle number satisfy a prescribed relationship. A time length setting unit sets a length of at least one of a reading time and an irradiation time based on: a timing when the counting unit starts counting to set the time length; and a timing when the comparing unit determines that the compared values satisfy the prescribed relationship, such that the time length set by the time length setting unit remains constant. | 05-03-2012 |
Patent application number | Description | Published |
20100261301 | COMPOUND SEMICONDUCTOR LIGHT-EMITTING DEVICE - A compound semiconductor light-emitting device has a light-emitting layer, on a substrate, wherein at least a part of a substrate portion of the device side surface has recessed portions in a side direction of the device. A method of producing the compound semiconductor light-emitting device includes the steps of: (a) forming a compound semiconductor layer including a light-emitting layer of an n-type or p-type compound semiconductor on a wafer that serves as a substrate, (b) arranging a negative electrode and a positive electrode at predetermined positions for passing a drive current through the light-emitting layer, (c) forming a separation zone for separating the individual light-emitting devices, (d) perforating many small holes linearly in the wafer that serves as the substrate along the separation zone, and (e) dividing the wafer into individual light-emitting devices along the separation zone, whereby a rugged shape which is periodical in a side direction and is undulating in a plane or cross section, is formed on a substrate side surface of the light-emitting device. | 10-14-2010 |
20110177642 | METHOD FOR MANUFACTURING SEMICONDUCTOR LIGHT-EMITTING ELEMENT - Provided is a method for manufacturing a semiconductor light-emitting element having a narrow wavelength distribution and comprising a substrate and a group III compound semiconductor layer formed thereon, the substrate being made of a material different from the compound semiconductor constituting the semiconductor layer. The method for manufacturing a semiconductor light-emitting element having a group III compound semiconductor layer is characterized by comprising a semiconductor layer-forming step wherein a group III compound semiconductor layer having a total thickness of not less than 8 μm is formed on a substrate ( | 07-21-2011 |
20120153346 | METHOD FOR PRODUCING RECYCLED SUBSTRATE, RECYCLED SUBSTRATE, NITRIDE SEMICONDUCTOR ELEMENT, AND LAMP - A laminated semiconductor wafer ( | 06-21-2012 |
20140048767 | SEMICONDUCTOR LIGHT EMITTING ELEMENT AND LIGHT EMITTING DEVICE - In a semiconductor light emitting element outputting light indicating green color by using a group III nitride semiconductor, light emission output is improved. A semiconductor light emitting element includes: an n-type cladding layer containing n-type impurities (Si); a light emitting layer laminated on the n-type cladding layer; and a p-type cladding layer containing p-type impurities and laminated on the light emitting layer. The light emitting layer has a barrier layer including first to fifth barrier layers and a well layer including first to fourth well layers, and has a multiple quantum well structure to sandwich one well layer by two barrier layers. The light emitting layer is configured such that the first to fourth well layers are set to have a composition to emit green light, and the first barrier layer is doped with n-type impurities, whereas the other barrier layers are not doped with n-type impurities. | 02-20-2014 |
20140103355 | SEMICONDUCTOR LIGHT EMITTING ELEMENT AND LIGHT EMITTING DEVICE - A semiconductor light emitting element includes: an n-type cladding layer containing n-type impurities (Si); a light emitting layer laminated on the n-type cladding layer; and a semiconductor layer containing a p-type cladding layer containing p-type impurities (Mg) and laminated on the light emitting layer. The light emitting layer has a multiple quantum well structure including first to fifth barrier layers and first to fourth well layers, and one well layer is sandwiched by two barrier layers. The thickness of the p-type cladding layer | 04-17-2014 |
20140209921 | SEMICONDUCTOR LIGHT EMITTING ELEMENT AND METHOD OF MANUFACTURING SEMICONDUCTOR LIGHT EMITTING ELEMENT - A semiconductor light emitting element includes: an n-type semiconductor layer; a light emitting layer alternately laminating plural barrier layers and plural well layers; and a p-type semiconductor layer, wherein the light emitting layer includes three or more well layers and four or more barrier layers, each well layer being sandwiched by the barrier layers, one barrier layer contacting the n-type semiconductor layer, and another barrier layer contacting the p-type semiconductor layer, the well layers include plural n-side well layers from the n-type semiconductor layer side and one p-side well layer on the p-type semiconductor layer side, and a V-shaped concave portion including inclined surfaces is generated in the light emitting layer, and in at least one of the n-side well layers, a concentration of atoms of In on the inclined surface is not more than 50% of a concentration of atoms of In in the n-side well layer. | 07-31-2014 |
Patent application number | Description | Published |
20130220212 | METHOD FOR MANUFACTURING N-TYPE SiC SINGLE CRYSTAL - A method for manufacturing an n-type SiC single crystal, enables the suppression of the variation in nitrogen concentration among a plurality of n-type SiC single crystal ingots manufactured. A method includes the steps of: providing a manufacturing apparatus ( | 08-29-2013 |
20130305981 | MANUFACTURING APPARATUS OF SiC SINGLE CRYSTAL, JIG FOR USE IN THE MANUFACTURING APPARATUS, AND METHOD FOR MANUFACTURING SiC SINGLE CRYSTAL - A manufacturing apparatus of a SiC single crystal which can suppress the generation of a polycrystal is provided. A jig ( | 11-21-2013 |
20140116324 | PRODUCTION APPARATUS AND PRODUCTION METHOD OF SiC SINGLE CRYSTAL - An apparatus for producing an SiC single crystal includes a crucible for accommodating an Si—C solution and a seed shaft having a lower end surface where an SiC seed crystal ( | 05-01-2014 |
20140116325 | PRODUCTION APPARATUS OF SiC SINGLE CRYSTAL BY SOLUTION GROWTH METHOD, METHOD FOR PRODUCING SiC SINGLE CRYSTAL USING THE PRODUCTION APPARATUS, AND CRUCIBLE USED IN THE PRODUCTION APPARATUS - A region of an SiC solution in the vicinity of an SiC seed crystal is cooled while suppressing the temperature variation in a peripheral region of the SiC solution. An apparatus includes a seed shaft and a crucible for an SiC solution. The seed shaft has a lower end surface for attachment to an SiC seed crystal. The crucible comprises a main body, an intermediate cover, and a top cover. The main body includes a first cylindrical portion and a bottom portion at a lower end portion of the first cylindrical portion. The intermediate cover is within the first cylindrical portion and above the liquid level of the SiC solution in the main body. The intermediate cover has a first through hole for the seed shaft. The top cover is disposed above the intermediate cover and has a second through hole for the seed shaft to pass through. | 05-01-2014 |
20140245945 | SIC SINGLE CRYSTAL MANUFACTURING METHOD - Provided is a SiC single crystal manufacturing method whereby growing speed improvement required to have high productivity can be achieved, while maintaining flat growth in which uniform single crystal growth can be continued at the time of growing a SiC single crystal using a solution method. In this SiC single crystal manufacturing method, a SiC single crystal is grown in a crucible from a Si solution containing C. The SiC single crystal manufacturing method is characterized in alternately repeating: a high supersaturation degree growing period, in which the growth is promoted by maintaining the supersaturation degree of C in the Si solution higher than an upper limit critical value at which flat growth can be maintained, said supersaturation degree being at a growing interface between the Si solution and a SiC single crystal being grown; and a low supersaturation degree growing period, in which the growth is promoted by maintaining the supersaturation degree lower than the critical value. | 09-04-2014 |
20150013590 | SEED CRYSTAL HOLDING SHAFT FOR USE IN SINGLE CRYSTAL PRODUCTION DEVICE, AND METHOD FOR PRODUCING SINGLE CRYSTAL - The aim of the present invention is to provide a seed crystal holding shaft that is used in a device for producing single crystals by a solution process that allows for faster growth of SiC single crystals than in the past, and a method for producing single crystals by the solution process. The seed crystal holding shaft used in a device for producing single crystals by the solution process is a seed crystal holding shaft wherein at least a portion of a side of the seed crystal holding shaft is covered by a reflectance member having a higher reflectance than the reflectance of the seed crystal holding shaft and the reflector member is disposed such that there is a space between the reflector member and the seed crystals held on the end face of the seed crystal holding shaft. | 01-15-2015 |
Patent application number | Description | Published |
20140311724 | PLATE HEAT EXCHANGER - A flow-path forming gasket is interposed between peripheries of each adjacent ones of stacked heat transfer plates; communicating-path forming gaskets are each installed, surrounding the passage holes in each adjacent ones of the heat transfer plates alternately; and thereby a first flow path adapted to pass a high-temperature fluid, a second flow path adapted to pass a low-temperature fluid, and communicating paths adapted to cause the fluids, respectively, to flow in and out of the first and second flow paths are formed alternately on opposite sides of each heat transfer plate. A drain hole is formed in each of the heat transfer plates to discharge fluid leaking from the first flow path, the second flow path, or the communicating path. The drain hole is surrounded by gaskets isolated from the first flow path, the second flow path, or the communicating path. A leakage flow path or a leakage collector is formed by the gaskets. | 10-23-2014 |
20140338870 | PLATE HEAT EXCHANGER - Heat transfer plates are stacked, each being provided with a plurality of passage holes, a flow-path forming gasket is interposed between peripheries of each adjacent ones of the heat transfer plates, thereby alternately forming a first flow path to pass a high-temperature fluid, a second fluid to pass a low-temperature fluid, and communicating paths to cause the fluids to flow in and out of the first flow path and the second flow path on opposite sides of each heat transfer plate, and communicating-path forming gaskets surrounding the passage holes are interposed between adjacent ones of the heat transfer plates, thereby forming a communicating path to cause a fluid to flow in and out of the first flow path and a communicating path to cause a fluid to flow in and out the second flow path. Each communicating-path forming gasket is made up of inner and outer gasket members arranged in two lines, the inner gasket member surrounding the passage holes while the outer gasket member surrounding the inner gasket member. | 11-20-2014 |
20140367075 | PLATE HEAT EXCHANGER - To provide a plate heat exchanger free from degradation of gaskets which form a flow path through which a high-temperature fluid flows. In the plate heat exchanger, a plurality of heat transfer plates | 12-18-2014 |
Patent application number | Description | Published |
20110133196 | SEMICONDUCTOR DEVICE - An object is to provide a highly reliable transistor and a semiconductor device including the transistor. A semiconductor device including a gate electrode; a gate insulating film over the gate electrode; an oxide semiconductor film over the gate insulating film; and a source electrode and a drain electrode over the oxide semiconductor film, in which activation energy of the oxide semiconductor film obtained from temperature dependence of a current (on-state current) flowing between the source electrode and the drain electrode when a voltage greater than or equal to a threshold voltage is applied to the gate electrode is greater than or equal to 0 meV and less than or equal to 25 meV, is provided. | 06-09-2011 |
20110175883 | DRIVING METHOD OF LIQUID CRYSTAL DISPLAY DEVICE - It is an object to provide a liquid crystal display device and a driving method of a liquid crystal display device in each of which deterioration of an image display function can be suppressed and power consumption can be sufficiently reduced. In the liquid crystal display device, a fixed potential is input to a capacitor before a power source is turned off, so that a potential difference between electrodes of the capacitor disappears (capacitance becomes almost zero) such that electric field is not applied to liquid crystals, whereby the liquid crystals are in an initial state. When the supply of the power source is stopped after an initial-state image is displayed, unnecessary electric field is not continuously applied to the liquid crystals in an off state, whereby the liquid crystals can be in the stable initial state; therefore, the liquid crystals can be prevented from deteriorating. | 07-21-2011 |
20110216876 | PULSE SIGNAL OUTPUT CIRCUIT AND SHIFT REGISTER - An object is to provide a pulse signal output circuit capable of operating stably and a shift register including the pulse signal output circuit. A pulse signal output circuit according to one embodiment of the disclosed invention includes first to tenth transistors. The ratio W/L of the channel width W to the channel length L of the first transistor and W/L of the third transistor are each larger than W/L of the sixth transistor. W/L of the fifth transistor is larger than W/L of the sixth transistor. W/L of the fifth transistor is equal to W/L of the seventh transistor. W/L of the third transistor is larger than W/L of the fourth transistor. With such a structure, a pulse signal output circuit capable of operating stably and a shift register including the pulse signal output circuit can be provided. | 09-08-2011 |
20110285688 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display device, amplitude voltage of an image signal written into a signal line can be decreased. A liquid crystal display device in which frame inversion driving is performed includes pixels each including a liquid crystal element and a transistor that controls voltage applied to a first electrode of the liquid crystal element. A scan line is electrically connected to gates of transistors in pixels in a corresponding row. A common line is electrically connected to second electrodes of liquid crystal elements in pixels in the corresponding row. In a first frame period, a first potential is sequentially supplied to the common lines in synchronization with sequential selection of the scan lines. In a second frame period adjacent to the first frame period, a second potential different from the first potential is sequentially supplied to the common lines in synchronization with sequential selection of the scan lines. | 11-24-2011 |
20120032942 | LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD OF THE SAME - Provided is a liquid crystal display device having a pixel including a transistor and a liquid crystal element and a protection circuit electrically connected to one of a source and a drain of the transistor through a data line. The protection circuit includes a first terminal supplied with a first power supply potential and a second terminal supplied with a second power supply potential higher than the first power supply potential. In a moving image display mode, an image signal is input from the data line to the liquid crystal element through the transistor, and the first power supply potential is set at the first potential. In a still image display mode, supply of the image signal is stopped, and the first power supply potential is set at the second potential. The second potential is substantially the same as the minimum value of the image signal. | 02-09-2012 |
20120061665 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - A photolithography step and an etching step for forming an island-shaped semiconductor layer is omitted, and a liquid crystal display device is manufactured through the following four photolithography steps: a step for forming a gate electrode (including a wiring or the like formed from the same layer), a step for forming a source electrode and a drain electrode (including a wiring or the like formed from the same layer), a step for forming a contact hole (including removal of an insulating layer or the like in a region other than the contact hole), and a step for forming a pixel electrode (including a wiring or the like formed from the same layer). In the step of forming the contact hole, a groove portion in which the semiconductor layer is removed is formed, so that formation of parasitic channels is prevented. | 03-15-2012 |
20130021239 | DISPLAY DEVICE - A display device includes a display panel including a plurality of pixels, a shutter panel including a driver circuit, a liquid crystal, and light-transmitting electrodes provided in a striped manner, and a positional data detector configured to detect a positional data of a viewer. The shutter panel is provided over a display surface side of the display panel, a width of one of the light-transmitting electrodes in the shutter panel is smaller than that of one of the plurality of pixels, and the driver circuit in the shutter panel is configured to selectively output signals for forming a parallax barrier to the light-transmitting electrodes. The parallax barrier is capable of changing its shape in accordance with the detected positional data. | 01-24-2013 |
20130241431 | LIGHT-EMITTING DEVICE AND METHOD FOR DRIVING THE SAME - Provided is a light-emitting device which can prevent appearance of an after-image after power on. Before or after supply of a power voltage applied to a light-emitting element is cut, a potential of a gate electrode of a transistor controlling the supply of the power voltage to the light-emitting element is initialized. Specifically, in the case where the transistor is n-channel type, the potential of the gate electrode is initialized so that a gate voltage is equal to or lower than a threshold voltage. In the case where the transistor is p-channel type, the potential of the gate electrode is initialized so that the gate voltage is equal to or higher than the threshold voltage. | 09-19-2013 |
20130277671 | SEMICONDUCTOR DEVICE - An object is to provide a highly reliable transistor and a semiconductor device including the transistor. A semiconductor device including a gate electrode; a gate insulating film over the gate electrode; an oxide semiconductor film over the gate insulating film; and a source electrode and a drain electrode over the oxide semiconductor film, in which activation energy of the oxide semiconductor film obtained from temperature dependence of a current (on-state current) flowing between the source electrode and the drain electrode when a voltage greater than or equal to a threshold voltage is applied to the gate electrode is greater than or equal to 0 meV and less than or equal to 25 meV, is provided. | 10-24-2013 |
20140240631 | DISPLAY DEVICE AND ELECTRONIC DEVICE - Transistors each include a gate electrode, a gate insulating layer over the gate electrode, an oxide semiconductor layer over the gate insulating layer, and a source electrode and a drain electrode over the oxide semiconductor layer. A driver circuit portion includes first to third wirings formed in the same step as the gate electrode, fourth to sixth wirings formed in the same step as the source electrode and the drain electrode, a seventh wiring formed in the same step as a pixel electrode, a first region where the second wiring intersects with the fifth wiring, and a second region where the third wiring intersects with the sixth wiring. The first wiring is connected to the fourth wiring through the seventh wiring. A distance between the wirings in the second region is longer than that in the first region. | 08-28-2014 |
20150069390 | SEMICONDUCTOR DEVICE - An object is to provide a highly reliable transistor and a semiconductor device including the transistor. A semiconductor device including a gate electrode; a gate insulating film over the gate electrode; an oxide semiconductor film over the gate insulating film; and a source electrode and a drain electrode over the oxide semiconductor film, in which activation energy of the oxide semiconductor film obtained from temperature dependence of a current (on-state current) flowing between the source electrode and the drain electrode when a voltage greater than or equal to a threshold voltage is applied to the gate electrode is greater than or equal to 0 meV and less than or equal to 25 meV, is provided. | 03-12-2015 |
Patent application number | Description | Published |
20110143093 | PROCESS FOR PRODUCING GRAPHENE/SiC COMPOSITE MATERIAL AND GRAPHENE/SiC COMPOSITE MATERIAL OBTAINED THEREBY - A process for advantageously producing a graphene/SiC composite material is provided in which a large-area graphene layer that is flat in an atomic level is formed on a SiC single crystal substrate. The process for producing a graphene/SiC composite material in which at least one graphene layer is formed on a SiC single crystal substrate, comprising the steps of: removing an oxide film that is formed by natural oxidation and covers a surface of the SiC single crystal substrate, thereby exposing a Si surface of the SiC single crystal substrate, heating the SiC single crystal substrate with the Si surface exposed under an oxygen atmosphere, thereby forming a SiO | 06-16-2011 |
20120145070 | PROCESS FOR PRODUCING GRAPHENE/SiC COMPOSITE MATERIAL AND GRAPHENE/SiC COMPOSITE MATERIAL OBTAINED THEREBY - A process for advantageously producing a graphene/SiC composite material is provided in which a large-area graphene layer that is flat in an atomic level is formed on a SiC single crystal substrate. The process for producing a graphene/SiC composite material in which at least one graphene layer is formed on a SiC single crystal substrate, comprising the steps of: removing an oxide film that is formed by natural oxidation and covers a surface of the SIC single crystal substrate, thereby exposing a Si surface of the SiC single crystal substrate, heating the SiC single crystal substrate with the Si surface exposed under an oxygen atmosphere, thereby forming a SiO | 06-14-2012 |
20140035715 | Heat Float Switch - A heat float switch includes a first member and a second member. The first member includes a base member and a carbon nanotube layer formed on a surface of the base member. The heat float switch switches states between a connected state in which the carbon nanotube layer of the first member is in contact with the second member and an unconnected state in which the carbon nanotube layer of the first member is not in contact with the second member. | 02-06-2014 |
Patent application number | Description | Published |
20100177147 | INKJET RECORDING APPARATUS - An inkjet recording apparatus comprises an inkjet recording head, an ink-testing unit having an ink-test chamber, a pressure-vibration generating unit that generates a pressure vibration in the ink-test chamber, a pressure-vibration detecting unit that detects the pressure vibration, an ink inlet that introduces ink into the ink-test chamber and an ink outlet through which ink is discharged from the ink-test chamber. Failures of ink ejection can be prevented by detecting cavitation cores by the ink-test chamber and removing ink containing the cavitation cores from ink supplied to the inkjet recording head. | 07-15-2010 |
20100245475 | INKJET PRINT HEAD AND METHOD THEREFOR - An inkjet print head is fabricated by, fist, forming an electrode and two layers of a protection film composed of an inorganic insulating film and an organic insulating film over the electrode within a groove of a piezoelectric member, adhering a top board to the piezoelectric member covering the groove to form a pressure chamber, adhering a polyimide plate so as to cover the groove, and then forming a nozzle in the polyimide plate by the excimer laser processing aligning to the pressure chamber. Herein, the excimer laser light penetrates the polyimide plate to form a nozzle, and further proceeds to be emitted on the organic insulating film. Consequently, the part of the organic insulating film irradiated by the laser light is damaged. To prevent the damage of the organic insulating film, the thickness of the inorganic insulating film in the part to which the excimer laser light is emitted is prepared to be 0.5 μm or more. | 09-30-2010 |
20110063350 | INK JET APPARATUS AND METHOD OF REDUCING CROSSTALK - When ink is ejected from any one of a plurality of pressure chambers, an electric field pulse, which corresponds to an electric field pulse to be applied to a partition wall of the pressure chamber which is to eject the ink, and has at least one square wave, which is in a direction opposite to that of the electric field pulse and has a pulse width corresponding to the electric field pulse, is applied to a partition wall adjacent to the partition wall of the pressure chamber which is to eject the ink. | 03-17-2011 |
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 |
20130222481 | INKJET HEAD AND METHOD OF MANUFACTURING THE SAME - An inkjet head includes a nozzle plate in which a nozzle having an ejection hole for ink is formed, an ink pressure chamber for supplying the ink to the nozzle, a first oscillating plate formed to surround the ejection hole of the nozzle of the nozzle plate, a first electrode formed to surround the nozzle of the nozzle plate and that is in contact with the first oscillating plate, a piezoelectric film configured to surround the nozzle of the nozzle plate and that is in contact with the first electrode, a second electrode formed to surround the nozzle of the nozzle plate and that is in contact with the piezoelectric film or the first oscillating plate, and a second oscillating plate formed to surround the nozzle of the nozzle plate and that is in contact with the first electrode, the second electrode, or the first oscillating plate. | 08-29-2013 |
20130222484 | INKJET HEAD AND METHOD OF MANUFACTURING THE SAME - According to an embodiment, an inkjet head includes a nozzle from which ink is ejected, an ink pressure chamber, an oscillating plate, a first electrode, a piezoelectric layer, a second electrode, and a passivation layer. The ink pressure chamber is provided in the inkjet head to supply ink to the nozzle. The oscillating plate is formed to surround the nozzle. The first electrode is formed to surround the nozzle and to be in contact with the first oscillating plate. The piezoelectric layer is configured to surround the nozzle and to be in contact with the first electrode. The second electrode is formed to surround the nozzle and to be in contact with the piezoelectric layer. The passivation layer is formed to surround the nozzle and to be in contact with the first electrode, the second electrode, or the first oscillating plate. | 08-29-2013 |
20140063095 | INK JET HEAD - An ink jet head according to an embodiment comprises a substrate including a mounting surface and a pressure chamber, a vibration plate including a first surface fixed to the mounting surface and covering the pressure chamber, and a second surface opposite the first surface. The ink jet head further comprises a first electrode on the second surface, a piezoelectric body overlapping the first electrode, a second electrode overlapping the piezoelectric body, and a protective film provided on the second surface. The inkjet head further comprises a nozzle in communication with the pressure chamber and configured to discharge ink, and a drive circuit provided on the mounting surface of the substrate and configured to apply a drive voltage to the first electrode or the second electrode to deform the piezoelectric body and to change a volume of the pressure chamber. | 03-06-2014 |
20140063130 | INK JET HEAD AND IMAGE FORMING APPARATUS - An ink jet head according to an embodiment comprises a substrate including amounting surface and a pressure chamber open to the mounting surface, the substrate having a first expansion coefficient. The ink jet head further comprises a vibration plate including a first surface fixed to the mounting surface of the substrate, a second surface located on the opposite side of the first surface, an opening portion open to the pressure chamber, a first portion having a second expansion coefficient different from the first expansion coefficient, and a second portion having a third expansion coefficient different from the second expansion coefficient. The ink jet head further comprises a piezoelectric element provided on the second surface of the vibration plate and configured to deform the vibration plate to thereby change a volume of the pressure chamber. | 03-06-2014 |
20140063131 | INK JET HEAD AND IMAGE FORMING APPARATUS - An ink jet head comprises a substrate including a mounting surface and a pressure chamber open to the mounting surface. The ink jet head further comprises a nozzle plate including an inner surface fixed to the mounting surface and covering the pressure chamber, a nozzle open to the pressure chamber, and a piezoelectric element surrounding the nozzle and configured to deform to thereby change a volume of the pressure chamber. The ink jet head further comprises a deformation control unit disposed on and extending from the inner surface of the nozzle plate and surrounding the nozzle, the deformation control unit configured to cause deformation of the piezoelectric element to be substantially symmetric with respect to the nozzle. | 03-06-2014 |
Patent application number | Description | Published |
20100238215 | INK JET HEAD, NOZZLE PLATE THEREOF AND PRINTING METHOD USING THE SAME - Disclosed is an ink jet head for ejecting an ink droplet to form an image on a recording medium, including a pressure chamber to which ink is supplied, an actuator which applies a pressure on the ink filled in the pressure chamber to eject the ink droplet, a circuit applying to the actuator a drive-waveform for sequentially ejecting one or more ink droplets to form one pixel, the one ink droplet having V in volume, and a nozzle plate which has a nozzle fluidly communicating with the pressure chamber to eject ink droplet therefrom, the nozzle having a stepped inner surface shaped to include an inlet communicating with the pressure chamber and having a first sectional area in an orthogonal plane to ink-ejecting direction, and to include an outlet communicating with the inlet and having a length Ln | 09-23-2010 |
20120056947 | INKJET HEAD AND METHOD OF MANUFACTURING THE SAME - An inkjet head including: a nozzle plate including: a nozzle configured to eject ink; a first electrode formed to surround the nozzle; a piezoelectric film provided to surround the nozzle and in contact with the first electrode; and a second electrode formed in contact with the piezoelectric film and made of a metal material forming the nozzle; and an ink supply path for supplying the ink to the nozzle. | 03-08-2012 |
20130235123 | INK-JET HEAD AND MANUFACTURING METHOD OF THE SAME - According to embodiments, a manufacturing method for an ink-jet head is disclosed. The method comprises forming an ink pressure chamber, forming an oscillating plate, and forming, on the oscillating plate, a first electrode having a predetermined footprint. The method further comprises forming, on the oscillating plate and on the first electrode, a piezoelectric film having a footprint that is geometrically similar to the predetermined footprint, forming, on the oscillating plate and the piezoelectric film, a second electrode having a footprint that is geometrically similar to the predetermined footprint, and forming a nozzle in the oscillating plate. | 09-12-2013 |
20130271530 | INK JET HEAD AND MANUFACTURING METHOD OF THE SAME - An ink jet head includes: a vibration plates having a plurality of openings of a first diameter; ink pressure chambers, each arranged on one surface of the corresponding vibration plate; first electrodes, each formed on the other surface of the vibration plate; a plurality of piezoelectric layers, each portion of which is formed on a first electrode such that it surrounds the opening and that, when a driving voltage is applied, deforms the vibration plate to expand or contract the ink pressure chamber; second electrodes formed on each piezoelectric layer; a protective layer which is at least formed on the vibration plate and the second electrode and has a nozzle for ejecting the ink having a diameter smaller than the first diameter extending therethrough and through the opening; and an ink-feeding mechanism that feeds the ink into the ink pressure chambers. | 10-17-2013 |
20140071204 | INK JET HEAD - According to one embodiment, an ink jet head includes an ink pressure chamber, a nozzle hole, a vibrating plate, an actuator, and electrodes. The ink pressure chamber stores ink which is discharged through the nozzle hole. The vibrating plate is formed to surround the nozzle hole. The actuator drives the vibrating plate. The electrodes are formed to be axially symmetrical with respect to the nozzle hole and drive the actuator. | 03-13-2014 |
20140253639 | INK JET HEAD AND INK JET PRINTING APPARATUS HAVING THE SAME - An ink jet head includes a pressure chamber formed to hold ink, and a nozzle plate including a vibrating plate forming a bottom wall of the pressure chamber, a driving element that is provided on a surface of the vibrating plate and configured to cause a volume of the pressure chamber to be changed by deforming the vibrating plate upon application of voltage to the driving element, an opening through which the ink held in the pressure chamber is discharged in response to the change of the volume of the pressure chamber, and an insulating layer disposed between the driving element and the opening. | 09-11-2014 |
20140253640 | INK JET HEAD AND INK JET PRINTING APPARATUS HAVING THE SAME - An ink jet head includes a chamber unit including a pressure chamber formed to hold ink, and a nozzle plate unit. The nozzle plate includes a vibrating plate forming a bottom wall of the pressure chamber, a driving element that is provided on a bottom surface of the vibrating plate and configured to cause a volume of the pressure chamber to be changed by deforming the vibrating plate upon application of voltage to the driving element, and a protective layer disposed on a bottom surface of the vibrating plate and a bottom surface of the driving element. The protective layer has a first thickness between a bottom surface thereof and the bottom surface of the vibrating plate and second thickness between a bottom surface thereof and the bottom surface of the driving element, and the first thickness is greater than the second thickness. | 09-11-2014 |
20140267498 | INK JET HEAD AND INK JET PRINTING APPARATUS HAVING THE SAME - An ink jet head includes a pressure chamber formed to hold ink, a vibrating plate, a driving element, and a protective film covering the driving element. The vibrating plate is provided at one end of the pressure chamber, and has a first opening through which the ink held in the pressure chamber is discharged. The driving element is provided on a surface of the vibrating plate and is configured to cause a volume of the pressure chamber to be changed by deforming the vibrating plate upon application of voltage to the driving element. The protective film has a second opening aligned with the first opening and through which the ink held in the pressure chamber is discharged. | 09-18-2014 |
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 |
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 |
Patent application number | Description | Published |
20120062633 | DRIVING APPARATUS AND DRIVING METHOD OF INKJET HEAD - According to one embodiment, a driving apparatus of an inkjet head includes a drive signal output unit, an ejection pulse number decision unit, a pulse addition determination unit, and a drive signal generation unit. The ejection pulse number decision unit decides the number of ejection pulses based on a gradation value of print data. When the pulse addition determination unit has determined that the control pulse is not to be added, the drive signal generation unit generates a drive signal including ejection pulses whose number has been decided by the ejection pulse number decision unit. When the pulse addition determination unit has determined that the control pulse is to be added, the drive signal generation unit generates a drive signal including ejection pulses whose number is smaller than the number decided by the ejection pulse number decision unit. | 03-15-2012 |
20130063522 | INKJET HEAD AND INKJET RECORDING APPARATUS - According to one embodiment, an inkjet head includes nozzle rows. Each of the nozzle rows includes nozzles. The nozzles are arranged at a fixed pitch in a direction orthogonal to a conveying direction of a recording medium and arranged spaced apart from one another in the conveying direction in each of the nozzle rows. At least one nozzle located at one end of each of the nozzle rows is provided on an upstream side along the conveying direction than another nozzle provided closest to the nozzle in an arraying direction of the nozzles. At least one nozzle located at the other end of each of the nozzle rows is provided on a downstream side along the conveying direction than another nozzle provided closest to the nozzle in the arraying direction of the nozzles. | 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 |
20130070030 | INKJET HEAD AND INKJET RECORDING APPARATUS - According to one embodiment, an inkjet head includes a substrate, a nozzle plate, and an actuator incorporated in the nozzle plate. The nozzle plate includes a nozzle provided to communicate with an ink pressure chamber, and a vibrating plate exposed to the ink pressure chamber. The actuator displaces the vibrating plate in the thickness direction to pressurize ink in the ink pressure chamber via the vibrating plate and eject the ink from the nozzle. The ink pressure chamber has a first dimension in the thickness direction of the substrate and a second dimension in a direction orthogonal to the thickness direction of the substrate. The first dimension is larger than the second dimension. | 03-21-2013 |
20140320569 | INKJET HEAD AND INKJET RECORDING APPARATUS - According to one embodiment, an inkjet head includes a substrate, a nozzle plate, and an actuator incorporated in the nozzle plate. The nozzle plate includes a nozzle provided to communicate with an ink pressure chamber, and a vibrating plate exposed to the ink pressure chamber. The actuator displaces the vibrating plate in the thickness direction to pressurize ink in the ink pressure chamber via the vibrating plate and eject the ink from the nozzle. | 10-30-2014 |
Patent application number | Description | Published |
20080290407 | SEMICONDUCTOR DEVICE - A semiconductor device has a semiconductor substrate, an insulating film, a semiconductor element and a resistance element. The semiconductor substrate has a first trench. The insulating film covers an inner surface of the first trench. The semiconductor element has an electrode. The resistance element is electrically connected to the electrode to form a resistance to a current flowing through the electrode, and is arranged in the first trench with the insulating film therebetween. Thereby, the semiconductor device can have a resistance element that has a small footprint and can pass a large current with high reliability. | 11-27-2008 |
20110140165 | HIGH VOLTAGE SEMICONDUCTOR DEVICE - A high voltage semiconductor device includes a semiconductor substrate, a p type base region in a first main surface, an n | 06-16-2011 |
20110140179 | SEMICONDUCTOR DEVICE - A semiconductor device includes: a rectifying element; an electrode pad electrically connected to the rectifying element; and a resistance and a depletion transistor arranged between the rectifying element and the electrode pad, and electrically connected to each other. The semiconductor device has a configuration in which the rectifying element, the resistance, the depletion transistor, and the electrode pad are serially connected. The semiconductor device is configured to generate a gate potential of the depletion transistor based on a difference in potential across the resistance and to produce a depletion layer in a channel of the depletion transistor based on the gate potential. As a result, a semiconductor device having reasonably large current at low voltage and small current at high voltage can be obtained. | 06-16-2011 |
20130105866 | SEMICONDUCTOR DEVICE | 05-02-2013 |
Patent application number | Description | Published |
20120279416 | RAILCAR BOGIE - A railcar bogie includes: a cross beam configured to support a carbody; a pair of front and rear axles respectively provided on front and rear sides of the cross beam so as to extend along a crosswise direction; bearings respectively provided on both crosswise-direction sides of each of the axles and configured to rotatably support the axles; bearing accommodating portions configured to respectively accommodate the bearings; and plate springs extending in a front-rear direction so as to be respectively supported by both crosswise-direction end portions of the cross beam, end portions of each of the plate springs being respectively supported by the bearing accommodating portions. Each of the bearing accommodating portions includes: a case portion configured to accommodate the bearing; and supporting portions configured to support the plate springs. The plate springs are supported by the supporting portions on a center side of the axle in the front-rear direction. | 11-08-2012 |
20140123870 | RAILCAR BOGIE - A plate spring bogie includes: a cross beam supporting a carbody of a railcar; a pair of front and rear axles sandwiching and respectively arranged in front of and behind the cross beam in a railcar longitudinal direction to extend in a railcar width direction; bearings respectively provided at both railcar width direction sides of each of the axles and rotatably supporting the axles; axle boxes respectively accommodating the bearings; plate springs extending in the railcar longitudinal direction to respectively support both railcar width direction end portions of the cross beam and each including both railcar longitudinal direction end portions respectively supported by the axle boxes; and an auxiliary supporting mechanism supporting the railcar width direction end portion of the cross beam in a case where the railcar width direction end portion of the cross beam is displaced downward beyond a predetermined elastic deformation range of the plate spring. | 05-08-2014 |
20140137765 | RAILCAR BOGIE - A railcar bogie includes: a cross beam supporting a carbody; a pair of front and rear axles sandwiching and arranged in front of and behind the cross beam in a railcar longitudinal direction to extend in a railcar width direction; bearings provided at both railcar width direction sides of each and rotatably supporting the axles; axle boxes accommodating the bearings; side members extending in the railcar longitudinal direction supporting both railcar width direction end portions of the cross beam and each including both railcar longitudinal direction end portions supported by the axle boxes; contact members provided at both railcar width direction end portions and disposed on railcar longitudinal direction middle portions of the side members so as not to be fixed to the side members in an upper-lower direction; and supporting members provided at the axle boxes and supporting the railcar longitudinal direction end portions of the side members. | 05-22-2014 |
20140144347 | RAILCAR BOGIE - A plate spring bogie includes: a cross beam supporting a carbody of a railcar; a pair of front and rear axles sandwiching and respectively arranged in front of and behind the cross beam in a railcar longitudinal direction to extend in a railcar width direction; bearings respectively provided at both railcar width direction sides of each of the axles and rotatably supporting the axles; axle boxes respectively accommodating the bearings; plate springs extending in the railcar longitudinal direction to respectively support both railcar width direction end portions of the cross beam and each including both railcar longitudinal direction end portions respectively supported by the axle boxes; and an auxiliary supporting mechanism supporting the railcar width direction end portion of the cross beam in a case where the railcar width direction end portion of the cross beam is displaced downward beyond a predetermined elastic deformation range of the plate spring. | 05-29-2014 |
Patent application number | Description | Published |
20090237713 | Print managing apparatus, print managing method, and program - A print managing apparatus is provided, which is able to reduce the possibility of information leakage due to the printed material, without implementing a new function in the network printer. When there is a directive to perform printing, the print managing apparatus generates a release key, incorporates the generated release key in the print data, and transfers the print data to the network printer. Then, the print managing apparatus displays on the display device, a screen prompting for a release key that corresponds to the release key, which is printed on a printed medium together with the print data. | 09-24-2009 |
20130013527 | IMMIGRATION CONTROL SYSTEM - The present invention provides a system and a method for speeding up immigration. In first immigration, first biometric information is stored in a immigration biometric information DB. A normal immigration client terminal displays a first result of comparing an ID information watch list with a biometric information watch list. In subsequent second immigration, the first biometric information in the immigration biometric information DB is compared with second biometric information obtained by a simplified immigration client terminal. Then, the simplified immigration client terminal displays a second result of comparing the first biometric information with the watch list information that is added after the first comparison is done. Thus even if the number of registrations in a watch list database is large, a small amount of similar watch list information is displayed, reducing the time for checking the results by the operator. | 01-10-2013 |
Patent application number | Description | Published |
20080239346 | COPY MACHINE CONTROL APPARATUS AND COPY MACHINE CONTROL METHOD - A copy machine control apparatus that can realize copy management of a print, editing a duplicate, management of distribution destinations of a duplicate, and control of outward transmission of a duplicate, by the use of a conventional digital copy machine. The copy machine control apparatus acquires a scan image of a print from a digital copy machine, processes the acquired scan image, and thereafter returns the processed scan image to the digital copy machine to print the processed scan image on a substrate. | 10-02-2008 |
20090174893 | PRINT MANAGEMENT SYSTEM AND METHOD - A print management system is provided with a printer having a tag reader that reads a unique identifier of an IC tag attached to a medium, a log server that acquires information related to printing on the medium as a log, an ID management server that receives the identifier read by the tag reader, links the identifier to the time of printing on the medium or time at which the information of the IC tag is received and holds them in a storage and a print log integrating server that transmits the identifier of the IC tag attached to the medium to the ID management server, acquires the time at which the identifier is received from the ID management server, acquires logs in the vicinity of the time from the log server, links the log and the medium, stores and manages them in the storage. | 07-09-2009 |
Patent application number | Description | Published |
20100237726 | Stator structure and rotating electrical machine using the same - The invention provides a rotating electrical machine provided with stable rotation characteristics for enabling each core to be reliably fixed in arranging a plurality of cores annularly around the rotor even when the dimensional error occurs in manufacturing accuracy of each core, causing each division core itself to enhance the cooling property, and resolving instability of magnetic reluctance between division cores, where the rotating electrical machine has a plurality of stator cores obtained by laminating electromagnetic steel plates, winding coils wound around the stator cores via insulators, a pair of first and second bracket members that hold the plurality of stator cores from the front and back in the rotary shaft direction of the magnet rotor, and a fastening member that couples the first and second bracket members, in the first bracket member is formed a first contact surface for striking one end face of each of the stator cores to regulate so as to arrange the plurality of stator cores annularly, in the second bracket is formed a second contact surface for striking the other end faces of the stator cores to regulate, the first contact surface constitutes a reference plane to align one end faces of the plurality of stator cores on the same plane, the second contact surface is formed of a deformation surface deformable to follow the other end faces of the plurality of stator cores, and at least one of the pair of first and second brackets is formed of a ring-shaped magnetic material for magnetically coupling between the division cores. | 09-23-2010 |
20130169090 | MOTOR - A brush motor includes a case, a rotor containing a wiring portion wound around an iron core fixed to a shaft, a bearing making a sliding contact with the shaft to support the shaft, and a holder holding the bearing. The holder is made of resin, and includes a central portion with a cylindrical shape, containing an inner circumferential side into which the bearing is inserted, and a top portion protruding from an opening formed in the case; and an outer circumferential portion shielding the inner surface side of the exterior case and the winding portion. Thereby, the reliability of the motor can be improved. | 07-04-2013 |
Patent application number | Description | Published |
20100174472 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A knock control apparatus includes: a knock sensor for detecting knock of an internal combustion engine; a signal processing section for calculating a knock intensity; and knock determination level setting sections: for calculating an average value of the knock intensity; for calculating, based on the average value, an overall variance of the knock intensity of an entirety of a frequency distribution, a higher variance of the knock intensity above the average value, and a lower variance of the knock intensity below the average value; for calculating a standard deviation of the knock intensity from the overall variance; for presetting a value allowing the frequency distribution of the knock intensity to be a predetermined confidence interval as a confidence coefficient; and for setting a sum of the average value and a value obtained by multiplying the standard deviation by the corrected confidence coefficient as a knock determination level. | 07-08-2010 |
20110093186 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - Control apparatus for an internal combustion engine including: a second knock detection unit for detecting occurrence of a second knock due to an effective compression ratio when ignition timing is on a retard side of a predetermined value in the case where a first knock is detected; a second knock suppression unit for suppressing the second knock when the second knock is detected; a first abnormal ignition detection means for detecting occurrence of first abnormal ignition due to the pre-ignition or the post-ignition when a knock intensity of the second knock is equal to or larger than a predetermined value; and a first abnormal ignition suppression unit for suppressing the first abnormal ignition by performing fuel control for the internal combustion engine when the first abnormal ignition is detected. | 04-21-2011 |
20120073543 | KNOCK CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A knock correction amount computation portion computes, on the basis of intensity of a knock in a case where the presence of an occurrence of the knock is determined, a knock correction amount by which to move a spark timing of the internal combustion engine to be on a retard side and returns the knock correction amount to be back on an advance side in a case where the absence of an occurrence of a knock is determined. In a case where a value of the knock correction amount to be on the retard side becomes equal to or exceeds a predetermined value, the knock correction amount computation portion limits and holds the knock correction amount at the predetermined value and returns the limited knock correction amount to be back on the advance side in a case where the absence of an occurrence of a knock is determined. | 03-29-2012 |
20120080008 | KNOCK CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A knock control apparatus for internal combustion engine includes: a knock signal normalization unit that normalizes a knock signal extracted from an output signal of a knock sensor; a knock determination threshold setting unit that sets a knock determination threshold on the basis of the normalized knock signal; a knock intensity computation unit that calculates knock intensity on the basis of the normalized knock signal and the set knock determination threshold; a knock determination unit that determines a presence or absence of a knock on the basis of the calculated knock intensity; and a knock correction amount computation unit that calculates a knock correction amount to correct the calculated knock intensity in a case where an occurrence of a knock is determined. The knock signal normalization unit normalizes a standard deviation of the knock signal by dividing the knock signal by an average value of the knock signal. | 04-05-2012 |
20120192833 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS - An operation status value detection unit detects two or more operation status values indicating an operation status of an internal combustion engine. A filtering processing unit applies filtering processing to the detected operation status values, and an operation status value difference calculation unit calculates the difference between the filter-processed operation status value and the corresponding non-filter-processed operation status value so as to calculate two or more operation status value differences. An operation status value difference normalization unit normalizes the two or more operation status value differences, based on predetermined reference values for the two or more operation status values, so as to calculate two or more normalized operation status value differences; and a transient correction unit corrects a control amount for controlling output of the internal combustion engine, based thereon, when the engine is in a transient-operation mode. | 08-02-2012 |
20120192835 | KNOCK CONTROL DEVICE FOR ENGINE - A knock control device is provided in which erroneous knock detection can be reduced by suppressing sudden knock signal changes due to noise, without causing any increase in the number of matching steps, deterioration in the S/N in knock detection and decrease in detection performing frequency. In the knock control device, an open gain is applied to the detected signal only during a knock detection window set in advance by a knock window setting means. The window corresponds to a period in which vibration due to knock arises. During other periods, either a closed gain or an interpolated gain value is applied to the detected signal. | 08-02-2012 |
20120266844 | CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE - A control device of an internal combustion engine includes a filter processing portion which performs a filter processing on the vibration level extracted by the vibration level extraction portion, and calculates a vibration level after the filter processing; and an abnormal ignition suppression control portion which compares the vibration level after the filter processing to the abnormal ignition determination value when a retard correction equal to or greater than a predetermined value is performed by the knock control portion, in a case where it is determined that the vibration level after the filter processing is equal to or greater than the abnormal ignition determination value, determines that the abnormal ignition is generated in the internal combustion engine, corrects and controls the combustion control portion in a direction of suppressing the abnormal ignition. | 10-25-2012 |
20130151127 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS - An internal combustion engine control apparatus includes a pseudo knock determination unit that determines whether or not a pseudo knock has been produced in a knock detection window, based on at least one of the frequency, a status amount indicating a rotation speed of the internal combustion engine, a status amount indicating a load of the internal combustion engine, and a status amount indicating an air-fuel ratio of the internal combustion engine; and a moving-average processing unit that sets a second period to a period that is approximately the same as a first period, in the case where it has been determined that the pseudo knock was not produced, and that does not implement moving-averaging or sets the second period to a period that is narrower than the first period, in the case where it has been determined that a pseudo knock was produced. | 06-13-2013 |
20130151128 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS - There are provided a combustion start determination unit that determines whether or not the inner-cylinder state of an internal combustion engine has changed from a non-combustion state to a combustion state; and a filter coefficient changing demand unit that outputs a filter coefficient changing demand until a predetermined filter coefficient changing period elapses from the time instant when the combustion start determination unit determines that the inner-cylinder state of the internal combustion engine has changed from the non-combustion state to the combustion state to the time instant. Based on the filter coefficient changing demand, at least one of a background level calculation unit and a standard deviation calculation unit changes the value of a filter coefficient utilized in a filtering operation to the one with which a filtering effect is weakened. | 06-13-2013 |
20130166183 | KNOCK CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A knock control apparatus for an internal combustion engine includes a knock signal normalization portion that normalizes a knock signal using base statistics calculated on the basis of the knock signal. The knock signal normalization portion calculates base statistics on the basis of a last value and a current value of the knock signal and normalizes the knock signal using a base statistic interpolated according to an operating state. | 06-27-2013 |
20130192343 | KNOCK DETECTION DEVICE OF INTERNAL COMBUSTION ENGINE - In order to obtain a knock detection device of an internal combustion engine which satisfies two objects of following capability and separation from a continuous knock generation state, when a background level is calculated by ((current background level)=(filter coefficient)×(previous background level)+(1−filter coefficient)×(output signal from knock sensor)), updating quantity of the background level is limited by ((1−filter coefficient)×(value not lower than maximum value of output signal from knock sensor at time when knock is not generated)). | 08-01-2013 |
20130218443 | KNOCK CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE - In a knock control device of an internal combustion engine equipped with a control unit which updates a background level based on an output signal from a knock sensor and detects the generation of a knock by comparing a variation of the background level with a knock determination value, a determination as to whether the knock is generated is performed by ((variation of first filter value of peak hold value)>((1−filter coefficient)/(1+filter coefficient)×(predetermined value larger than maximum value of variation of peak hold value in case where knock is not generated))). | 08-22-2013 |
20140251252 | COMPRESSION SELF-IGNITION ENGINE - A compression self-ignition engine is provided. The engine includes an engine body and an intake passage, and CI combustion is performable in a part of an engine operating range. The intake passage includes a high-temperature passage provided with a heater for heating intake air, a low-temperature passage provided with a cooler for cooling the intake air, a manifold section where the high-temperature and low-temperature passages merge together, and a downstream passage connecting the manifold section with the engine body. A throttle valve for adjusting a flow rate of the intake air is provided in each of the high-temperature and low-temperature passages. At least in an engine operating range where the CI combustion is performed, openings of the throttle valves are controlled to bring a temperature of the intake air within the manifold section into a predetermined temperature range, based on temperature conditions of the heater and the cooler, respectively. | 09-11-2014 |
Patent application number | Description | Published |
20120070716 | BATTERY PACK AND ELECTRICALLY POWERED VEHICLE PROVIDED WITH SAME - Provided is a battery pack that ensures sufficient sealing performance between a tray and a cover by arranging a necessary sealing member between a lower flange portion of the tray and an upper flange portion of the cover that are held in abutment with each other. The tray and the cover covering the tray constitute a packaging case of electric cells. At least a part of a facing surface of at least one of the lower flange portion of the tray and the upper flange portion of the cover that abut each other forms a non-abutting portion that is located apart from the facing surface of the opposite flange portion, and a sealing member is arranged on the non-abutting portion. | 03-22-2012 |
20120315520 | BATTERY PACK | 12-13-2012 |
20130157113 | ELECTRIC STORAGE DEVICE, MANUFACTURING METHOD OF ELECTRIC STORAGE DEVICE, AND BUS BAR USED FOR ELECTRIC STORAGE DEVICE - An electric storage device includes: electric storage elements including external terminals; and bus bars connected to the external terminals, wherein the bus bars include thin-walled portions, and the thin-walled portions and the external terminals are welded together. | 06-20-2013 |
20130183543 | POWER SOURCE UNIT - A power source unit includes a battery main body including at least one battery cell, an electric device located on the battery main body, and a wall located along a lateral side of parts included in the electric device. The wall is taller than a height of the parts. | 07-18-2013 |
20130183544 | BATTERY MODULE AND POWER SOURCE UNIT - A battery pack includes a stack including a plurality of battery cells aligned, holding plates respectively provided on side faces of the stack for holding the stack, a coupling member disposed along a direction in which the battery cells are aligned and fixed to the holding plates to bind the plurality of battery cells, and an insulating member provided between the coupling member and the plurality of battery cells. The insulating member includes projecting portions disposed adjacent to and along at least one of side faces of the coupling member and projecting toward the coupling member. | 07-18-2013 |
20130183573 | POWER SOURCE UNIT - A power source unit includes a battery module including a stack and a coupling member that binds the stack, the stack including a plurality of battery cells aligned, and a container that accommodates therein the battery module. The container includes a projecting portion projecting from an inner wall of the container toward a surface of the battery module, and a top end portion of the projecting portion is located separately from the coupling member. | 07-18-2013 |
20130309539 | METHOD FOR PRODUCING ELECTRIC STORAGE DEVICE, SPACER AND ELECTRIC STORAGE DEVICE - A method for producing an electric storage device having a bus bar and an electric storage element equipped with an external terminal includes the steps of: arranging the electric storage element having the external terminal, positioning a resin member having either one of a receiving portion or a projection relative to the electric storage element, arranging the bus bar having the other one of the receiving portion or the projection on the external terminal, connecting the bus bar to the external terminal, and inserting the projection into the receiving portion in the step of arranging the bus bar. | 11-21-2013 |
20140093756 | ASSEMBLED BATTERY - An assembled battery includes plural electric cells, a covered member at least a portion of which is made of metal, and insulation cover. The covered member is disposed along side portions of the electric cells on which terminals are provided. The insulation cover includes a main portion interposed between the covered member and the side portions of the electric cells, and an auxiliary portion extending from the main portion along a projecting direction of the terminal. | 04-03-2014 |
20140093763 | ELECTRIC STORAGE APPARATUS - Provided is an electric storage apparatus including: a first external housing for holding at least one storage device that includes a first vertical wall portion for surrounding at least one electric storage device; and a second external housing including a second vertical wall portion for surrounding the first vertical wall portion and an open portion formed at an upper end. An outer surface of the first vertical wall portion is an inclined surface that is inclined to the second vertical wall portion, and one of an outer surface of the first vertical wall portion and an inner surface of the second vertical wall portion includes a protrusion portion that protrudes toward the other. | 04-03-2014 |
20140093765 | ELECTRIC STORAGE APPARATUS - Provided is an electric storage that includes at least one electric storage device, a first external housing for housing the at least one electric storage device, and a second external housing for housing the first external housing, wherein the first external housing and the second external housing respectively include engaging portions, which are engaged with each other. | 04-03-2014 |
20140141306 | ELECTRIC STORAGE APPARATUS - An electric storage apparatus includes a battery cell, an accessory, a holding member for holding the battery cell and the accessory so that the battery cell and the accessory are on opposite sides, and a fixing member for fixing the accessory to the holding member. A distance between the fixing member and the battery cell is set to be equal to or larger than a distance between the holding member and the battery cell. | 05-22-2014 |
Patent application number | Description | Published |
20120134518 | COVER UNIT COVERING OPENINGS AND AN ELECTRONIC DEVICE PROVIDED WITH THE COVER UNIT - A cover unit that is provided to an electronic device as a waterproof cover, the cover unit covering one or more openings formed in a housing of the electronic device with respect to a plurality of speakers, and comprising a frame member having a plurality of windows disposed therein, the windows facing the speakers in one-to-one correspondence, and a waterproof film covering the windows. Having such a structure, the cover unit covers the one or more openings formed in the housing, and has an advantageous effect of suppressing at least one of (i) an increase in parts composing an electronic device and (ii) an increase in distortion of sound. Additionally, since a vibration unit faces a corresponding one of the speakers, the unnecessary vibration of the vibration unit is inhibited, which leads to a reduction in the distortion of sound. | 05-31-2012 |
20120135787 | MOBILE PHONE AND ECHO REDUCTION METHOD THEREFORE - A foldable mobile phone relating to the present invention includes: a first housing that includes a speaker, a receiver and a receiver hole; and a second housing that includes a microphone and a microphone hole, the receiver hole and the microphone hole each being covered with a waterproof film, and the waterproof film that covers the receiver hole facing the microphone hole in a closed state, and the mobile phone comprises: a low-pass filter that is connected to an output terminal of the microphone and has a cut-off frequency of 1 kHz; and an echo canceller that is connected to an output terminal of the low-pass filter, and is operable to cancel, from components of a signal output from the low-pass filter, components of a signal that has been input to the speaker. | 05-31-2012 |
20120294454 | MOBILE TERMINAL AND EARPHONE IDENTIFYING METHOD - A mobile phone apparatus | 11-22-2012 |