Patent application number | Description | Published |
20110254147 | SEMICONDUCTOR EQUIPMENT AND METHOD OF MANUFACTURING THE SAME - To provide a semiconductor equipment having high heat-transfer effect and breakdown voltage, and a method of manufacturing the same. The semiconductor equipment includes: a sealed container; a stem connected to the sealed container via a stem peripheral portion; and a semiconductor chip mounted on a top surface of the stem, inside the sealed container. The semiconductor chip is electrically connected to a lead provided to the stem, the stem peripheral portion, which is of a material that is different from the material of stem and the same as the material of the sealed container, is bonded along a periphery of the stem, and the sealed container is filled with a working fluid including at least one of ethanol, a perfluorocarbon, and a fluoroether. | 10-20-2011 |
20110291111 | SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE MANUFACTURING METHOD - A chip size package includes: a radio frequency substrate having a radio frequency semiconductor circuit formed on a principal surface; a semiconductor cover substrate arranged at a position facing the principal surface of the radio frequency substrate; and a joining frame arranged in a manner such as to surround the radio frequency semiconductor circuit between the radio frequency substrate and the semiconductor cover substrate, the joining frame joining the radio frequency substrate and the semiconductor cover substrate, wherein: the radio frequency substrate further has a wire formed on a surface opposite to the principal surface; and the radio frequency semiconductor circuit and the wire are electrically connected to each other through a via hole penetrating through the radio frequency substrate in a thickness direction thereof. | 12-01-2011 |
20130147580 | ELECTROMAGNETIC RESONANCE COUPLER - An electromagnetic resonance coupler includes a transmission resonator provided on the transmission substrate and having a shape obtained by opening a loop shape including an inwardly recessed portion in part to make a transmission resonator slit, transmission wiring connected to the transmission resonator, a reception substrate, a reception resonator provided on the reception substrate and having the same size and shape as the transmission resonator, and reception wiring connected to the reception resonator. The transmission and reception resonators are symmetric with respect to a point and face each other so that their contours match. In the transmission resonator, at least part of wiring constituting the recessed portion is close to wiring other than the at least part of wiring at a distance less than or equal to four times the wiring width of the transmission resonator. | 06-13-2013 |
20130187477 | ELECTROMAGNETIC RESONANCE COUPLER - The electromagnetic resonance coupler includes: a transmission substrate; a reflective substrate; the first resonant wiring having an open loop shape having a first opening; a first input/output wiring connected to the first resonant wiring; the second resonant wiring provided inside the first resonant wiring and having an open loop shape having a second opening; a second input/output wiring connected to the second resonant wiring, the first resonant wiring, the first input/output wiring, the second resonant wiring, and the second input/output wiring being provided on the transmission substrate; and a reflection wiring provided on the reflective substrate and having a open loop shape having a third opening, in which, when viewed in a direction perpendicular to a main face of the transmission substrate, the reflection wiring and the first resonant wiring overlap and the reflection wiring and the second resonant wiring overlap. | 07-25-2013 |
20140002212 | ELECTROMAGNETIC RESONANCE COUPLER | 01-02-2014 |
20140049297 | GATE DRIVE CIRCUIT - A gate drive circuit includes: an input port for receiving a control signal; an output port; a capacitor connected to the output port; a modulation unit which generates (i) a first modulated signal indicating timing of a first logical value of the control signal and (ii) a second modulated signal indicating timing of at least a second logical value of the control signal; a first electromagnetic resonance coupler which wirelessly transmits the first modulated signal; a second electromagnetic resonance coupler which wirelessly transmits the second modulated signal; a first rectifier circuit which generates a first demodulated signal by demodulating the first modulated signal, and outputs the first demodulated signal to the output port; and a second rectifier circuit which generates a second demodulated signal by demodulating the second modulated signal, and outputs the second demodulated signal to the output port. | 02-20-2014 |
20140049338 | ELECTROMAGNETIC RESONANCE COUPLER - An electromagnetic resonance coupler including: a transmitting resonator provided on a transmission substrate and having an open loop shape having an opening, first wiring provided on the transmission substrate and connected to a first connection point on the transmitting resonator, a receiving resonator provided on the reception substrate, second wiring provided on the reception substrate and connected to a second connection point on the receiving resonator, and third wiring provided on the reception substrate and connected to a third connection point on the receiving resonator. When viewed in a direction perpendicular to a main surface of the transmission substrate, the transmission substrate and the reception substrate are provided facing each other so that the transmitting resonator and the receiving resonator are symmetric about a point and have matching contours. | 02-20-2014 |
20140049345 | RESONANCE COUPLER - A resonance coupler includes transmission-side resonant wiring provided on a transmission substrate and connected to a transmission ground between a connection point of first transmission wiring to the transmission-side resonant wiring and a connection point of second transmission wiring to the transmission-side resonant wiring, and reception-side resonant wiring provided on a reception substrate and connected to a reception ground between a connection point of first reception wiring to the reception-side resonant wiring and a connection point of second reception wiring to reception-side resonant wiring. When viewed in a direction perpendicular to a main surface of the transmission substrate, the transmission substrate and the reception substrate are provided facing each other so that the transmission-side resonant wiring and the reception-side resonant wiring are symmetric about a point and have matching contours. | 02-20-2014 |
20140203888 | ELECTROMAGNETIC RESONANCE COUPLER - An electromagnetic resonance coupler including: a transmitting resonator provided on a transmission substrate and having an open loop shape having an opening, first wiring provided on the transmission substrate and connected to a first connection point on the transmitting resonator, a receiving resonator provided on the reception substrate, second wiring provided on the reception substrate and connected to a second connection point on the receiving resonator, and third wiring provided on the reception substrate and connected to a third connection point on the receiving resonator. When viewed in a direction perpendicular to a main surface of the transmission substrate, the transmission substrate and the reception substrate are provided facing each other so that the transmitting resonator and the receiving resonator are symmetric about a point and have matching contours. | 07-24-2014 |
20140218136 | RESONANCE COUPLER - A resonance coupler includes transmission-side resonant wiring provided on a transmission substrate and connected to a transmission ground between a connection point of first transmission wiring to the transmission-side resonant wiring and a connection point of second transmission wiring to the transmission-side resonant wiring, and reception-side resonant wiring provided on a reception substrate and connected to a reception ground between a connection point of first reception wiring to the reception-side resonant wiring and a connection point of second reception wiring to reception-side resonant wiring. When viewed in a direction perpendicular to a main surface of the transmission substrate, the transmission substrate and the reception substrate are provided facing each other so that the transmission-side resonant wiring and the reception-side resonant wiring are symmetric about a point and have matching contours. | 08-07-2014 |
20150214597 | RESONANCE COUPLER, TRANSMISSION APPARATUS, SWITCHING SYSTEM, AND DIRECTIONAL COUPLER - A resonance coupler disclosed includes a first resonator to which a transmission signal is input, a second resonator to which the transmission signal is isolatedly transmitted from the first resonator, the second resonator spaced from and opposed to a first side of the first resonator, and electromagnetically coupled with the first resonator, and a third resonator to which the transmission signal is isolatedly transmitted from the first resonator, the third resonator spaced from and opposed to a second side, opposite to the first side, of the first resonator, and electromagnetically coupled with the first resonator. | 07-30-2015 |
20150214852 | SIGNAL TRANSMISSION CIRCUIT, SWITCHING SYSTEM, AND MATRIX CONVERTER - A signal transmission circuit includes an input terminal to which an input signal is input, a high-frequency oscillation circuit that outputs a high-frequency wave, a switching mixing circuit that modulates the high-frequency wave according to the input signal to generate modulated signals including first to third modulated signals, a first output terminal from which the first modulated signal is output, a second output terminal from which the second modulated signal is output, and a third output terminal from which the third modulated signal is output. While the first modulated signal is output from the first output terminal, the second and third modulated signals are not output. While the second modulated signal is output from the second output terminal, the first and third modulated signals are not output. While the third modulated signal is output from the third output terminal, the first and second modulated signals are not output. | 07-30-2015 |
20150214853 | SEMICONDUCTOR DEVICE, SWITCHING SYSTEM, AND MATRIX CONVERTER - A semiconductor device includes a semiconductor switch, a first rectifier circuit, and a second rectifier circuit. The semiconductor switch, the first rectifier circuit, and the second rectifier circuit are integrated on a common board. On the board, a first output terminal of the first rectifier circuit is coupled to a first gate terminal of the semiconductor switch, and a first output reference terminal of the first rectifier circuit is coupled to a first source terminal of the semiconductor switch. On the board, a second output terminal of the second rectifier circuit is coupled to a second gate terminal of the semiconductor switch, and a second output reference terminal of the second rectifier circuit is coupled to a second source terminal of the semiconductor switch. | 07-30-2015 |
20150222263 | GATE DRIVE CIRCUIT - A gate drive circuit in an aspect of the present disclosure includes a modulated signal generation circuit that generates a first modulated signal, a first isolator that isolatedly transmits the first modulated signal, and a first rectifier circuit that generates a first output signal by rectifying the first modulated signal. The first modulated signal includes a first amplitude, a second amplitude larger than the first amplitude, and a third amplitude larger than the second amplitude. The first output signal includes a first output voltage value according to the first amplitude, a second output voltage value according to the second amplitude, and a third output voltage value according to the third amplitude. | 08-06-2015 |
20150222264 | GATE DRIVE CIRCUIT - A gate drive circuit in an aspect of the present disclosure includes: a first electromagnetic resonant coupler that isolatedly transmits a transmission signal from the primary side to the secondary side, and also isolatedly transmits a reflected signal from the secondary side to the primary side; a modulator circuit that modulates a radio-frequency wave with an input signal to generate the transmission signal; a demodulator circuit that demodulates the transmission signal to generate an output signal; a variable capacitance diode into which the transmission signal is input from the first electromagnetic resonant coupler, the variable capacitance diode disposed on the secondary side, the variable capacitance diode allowing a capacitance thereof to vary according to a monitor signal; and a reflected signal rectifier circuit that rectifies the reflected signal input to generate a monitor output signal. | 08-06-2015 |
20150222306 | RADIO-FREQUENCY SIGNAL RECEPTION CIRCUIT AND ISOLATED SIGNAL TRANSMISSION APPARATUS - A radio-frequency signal reception circuit that detects an input signal includes an input reference terminal, a first input terminal into which a first input signal is input, a second input terminal into which a second input signal is input, an output terminal and output reference terminal from which an output signal is output, a first detector circuit that detects the first input signal and outputs a first output signal, which is a positive-voltage pulse signal, to the output terminal, a second detector circuit that detects the second input signal and outputs a second output signal, which is a positive-voltage pulse signal, to the output reference terminal, and a transistor connected to the input reference terminal and output reference terminal. The input signal includes the first input signal and second input signal. The output signal includes the first output signal and second output signal. | 08-06-2015 |
20150234417 | GATE DRIVE CIRCUIT - A gate drive circuit includes: a modulation circuit that generates a first modulated signal and a second modulated signal; an isolator including a first electromagnetic resonance coupler that isolatedly transmits the first modulated signal, and a second electromagnetic resonance coupler that isolatedly transmits the second modulated signal; a first rectifier circuit that generates a first signal by rectifying the first modulated signal; a second rectifier circuit that generates a second signal by rectifying at least a part of the second modulated signal; a third rectifier circuit that generates charging voltage by rectifying a second radio-frequency wave; a capacitor that charges a charge in accordance with the charging voltage; and an output circuit which selects whether or not to supply the charge charged in the capacitor to a gate terminal of the semiconductor switch, in accordance with at least one of the first signal and the second signal. | 08-20-2015 |
20150295574 | SIGNAL RECEPTION CIRCUIT AND ISOLATED SIGNAL TRANSMISSION DEVICE - A signal reception circuit according to an aspect of the present disclosure includes: an input terminal; an input reference terminal; an output terminal; an output reference terminal; a normally-on type transistor that includes a first terminal connected to the output terminal, a second terminal connected to the output reference terminal, and a control terminal; a first detector circuit that detects an input signal applied between the input terminal and the input reference terminal, to apply an output signal between the output terminal and the output reference terminal; and a second detector circuit that detects the input signal, to apply a negative voltage pulse to the control terminal of the transistor with the output reference terminal as a reference. | 10-15-2015 |
20150295599 | ELECTROMAGNETIC RESONANCE COUPLER AND TRANSMISSION APPARATUS - An electromagnetic resonance coupler according to one aspect of the present disclosure includes a first layer, a second layer which faces a first principal surface of the first layer, a third layer which faces a second principal surface of the first layer, a first resonator which is located between the first layer and the second layer, and a second resonator which is located between the first layer and the third layer. A dielectric constant of the first layer is lower than either one of a dielectric constant of the second layer and a dielectric constant of the third layer. A dielectric dissipation factor of the first layer is higher than either one of a dielectric dissipation factor of the second layer and a dielectric dissipation factor of the third layer. | 10-15-2015 |
20160056150 | POWER SEMICONDUCTOR ELEMENT - A power semiconductor element includes: a main transistor including a first gate electrode, a first drain electrode, and a first source electrode; a sensor transistor including a second gate electrode, a second drain electrode, and a second source electrode; and a gate switch transistor including a third gate electrode, and a third drain electrode, a third source electrode. The first gate electrode, the second gate electrode, and the third drain electrode are connected, the first drain electrode and the second drain electrode are connected, the first source electrode and the second source electrode are connected via a sensor resistor, the first source electrode and the third source electrode are connected, the second source electrode and the third gate electrode are connected via a switch resistor, and the main transistor, the sensor transistor, and the gate switch transistor are formed with a nitride semiconductor. | 02-25-2016 |
20160065168 | RESONANCE COUPLER AND TRANSMISSION DEVICE - A resonance coupler according to one aspect of the present disclosure includes first resonance wiring and second resonance wiring. The first resonance wiring includes first open loop wiring, first input/output wiring extending outwardly from a first connection portion of the first open loop wiring, and first stub wiring extending inwardly from a second connection portion of the first open loop wiring. The second resonance wiring includes second open loop wiring, and second input/output wiring extending outwardly from a third connection portion of the second open loop wiring. The first stub wiring includes a first connection end connected to the second connection portion and a first open end on an opposite side. A wiring length from the first connection portion to the first open end is one-quarter of a wavelength of an nth-order harmonic of a radio-frequency signal, where n is an integer not less than 2. | 03-03-2016 |
20160072167 | ELECTROMAGNETIC RESONANT COUPLER AND HIGH-FREQUENCY TRANSMISSION DEVICE - A high-frequency transmission device includes first and second resonators as ring-shaped wires each having an opening part at a part thereof, first and second input/output terminals each electrically connected to both resonators, a first ground shield formed on a plane different from planes on which both resonators are arranged, a second ground shield formed on a plane different from the planes on which both resonators and the first ground shield are arranged, and first and second ground wires each formed to surround peripheries of both resonators. The ground shields and the ground wires are respectively connected to each other. A dielectric wire is present between both ground wires, and the ground wires are not electrically connected to each other. | 03-10-2016 |
Patent application number | Description | Published |
20110103842 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a developing tank for containing a powder developer, an agitating member disposed in the developing tank to agitate the powder developer; and a cooling tank attached to the developing tank. The cooling tank contains an endothermic material to absorb heat from the powder developer. | 05-05-2011 |
20110158676 | IMAGE FORMING APPARATUS - An image forming apparatus includes a fusing device; a developing device; a partition wall disposed between the fusing device and the developing device, wherein the partition wall includes a Peltier element for transferring heat from the developing device to the fusing device and a cooling heat storage member disposed nearer to the developing device than the Peltier element. | 06-30-2011 |
20110170910 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device to be installed in an electrophotographic image forming apparatus including a photoconductor drum that is to have an electrostatic latent image formed on a surface thereof, the developing device comprising: a developer vessel that accommodates a developer containing a toner and a carrier; a toner supply port; a developing roller; a developer conveying passage that is disposed between a position in the developer vessel where the toner is supplied and the developing roller; a developer conveying helical member that is rotatably disposed in the developer conveying passage to convey the developer in the developer conveying passage to the developing roller while agitating the developer; and an agitating blade member that is rotatably disposed above, near and along the developer conveying helical member in the developer conveying passage to agitate the developer on the developer conveying helical member. | 07-14-2011 |
20110176836 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device comprising: a developer vessel that accommodates a developer containing a toner and a carrier; a toner supply port; a developing roller; a developer conveying passage; a developer conveying helical member; and a developer scooping member, wherein the developer conveying passage includes a first developer conveying passage and the a second developer conveying passage being defined by a partitioning plate, and a first communicating path and a second communicating path that establish a communication between the first and second developer conveying passage, the developer conveying helical member includes a first developer conveying helical member disposed in the first developer conveying passage, and a second developer conveying helical member disposed in the second developer conveying passage, the developer scooping member includes a first developer scooping member disposed near the first communicating path to send the developer in the first developer conveying passage into the second developer conveying passage, and a second developer scooping member disposed near the second communicating path to send the developer in the second developer conveying passage into the first developer conveying passage. | 07-21-2011 |
20110182624 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS USING THE DEVELOPING DEVICE - A developing device includes a developer container for containing a developer including a toner and a magnetic carrier; a developer conveying path provided in the developer container; a developer conveying member, provided in the developer conveying path, for agitating and conveying the developer; and a developing roller for holding the agitated developer so that the toner included in the developer is supplied to a photoconductor drum, wherein the developer conveying member includes a rotating shaft, and an undulated helical blade provided along an outer circumference of the rotating shaft. | 07-28-2011 |
20110188894 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device and an image forming apparatus which suppress unevenness of image density are provided. A developing device includes a developer tank storing a developer, a first conveying member and a second conveying member conveying the developer, and a developing roller bearing the developer thereon. In the developing device, the first conveying member is constituted by a first rotating shaft and a plurality of first conveying blades provided along a first imaginary spiral surrounding the outer periphery of the first rotating shaft and advancing in the axial direction of the first rotating shaft at a predetermined lead angle θ | 08-04-2011 |
20110229212 | TONER DISCHARGE MECHANISM, TONER CARTRIDGE AND IMAGE FORMING APPARATUS USING THE TONER CARTRIDGE - A toner discharge mechanism which is attached to a toner cartridge includes an auger screw for conveying and discharging a toner stored in the toner cartridge, the auger screw having an end portion downstream thereof, the end portion forming a taper portion having a predetermined length and an outer diameter diminishing toward a tip thereof; a cover member for covering the taper portion, the cover member having a conical inner wall configured to correspond to a taper shape of the taper portion; and a toner discharge outlet formed on the cover member. | 09-22-2011 |
20110229213 | TONER DISCHARGING DEVICE, TONER CARTRIDGE, AND IMAGE FORMING APPARATUS - A toner discharging device, a toner cartridge, and an image forming apparatus in which the occurrence of the locking phenomenon is prevented are provided. A toner discharging device includes a discharge container including a wall portion which defines an inner space and has a reception port and a discharge port, and a discharge member which includes an inner spiral blade moving toner in a direction H | 09-22-2011 |
20110255907 | TONER DISCHARGING DEVICE, TONER CARTRIDGE AND IMAGE FORMING APPARATUS - A toner discharging device, a toner cartridge and an image forming apparatus in which occurrence of a locking phenomenon can be suppressed are provided. A toner discharging device includes a discharge container having a wall portion which defines an internal space thereof and has a reception port and a discharge port, and a discharge member including a rotation shaft and a discharge blade as a decay spiral blade. At least a part of the wall portion of the discharge container surrounds the discharge blade along an axial line direction of the rotation shaft, and the discharge port is formed on the part of the wall portion. | 10-20-2011 |
20110286769 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developer tank of a developing device is partitioned into a first conveyance path, a second conveyance path, a first communicating path and a second communicating path with a partition. A first developer conveying member that conveys a developer in a first developer conveying direction is provided in the first conveyance path. A second developer conveying member that conveys the developer in a second developer conveying direction is provided in the second conveyance path. In the first developer conveying member, a double spiral blade is provided on a downstream side in the first developer conveying direction from a first conveying blade of the first developer conveying member, the double spiral blade including an inner spiral blade that conveys the developer in a first direction and an outer spiral blade that conveys the developer in a second direction. | 11-24-2011 |
20110286770 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device to be installed in an electrophotographic image forming apparatus including a photoconductor drum that is to have an electrostatic latent image formed on a surface thereof, the developing device comprising: a developer vessell; a developing roller that is disposed in the developer vessel; first and second developer conveying passages; and first and second developer conveying helical members circulatory conveys the developer in the first and second developer conveying passages, wherein
| 11-24-2011 |
20110305484 | DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A development device comprising a developer conveying member and a developer raking member that are rotatably disposed in the developer conveyance path to conveying and agitating the developer in the developer conveyance paths, wherein the developer conveyance path includes first and second developer conveyance paths and first and second communication paths that communicating the first and second developer conveyance paths on both sides, the developer conveying member includes first and second developer conveying members that are disposed in the first and second developer conveyance paths, the developer raking member is disposed in at least one of the first and second communication paths. | 12-15-2011 |
20110305486 | TONER CONVEYING APPARATUS, TONER CARTRIDGE AND CLEANING UNIT HAVING THE TONER CONVEYING APPARATUS - A toner conveying apparatus comprising:
| 12-15-2011 |
20110318062 | Developer Conveying Device and Development Device, Toner Cartridge, and Cleaning Unit that are Provided with Developer Conveying Device - A developer conveying device comprising: a developer conveying cylinder; and a screw-shaped shaft, wherein the screw-shaped shaft includes a rotating shaft that is journaled in an upstream wall portion and a downstream wall portion, which are included in the developer conveying cylinder, and a spiral blade that is mounted on an outer circumferential surface of the rotating shaft; the rotating shaft includes a conical portion that thickens gradually toward the downstream side; and the spiral blade includes an agitating blade portion whose lead angle increases gradually toward the downstream side. | 12-29-2011 |
20120014719 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS HAVING THE DEVELOPING DEVICE - A developing device comprising: a developer tank housing a developer including a toner and a carrier; a toner replenishment port; a developing roller; a first developer conveying path and a second developer conveying path; a conducting plate for peeling a recovery developer on a surface of the developing roller after the toner is supplied to a photosensitive drum from the surface of the developing roller so as to guide the recovery developer to the first developer conveying path; and first and second developer conveying members arranged on the first and second developer conveying paths, wherein the first developer conveying member has a cylindrical hollow rotating shaft with opened both ends that is rotatably provided to the first developer conveying path, and divides the first developer conveying path into an external first developer conveying path and an internal first developer conveying path, an external spiral blade fixed to an outer periphery of the hollow rotating shaft, and an internal spiral blade fixed to an inner periphery of the hollow rotating shaft, a direction where the developer is conveyed by the external spiral blade is the same as a direction where the developer is conveyed by the second developer conveying member and is opposite to a direction where the developer is conveyed by the internal spiral blade. | 01-19-2012 |
20120045252 | DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS PROVIDED THEREWITH - A development device mounted on an electrophotographic image forming apparatus including a photoconductive drum in which an electrostatic latent image is formed on a surface thereof, the development device comprising: a developer tank; a development roller that is provided in the developer tank; first and second developer conveying paths; and first and second developer conveying spiral members that conveying the developer in the circulating manner in the first and second developer conveying paths, wherein at least one of the first and second developer conveying spiral members further includes an end blade that is provided at one end of the rotary shaft, the end blade includes: a spiral blade portion that is fixed to the circumferential surface of the rotary shaft; and a circumferential agitating plate portion that is fixed to a circumferential portion of the spiral blade portion. | 02-23-2012 |
20120063813 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device that is capable of securing an amount of developer that can be stored in a developer tank while suppressing the bending of a developer conveying section, as well as an image forming apparatus are provided. In a developer tank of a developing device, there is provided a first developer conveying section that includes a first rotation shaft member having a columnar shape in which grooves extending in an axial line direction are formed, and a first spiral blade that is spirally wound around the first rotation shaft member and conveys the developer by rotation around the axial line of the first rotation shaft member. | 03-15-2012 |
20120163872 | DEVELOPING DEVICE, IMAGE FORMING APPARATUS, DEVELOPER AGITATING AND CONVEYING METHOD - A developing device includes a developer tank and a developing roller. An internal space of the developer tank is divided into an upper conveying path, a lower conveying path, a communication path, a main pumping conveying path section, and a developer supply path, by a partition wall. A developer pumping conveying section conveys a developer inside the main pumping conveying path section in a conveyance direction Z, and includes an inner spiral blade, a rotational tube, a first outer spiral blade, a second outer spiral blade, a pumping rotation shaft member, and a pumping gear. An attracting magnet is located in a position horizontally spaced from the rotational tube. | 06-28-2012 |
20120163873 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - In a developing device including a developer tank and a developing roller, an internal space of the developer tank is divided by a partition wall into a first conveying path, a second conveying path, a communication path and a pumping path. In the pumping path, there is disposed a developer pumping section including a pumping spiral blade, a pumping rotation shaft member, and a pumping gear. A developer in the pumping path is pumped up by the developer pumping section, so that a part of the developer is moved to a side of the first conveying path while another part of the developer is moved to a side of the second conveying path. | 06-28-2012 |
20120189353 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a developer tank and a developing roller. An internal space of the developer tank is divided into a first conveying path, a second conveying path, a first communication path, and a second communication path by a partition wall. In the first conveying path, there is disposed a first developer conveying section that conveys the developer within the developer tank in a conveying direction X. In the second conveying path, there is disposed a second developer conveying section that conveys the developer within the developer tank in a conveying direction Y. The first developer conveying section includes an inner spiral blade, an outer spiral blade, an upstream spiral blade, a rotation tube, a delivery portion, support members, and a first gear. The rotation tube has an admission port portion and a discharge port portion. | 07-26-2012 |
20120219327 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - In a developing device including a developer tank and a developing roller, an internal space of the developer tank is divided into a first conveying path, a second conveying path, a first communication path and a second communication path, by a partition wall. A first developer conveying section which conveys a developer in the developer tank in a conveying direction X is disposed in the first conveying path. A second developer conveying section which conveys the developer in the developer tank in a conveying direction Y is disposed in the second conveying path. The first developer conveying section includes a plurality of inner spiral blade pieces, a rotation tube, an upstream spiral blade, a downstream spiral blade, support members, and a first gear. | 08-30-2012 |
Patent application number | Description | Published |
20090104380 | Production method of liquid crystal display unit and spacer particle dispersion liquid - It is an object of the invention to provide a method of producing a liquid crystal display device which comprises steps of depositing droplets of a spacer particle dispersion at prescribed positions on a substrate by ejecting the spacer particle dispersion with an ink-jet apparatus, then drying the droplets, and thereby arranging the spacer particles on the substrate, which may arrange the spacer particles precisely at prescribed positions, and a spacer particle dispersion preferably usable for the method of producing a liquid crystal display device. | 04-23-2009 |
20130197154 | MODIFIED POLYVINYL ALCOHOL, MODIFIED POLYVINYL ACETAL AND CERAMIC SLURRY COMPOSITION - The present invention provides a modified polyvinyl alcohol enabling to produce polyvinyl acetal that is excellent in solubility in a solvent even with a low degree of polymerization while hardly causing reaction inhibition, coloring, and particle coarsening, and a method for producing the modified polyvinyl alcohol. The present invention also provides a modified polyvinyl acetal that is excellent in solubility in a solvent even with a low degree of polymerization, and has high elasticity, mechanical strength, and a film forming property. The present invention further provides a method for producing the modified polyvinyl acetal, a polyvinyl acetal film produced from the modified polyvinyl acetal, a method for producing the polyvinyl acetal film, a ceramic slurry composition, a method for producing the ceramic slurry composition, and a ceramic green sheet. The present invention is a modified polyvinyl alcohol including at least one functional group selected from the group consisting of hydroxyl, aldehyde, carboxyl, and lactone ring groups at a molecular end, and having a degree of saponification of 99.95 mol % or higher and a 1,2-glycol bond content of 1.4 mol % or lower. | 08-01-2013 |
20150240018 | POLYVINYL ACETAL MICROPARTICLES FOR WATER-BASED DISPERSION - The present invention provides polyvinyl acetal fine particles for an aqueous dispersion which exhibit excellent dispersion stability in a water-containing dispersion medium, and allow for formation of a film having sufficient mechanical strength and flexibility without voids and non-uniform structures such as irregularities, and an aqueous dispersion of the polyvinyl acetal fine particles for an aqueous dispersion. | 08-27-2015 |
20150240067 | POLYVINYL ACETAL-BASED RESIN COMPOSITION - The present invention provides a polyvinyl acetal resin composition exerting excellent mechanical strength over a wide temperature range from low temperatures to high temperatures. The present invention provides a polyvinyl acetal resin composition containing a polyvinyl acetal resin and a resin having a crosslinked structure, the polyvinyl acetal resin composition having a structure in which the resin having a crosslinked structure is dispersed as a dispersed phase in the polyvinyl acetal resin as a continuous phase, the polyvinyl acetal resin composition having a maximum value of a loss tangent derived from the polyvinyl acetal resin at 40° C. or higher and a maximum value of a loss tangent derived from the resin having a crosslinked structure at 10° C. or lower in measurement of a dynamic viscoelasticity spectrum at a frequency of 10 Hz. | 08-27-2015 |
20160053039 | BINDER FOR MANUFACTURING INORGANIC SINTERED BODY - The present invention provides a binder for manufacturing an inorganic sintered body that has excellent adhesiveness upon heat pressing and thermal decomposability and, especially when used as a binder for a ceramic green sheet, provides a ceramic green sheet having sufficient mechanical strength and flexibility. The present invention also provides a paste for manufacturing an inorganic sintered body, a ceramic green sheet, and a ceramic laminate individually manufactured using the binder for manufacturing an inorganic sintered body. The present invention provides a binder for manufacturing an inorganic sintered body containing a graft copolymer having a unit including polyvinyl butyral and a unit including a poly(meth)acrylic compound, the polyvinyl butyral having a polymerization degree of 800 to 5000, a hydroxy group content of 20 to 40 mol %, and a butyralization degree of 60 to 80 mol %, the unit including a poly(meth)acrylic compound having a glass transition temperature of 0 to 110° C. | 02-25-2016 |
Patent application number | Description | Published |
20090121377 | Method of Manufacturing Polytetrafluoroethylene Particle Aggregate and Method of Manufacturing Polytetrafluoroethylene Product - The present invention provides a method of manufacturing a polytetrafluoroethylene (PTFE) product offering better productivity and a higher degree of flexibility in form of the product to be obtained than the conventional methods of manufacturing a PTFE product, and a method of manufacturing PTFE particle aggregate obtained as an intermediate while manufacturing a PTFE product. According to the manufacturing methods, aggregate of PTFE particles including water and a surfactant is obtained by applying force to a dispersion of PTFE particles containing PTFE particles, a surfactant and water as a dispersion medium, where the force makes the PTFE particles approach or contact with each other. Such a manufacturing method may be carried out, for example, with a chamber ( | 05-14-2009 |
20090166929 | Process for Production of Polytetrafluoroethylene Sheet, and Process for Production of Polytetrafluoroethylene Seal Tape - Disclosed is a process for production of a polytetrafluoroethylene (PTFE) sheet, which is superior in productivity compared to conventional processes and can reduce the cost of production. Also disclosed is a process for production of a PTFE seal tape. The processes comprise the following steps (i) to (iii): (i) applying a force to a PTFE particle suspension comprising PTFE particles, a surfactant and water (a dispersion medium) so that the particles can come close to each other or contact with each other, thereby forming a PTFE-containing solid material having the water and the surfactant included therein; (ii) shaping the solid material into a sheet-like form; and (iii) reducing the water content in the sheet-like solid material. | 07-02-2009 |
20100032368 | Method for producing resin porous membrane with adhesive layer, resin porous membrane with adhesive layer, and filter member - The present invention provides a resin porous membrane with an adhesive layer that exhibits excellent bonding precision and can be bonded to an adherend while maintaining the gas permeability of the porous membrane even when the porous membrane is small, and a method for producing the resin porous membrane with the adhesive layer. The present invention also provides the filter member including the resin porous membrane with the adhesive layer. | 02-11-2010 |
20100040927 | Silane crosslinked structure-introduced fuel-cell polymer electrolyte membrane and fuel-cell electrode assembly having the same - An object is to provide an electrolyte membrane that maintains excellent cell characteristics for a long time under high temperature and low water retention, as this is the most important point in fuel cells. | 02-18-2010 |
20100297529 | Process for producing hybrid ion-exchange membranes comprising functional inorganics and graft polymer and electrolyte membranes for use in fuel cells comprising the hybrid ion-exchange membranes - Polymer ion-exchange membranes having outstanding electrical conductivity, water retention and oxidation resistance are produced by the steps of uniformly mixing an organic high-molecular weight resin with functional inorganics having the abilities to promote graft polymerization of polymerizable monomers, adsorb water and conduct protons, irradiating the resulting functional inorganics/polymer membrane to initiate graft polymerization or graft copolymerization of polymerizable monomers having functional groups, and then introducing sulfonic acid groups into the graft chains. | 11-25-2010 |
20120101215 | METHOD OF MANUFACTURING POLYTETRAFLUOROETHYLENE PARTICLE AGGREGATE AND METHOD OF MANUFACTURING POLYTETRAFLUOROETHYLENE PRODUCT - The present invention provides a method of manufacturing a polytetrafluoroethylene (PTFE) product offering better productivity and a higher degree of flexibility in form of the product to be obtained than the conventional methods of manufacturing a PTFE product, and a method of manufacturing PTFE particle aggregate obtained as an intermediate while manufacturing a PTFE product. According to the manufacturing methods, aggregate of PTFE particles including water and a surfactant is obtained by applying force to a dispersion of PTFE particles containing PTFE particles, a surfactant and water as a dispersion medium, where the force makes the PTFE particles approach or contact with each other. Such a manufacturing method may be carried out, for example, with a chamber ( | 04-26-2012 |
20120193285 | METHOD FOR PRODUCING RESIN POROUS MEMBRANE WITH ADHESIVE LAYER, RESIN POROUS MEMBRANE WITH ADHESIVE LAYER, AND FILTER MEMBER - The present invention provides a resin porous membrane with an adhesive layer that exhibits excellent bonding precision and can be bonded to an adherend while maintaining the gas permeability of the porous membrane even when the porous membrane is small, and a method for producing the resin porous membrane with the adhesive layer. The present invention also provides the filter member including the resin porous membrane with the adhesive layer. | 08-02-2012 |
20120247647 | METHOD OF SUCTION OF OBJECT TO BE WORKED UPON SUCTION UNIT AND METHOD OF MANUFACTURE OF CERAMIC CAPACITOR - In the method for allowing a work object ( | 10-04-2012 |
20120306115 | PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE SHEET, AND PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE SEAL TAPE - Disclosed is a process for production of a polytetrafluoroethylene (PTFE) sheet, which is superior in productivity compared to conventional processes and can reduce the cost of production. Also disclosed is a process for production of a PTFE seal tape. The processes comprise the following steps (i) to (iii): (i) applying a force to a PTFE particle suspension comprising PTFE particles, a surfactant and water (a dispersion medium) so that the particles can come close to each other or contact with each other, thereby forming a PTFE-containing solid material having the water and the surfactant included therein; (ii) shaping the solid material into a sheet-like form; and (iii) reducing the water content in the sheet-like solid material. | 12-06-2012 |
20130008688 | COVERING MATERIAL, COVERED RECTANGULAR ELECTRIC WIRE AND ELECTRICAL DEVICE - Provided is a covering material, in which the covering material is a covering material for covering a rectangular electric wire in such a way that the covering material is spirally wound around the rectangular electric wire in a manner partially overlapping with itself; and the covering material includes a backing having a tensile modulus of elasticity at 25° C. of 5.0 GPa or more. | 01-10-2013 |
20130012396 | COVERING MATERIAL, SUPERCONDUCTING ELECTRIC WIRE AND ELECTRICAL DEVICE - Provided is a covering material, in which the covering material is a covering material for covering a superconducting wire, and a tensile modulus of elasticity at 25° C. is 6.0 GPa or less. Further provided is also a superconducting electric wire, which includes the covering material and a superconducting wire covered with the covering material. Still further provided is an electrical device produced by using the superconducting electric wire. | 01-10-2013 |
20130074691 | WATER-PROOF AIR-PERMEABLE FILTER AND USE OF THE SAME - A water-proof air-permeable filter ( | 03-28-2013 |
20130087042 | WATER-PROOF AIR-PERMEABLE FILTER AND USE OF THE SAME - A water-proof air-permeable filter ( | 04-11-2013 |
20130286460 | POROUS ELECTRODE SHEET, METHOD FOR PRODUCING THE SAME, AND DISPLAY DEVICE - A porous electrode sheet ( | 10-31-2013 |
20150065597 | METHOD FOR PRODUCING POROUS POLYMER FILM AND POROUS POLYMER FILM - Disclosed is a method for producing a porous polymer film. This method includes the steps of: (I) irradiating a polymer film with an ion beam of accelerated ions so as to form a polymer film that has collided with the ions in the beam; and (II) chemically etching the polymer film formed in the step (I) so as to form openings and/or through holes corresponding to tracks of the colliding ions left in the polymer film. In the step (I), the polymer film is placed in an atmosphere with a pressure of 100 Pa or more, and the polymer film placed in the atmosphere is irradiated with the ion beam that has passed through a beam line maintained at a lower pressure than the pressure of the atmosphere and through a pressure barrier sheet disposed at an end of the beam line to separate the beam line from the atmosphere. | 03-05-2015 |
20150174517 | WATER-PROOF AIR-PERMEABLE FILTER AND USE OF THE SAME - A water-proof air-permeable filter ( | 06-25-2015 |
20150246319 | WATER-PROOF AIR-PERMEABLE FILTER AND USE OF THE SAME - A water-proof air-permeable filter ( | 09-03-2015 |