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Akira Yoshida
Akira Yoshida, Hadano-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110062556 | COMPOUND SEMICONDUCTOR SUBSTRATE - A compound semiconductor substrate which inhibits the generation of a crack or a warp and is preferable for a normally-off type high breakdown voltage device, arranged that a multilayer buffer layer | 03-17-2011 |
Akira Yoshida, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20090324267 | IMAGE FORMING APPARATUS AND IMAGE-DENSITY CONTROL METHOD - An image forming apparatus forms a plurality of tone patterns of different colors, each of which containing a plurality of toner patches having different toner densities. Some of the toner patches in each of the tone patterns are formed with a predetermined fixed developing bias and the rest of the toner patches in each of the tone patterns are formed with developing biases set based on previous developing biases that have been obtained through a previous control process. The largest toner density of the toner patches in each of the tone patterns is determined based on a magnitude relation of previous index values obtained through the previous control process. | 12-31-2009 |
| 20100086320 | IMAGE FORMING APPARATUS - A first developer container having a toner supplying opening is provided in a developing unit. A toner concentration sensor is arranged downstream of the toner supplying opening to detect toner concentration in developer. A supply controlling unit is provided to determine an excess or a shortage in the amount of supplied toner based on image information correspondingly to a detection result by the toner concentration sensor, and to correct the driving amount of a toner supplying unit that has been determined based on the image information correspondingly to the recognized excess or shortage in the amount of supplied toner. | 04-08-2010 |
| 20100086322 | IMAGE FORMING APPARATUS - A supply control unit is configured to, in a successive image-forming operation, perform a process of successively generating a driving control pattern for a toner supply device based on image information of each page, and synthesizing an unused portion of the driving control pattern which is obtained by eliminating a portion of the driving control pattern already reflected on a driving control of the toner supply device from the driving control pattern generated based on image information of a previous page with a driving control pattern generated based on a subsequent page. | 04-08-2010 |
| 20100244100 | Compound semiconductor substrate - The present invention provides a compound semiconductor substrate, including: a single-crystal silicon substrate having a crystal face with (111) orientation; a first buffer layer which is formed on the single-crystal silicon substrate and is constituted of an Al | 09-30-2010 |
| 20110052239 | OPTICAL SENSOR AND IMAGE FORMING APPARATUS - An optical sensor includes: a light-emitting unit; a light-receiving unit that receives light radiated from the light-emitting unit and reflected from a detection target and that outputs an output value in response to the light received; and a correcting unit that corrects the output value of the light-receiving unit when receiving the light reflected from the detection target based on the output value of the light-receiving unit obtained by irradiating a detection area of the optical sensor with light without any light reflective objects being present in the detection area. | 03-03-2011 |
Akira Yoshida, Kanuma-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100316864 | CUSHIONING PAD FOR HOT PRESS AND METHOD FOR MANUFACTURING THE SAME - A hot press cushioning pad | 12-16-2010 |
Akira Yoshida, Aichi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090211717 | Part for Producing Castings and Process of Making the Same - A process of producing a part for casting including the step of preparing a raw material slurry containing inorganic fibers, organic fibers, a thermosetting resin, a papermaking binder, and a sulfonate-based and/or a cellulose-based dispersant. The raw material slurry preferably further contains an inorganic powder and/or a water repellant. | 08-27-2009 |
| 20100307714 | STRUCTURE FOR PRODUCING CAST ARTICLES - The present invention provides a structure for producing cast articles containing one or more inorganic particles selected from amorphous and artificial graphites, an inorganic fiber and a thermosetting resin and having a gas permeability of 1 to 500. | 12-09-2010 |
Akira Yoshida, Tochigi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080227354 | Hot-Press Cushioning Material its Manufacturing Method and Manufacturing Method of Laminated Board - A cushioning material for a heat press having a non-woven fiber composed of a fiber web ( | 09-18-2008 |
| 20100251908 | HOT PRESS CUSHIONING MEMBER AND METHOD FOR MANUFACTURING LAMINATED PLATE - A hot-press cushioning member | 10-07-2010 |
Akira Yoshida, Sagamihara-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100226664 | IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING IMAGE DENSITY THEREIN - An image forming apparatus includes a developer unit to store two-component developer which includes toner and carrier and develop an electrostatic latent image formed on the image carrier, a toner concentration detector to detect toner concentration in the developer unit, a toner supply unit to supply toner to the developer unit, and a controller to control toner supply amount by controlling the toner supply unit by comparing an output value of the toner concentration detector with a reference value stored in a memory and correcting difference between output values of the toner concentration detector at two or more process linear velocities in accordance with the toner concentration in the developer unit. A compensation amount for correcting difference between output values of the toner concentration detector that differ depending on the process linear velocity is adjustable in accordance with the toner concentration in the development unit. | 09-09-2010 |
Akira Yoshida, Wako-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100186530 | SHIFT CONTROL DEVICE FOR AUTOMATIC TRANSMISSION - Lubricating oil passages extending toward a power transmission mechanism from a regulator valve to lubricate the power transmission mechanism include a first lubricating oil passage for supplying lubricating oil to a low clutch used to set up a low gear speed and a second lubricating oil passage for supplying lubricating oil with line pressure to the low clutch. A check valve for preventing the lubricating oil from flowing out from frictional engagement elements other than the low clutch when the second lubricating oil passage is selected, is provided on the first lubricating oil passage. An outflow preventing section for preventing the lubricating oil, supplied to the low clutch via the first lubricating oil passage, from flowing out from any open port of hydraulic control valves when the second lubricating oil passage is not selected, is provided on the second lubricating oil passage. | 07-29-2010 |
Akira Yoshida, Zama-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100031278 | DISK DRIVE - A disk drive comprises a cartridge holding mechanism which has a small size and reduces a damper load. The disk drive comprises: a spindle motor | 02-04-2010 |
Akira Yoshida, Yokohama-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090324282 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An object of the present invention is to provide an electrophotographic photosensitive member having high durability and hardly causing sensitivity decrease even if short wavelength light, particularly light having a wavelength of 380 to 450 nm is used as exposure light, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member. The present invention includes an electrophotographic photosensitive member comprising a support and a photosensitive layer which is provided on the support and contains a charge generation material and a charge transport material, characterized in that the surface layer of the electrophotographic photosensitive member contains an aliphatic dicarboxylic acid polyester resin with a weight average molecular weight of 80,000 or more having a specific repeating structural unit, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member. | 12-31-2009 |
| 20110129768 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING THE SAME, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - According to aspects of the present invention, an electrophotographic photosensitive member includes a surface layer comprising a cured resin obtained by polymerizing a compound having at least one polymerizable functional group. Aspects of the present invention provide an electrophotographic photosensitive member whose surface layer comprises a compound (urea derivative) having a certain structure, a method for producing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus including the electrophotographic photosensitive member. | 06-02-2011 |
Akira Yoshida, Kawasaki-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080205923 | IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD - An image forming apparatus includes an image carrier configured to carry an electrostatic latent image, a developing device configured to develop the electrostatic latent image with a two-component developer including toner and magnetic carrier, a toner supplier configured to supply the toner to the developing device, a toner concentration detector configured to detect toner concentration in the two-component developer inside the developing device, and a controller. The controller is configured to detect first information to determine toner replacement amount in the developing device during a predetermined time period and second information to determine a charge characteristic of the toner in the developing device, change a toner concentration control reference value based on the first information and the second information, and control the toner concentration based on an output from the toner concentration detector and the toner concentration control reference value. | 08-28-2008 |
| 20090110413 | IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD - An image forming apparatus and an image density control method for controlling image density in the image forming apparatus, involving adjusting a toner concentration control reference value in accordance with an amount of the toner replaced in a developing device so as to adjust the image density to maintain a consistent developability and changing image forming intervals in accordance with an amount of the toner replaced in the developing device during continuous printing operation. | 04-30-2009 |
| 20090190960 | PROCESS CARTRIDGE INCLUDING DEVELOPING UNIT AND INCORPORATED IN IMAGE FORMING APPARATUS - A process cartridge for use in an image forming apparatus includes an image bearing member and a developing unit. The developing unit includes a developer bearing member to bear developer including toner and carrier, a casing forming a developer container containing the developer, a screw having a shaft with a spiral screw blade, a toner density sensor to detect a density of the toner on a detection surface, and a detection surface agitating member fixedly mounted on the shaft of the screw at a position facing a detection surface to scrape away the developer accumulated on the detection surface as the screw rotates. The detection surface agitating member includes an elastic sheet elastically deformable to scrape away the developer accumulated on the detection surface and disposed at a substantially same angle to an axial direction of the shaft of the screw as the spiral screw blade. | 07-30-2009 |
| 20090202263 | IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD - An image forming apparatus includes a control device that calculates a developing ability of the developing device based on a detection value detected by an optical detection device from the plural toner patches. The control device adjusts an image formation condition based on the calculated developing ability. A factor detection device is provided to detect a contributing factor that causes the developing ability to largely change after the last adjustment of the image formation condition. The control device controls image formation such that when the factor detection device does not detect the contribution factor and a developing ability calculated this time is different from that calculated last time (as to a part of the plural toner patches), the plural toner patches are formed based on a prescribed fixed image formation condition so that an attraction amount of toner attracting to the plural toner patches enter a prescribed range detectable for the optical detection device. The remaining toner patches are formed (based on an image formation condition determined) in accordance with the image formation condition previously adjusted. When the detection device detects the contribution factor, the entire toner patches are formed based on the prescribed fixed condition. | 08-13-2009 |
| 20090279907 | REUSE METHOD AND IMAGE FORMING APPARATUS - In a reuse method for reusing a reusable device and a sensor of a first image forming apparatus having a first process linear velocity in a second image forming apparatus having at least one second process linear velocity different from the first process linear velocity, the reusable device and the sensor are installed in the first image forming apparatus, and when the first image forming apparatus switches from the first process linear velocity to the second process linear velocity at an initial state before the reusable device is used, output of the sensor at the second process linear velocity is measured. When information on the output of the sensor at the second process linear velocity is stored, the reusable device and the sensor are removed from the first image forming apparatus and installed in the second image forming apparatus. | 11-12-2009 |
Akira Yoshida, Ayase-City JP
| Patent application number | Description | Published |
|---|---|---|
| 20090203300 | Carrier for holding an object to be polished - The present invention provides a diamond-like carbon coated carrier for holding an object to be polished used for double-sided polishing, and a manufacturing method therefor. The carrier for holding a workpiece according to the present invention has a substrate whose entire surface is coated with diamond-like carbon. The method of the present invention includes coating the entire carrier surface with diamond-like carbon using a surface coating apparatus using plasma CVD. | 08-13-2009 |
Akira Yoshida, Hadano City JP
| Patent application number | Description | Published |
|---|---|---|
| 20080224268 | NITRIDE SEMICONDUCTOR SINGLE CRYSTAL SUBSTRATE - To provide a nitride semiconductor single crystal substrate comprising a Si substrate and a nitride semiconductor film which has semi-polar (10-1m) plane (m: natural number) and a thickness of 1 μm or more, the nitride semiconductor single crystal substrate being suitably used for a light-emitting device, the nitride semiconductor single crystal substrate being suitably used for a light-emitting device, this invention provides a nitride semiconductor single crystal substrate comprising a Si substrate having an off-cut angle of 1 to 35° in the <110> direction from the <100> direction, a buffer layer | 09-18-2008 |
| 20090065812 | COMPOUND SEMICONDUCTOR SUBSTRATE - Provides is a compound semiconductor substrate about which the thickness of its nitride semiconductor single crystal layer can be made large while the generation of cracks, crystal defects or the like is restrained in the nitride semiconductor single crystal layer. The substrate has a first intermediate layer | 03-12-2009 |
Akira Yoshida, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20080290811 | POWER SOURCE UNIT FOR DISCHARGE LAMP AND METHOD OF CONTROLLING THE SAME - A switching element is switched at a high frequency in accordance with control by a pulse generating circuit by using a D.C. power source portion as a power source, which results in that a discharge lamp is driven with a D.C. current through a smoothing circuit. A current detecting resistor detects the lamp current caused to flow through the discharge lamp, a current controlling circuit amplifies a deviation between the detected lamp current value and a preset current reference value, and the resulting value is applied to a feedback terminal (F/B) of the pulse generating circuit through a gain setting circuit. A gain changing circuit changes a loop gain of a feedback control system including the switching element, the smoothing circuit, the discharge lamp, and the pulse generating circuit at an output point of the gain setting circuit in correspondence to a fluctuation in a power source voltage (V | 11-27-2008 |
Akira Yoshida, Ota-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110138159 | MEMORY CONTROL APPARATUS - A memory control apparatus includes: a plurality of setting output units each configured to output setting information for setting operation of each of a plurality of memory cells; and a plurality of selection units each configured to select operation or stop of the operation of each of the plurality of memory cells in accordance with the setting information. | 06-09-2011 |
Akira Yoshida, Kanagawa-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20110200349 | Optical sensor and image forming apparatus incorporating optical sensor - An optical sensor attached to an apparatus includes a substrate and a light emitting element mounted on a first surface of the substrate. The light emitting element emits a light to a detection object in parallel to the substrate. A light receiving element is mounted on the first surface of the substrate. The light receiving element receives a regular reflection light reflected by the detection object. The said first surface serves as a positioning reference for positioning the optical sensor on an optical sensor mounting member provided in the apparatus. | 08-18-2011 |
Akira Yoshida, Wako JP
| Patent application number | Description | Published |
|---|---|---|
| 20110203682 | FAILURE DETECTING APPARATUS FOR HYDRAULIC CIRCUIT OF GEARBOX - A failure detecting apparatus for a hydraulic circuit of a gearbox includes an operating-state detector. The operating-state detector is configured to detect an operating state of a subject to be controlled with a control-signal pressure output from a solenoid valve. A current setting device is configured to set an electrical current supplied to a solenoid so as to close an output oil passage when a modulator valve is normal and to open the output oil passage when an open failure occurs in the modulator valve, while the solenoid valve is conductive. A failure determining device is configured to detect a failure of the modulator valve when the operating state of the subject to be detected by the operating-state detector is abnormal after a value of the electrical current to be supplied to the solenoid is set at the current setting device. | 08-25-2011 |