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Iwata, Yokohama-Shi

Junji Iwata, Yokohama-Shi JP

Patent application numberDescriptionPublished
20110136291MANUFACTURING METHOD OF A SOLID-STATE IMAGE PICKUP APPARATUS - Provided is a manufacturing method of a solid-state image pickup apparatus including: a step of forming a first semiconductor region of a first conductivity type in a semiconductor substrate, according to an ion implantation method from a first surface of the semiconductor substrate; a step of forming a plurality of photoelectric conversion regions between the first semiconductor region and the first surface of the semiconductor substrate; a first removing step by polishing the semiconductor substrate from a second surface of the semiconductor substrate; and a second removing step by reducing a thickness of the semiconductor substrate from the second surface of the semiconductor substrate, in a speed lower than that of the first removing step, after the first removing step, in which the second removing step continues until the first semiconductor region is exposed.06-09-2011
20110141328SOLID-STATE IMAGE SENSOR AND CAMERA - A solid-state image sensor including a plurality of pixels formed on a semiconductor substrate, each pixel comprising a photoelectric conversion element including a charge accumulation region of a first conductivity type, a floating diffusion of the first conductivity type, and a transfer transistor which transfers charge in the charge accumulation region to the floating diffusion, comprises an element isolation region made of an insulator and arranged to isolate adjacent pixels from each other, and an impurity diffusion region of a second conductivity type arranged inside the semiconductor substrate to isolate adjacent pixels from each other, wherein a peak position of an impurity concentration of the impurity diffusion region of one pixel is disposed within a width of the floating diffusion, of the one pixel, along a straight line passing through the photoelectric conversion element, a gate electrode of the transfer transistor, and the floating diffusion which are of the one pixel.06-16-2011

Katsuo Iwata, Yokohama-Shi JP

Patent application numberDescriptionPublished
20080212418OPTICAL DISC DEVICE - According to one embodiment, an optical head device provides a signal processing circuit which sets a control amount to move an objective lens so that a distance between the objective lens and a given recording layer of the an optical disc coincides with a focal position, an optical path length correction mechanism which corrects an influence of an aberration component producing an error in the focal distance, a thickness difference detection circuit which finds an amount of correction to be made by the optical path length, and an aberration correction circuit which generates a correction signal to correct the influence of the aberration component producing the error in the focal distance detected by the thickness difference detection circuit, and supplies the correction signal to the optical path length correction mechanism.09-04-2008
20090003182OPTICAL DISC APPARATUS WITH OPTICAL HEAD UNIT - According to one embodiment, an APC photodetector accepts a light beam branched from a light beam toward a recording medium by a branching mirror and detects intensity of a light beam supplied from a light source, a light quantity adjusting element adjusts the intensity of the light beam, and the intensity of the light beam incident to the APC photodetector is changed in a continuous manner or a stepwise manner by the light quantity adjusting element. Therefore, when the single APC photodetector detects recording and reproducing light beams, the recording and reproducing light beams can fall within a dynamic range of the APC photodetector.01-01-2009
20100027385ABERRATION CORRECTING DEVICE, OPTICAL HEAD, AND OPTICAL DISC APPARATUS - An aberration correcting device includes: a first transparent electrode; a second transparent electrode; and a liquid crystal layer disposed between the first transparent electrode and the second transparent electrode, having refractive index varying according to an electric field applied to the liquid crystal layer, wherein the first transparent electrode has a first circular dividing line and a second circular dividing line formed outside the first circular division line arranged to be concentric with the second circular dividing line, and wherein a region between the first circular dividing line and the second circular dividing line is radially divided by plural radial dividing lines.02-04-2010
20100027402OPTICAL HEAD DEVICE AND OPTICAL DISC APPARATUS - An optical head device includes: a diffraction unit including a plurality of diffraction portions each diffracting a incident light in a given direction, the light beam being reflected by an optical disc; and a photodetection unit including a plurality of photodetectors each outputting a signal corresponding to an intensity of an irradiated light, wherein the photodetectors include at least two first photodetectors for generating a compensation value to compensate a tracking error signal, and wherein the diffraction portions include at least two first portions for focusing the incident light into the first photodetectors.02-04-2010

Patent applications by Katsuo Iwata, Yokohama-Shi JP

Kazuo Iwata, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090293827VALVE SPRING DEVICE AND VALVE TRAIN OF INTERNAL COMBUSTION ENGINE USING THE SAME - A port is formed in a cylinder head of an engine. The port is opened and closed by a valve. A valve spring device is provided with a first spring and a second spring. The second spring is contained in a housing and held by a stopper in a manner such that it is compressed along an axis or subjected to a preload. The preload of the second spring is larger than an installation load of the first spring. An axial load acts on the springs. The valve spring device has load-deflection characteristics such that only the first spring deforms axially when the axial load is not larger than a predetermined value and that both the first and second springs deform axially when the axial is load exceeds the predetermined value.12-03-2009
20100139596VALVE SPRING DEVICE AND VALVE TRAIN OF ENGINE USING THE SAME - A valve spring device is provided with a first coil spring and a second coil spring combined in series with each other. The inside diameter (coil inside diameter) of the second coil spring is greater than the outside diameter (coil outside diameter) of the first coil spring. A part of the first coil spring including an end portion along an axis is inserted into the second coil spring, thereby forming a combined spring. The end portion of the first coil spring and an end portion of the second coil spring are connected to each other by a connecting member. The first and second coil springs are compressed along the axis as they are located in series between a cylinder head and a retainer. A shaft of a valve is passed within the coil springs.06-10-2010
20110132137DAMPER SPRING DEVICE, FLYWHEEL, CLUTCH DISK, AND CLUTCH DISK FOR LOCKUP MECHANISM - A damper spring device is provided with a first spring and a second spring retained by a stopper in such a manner that the second spring is compressed by a preload. The preload on the second spring is greater than a preload on the first spring. The first spring and the second spring have load-deflection characteristics such that the first spring deforms when an axial load acting in the direction of compression of the first spring is not greater than a load at which a strand of the first spring is at least partially compacted and that the first spring and the second spring deform when the axial load is greater than the load at which the strand of the first spring is at least partially compacted.06-09-2011

Patent applications by Kazuo Iwata, Yokohama-Shi JP

Kenji Iwata, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100196255CATALYST AND PRODUCTION PROCESS THEREOF, AND CHLORINE PRODUCTION USING THE CATALYST - A catalyst has high activity and is suitable for use in producing chlorine by oxidizing hydrogen chloride with oxygen. The catalyst includes copper, an alkali metal and a rare earth and has pores of which pores having a diameter of 5 to 15 nm have a pore volume of 0.4 to 2.0 ml/g.08-05-2010

Naohiro Iwata, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090278902PRINTER - A printer includes a set cover pivotally movably provided on a carriage. The cover can be set in a closed state in which the cover presses a head of the cartridge housed in the housing portion and an open state in which the cover opens the housing portion when the cartridge is replaced. A release lever is subjected to a bias force so as to protrude from an inner wall surface of the housing portion. The release lever is movable against the bias force. The release lever comes into contact with an end of the cartridge which faces the bottom surface when the cartridge is inserted into the housing portion. The release lever contacts the rear surface of the cartridge housed in the housing portion. The bias force is stronger when the cover is in the open state than when the cover is in the closed state.11-12-2009
20090295079SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS - A first conveying mechanism includes an intermediate conveying roller for conveying a recording sheet, an intermediate conveying roller shaft for supporting the intermediate conveying roller, an intermediate conveying roller drive mechanism for rotationally driving the intermediate conveying roller shaft, and a roller control mechanism for controlling movements of the intermediate conveying roller relative to the intermediate conveying roller shaft. The roller control mechanism performs skew correction along with conveying the recording sheet by rotating the intermediate conveying roller integrally with the intermediate conveying roller shaft while the intermediate conveying roller drive mechanism rotationally drives the intermediate conveying roller shaft and stops the rotational drive of the intermediate conveying roller shaft performed by the intermediate conveying roller drive mechanism after the skew correction to cause the intermediate conveying roller to be movable within a predetermined range in the axial direction of the intermediate conveying roller shaft.12-03-2009

Tetsu Iwata, Yokohama-Shi JP

Patent application numberDescriptionPublished
20080252708INK SET, INK CARTRIDGE SET, INK JET RECORDING METHOD, RECORDING UNIT, AND INK JET RECORDING APPARATUS - An ink set is provided which can prevent the occurrence of a new color mixing phenomenon in which a different ink comes into the insides of particular ink channels. The ink set is constituted of plurality of inks. The plurality of inks constituting the ink set is stored respectively in ink cartridges each having an ink storage portion which is brought into a hermetically-closed state. The difference in specific gravity between a first ink having the largest specific gravity and a second ink having the smallest specific gravity among the inks constituting the ink set is less than 0.020.10-16-2008
20090185019REACTION LIQUID, SET OF INK AND REACTION LIQUID, INK JET RECORDING APPARATUS AND IMAGE RECORDING METHOD - A reaction liquid destabilizing the dissolved state or dispersed state of a coloring material by being in contact with an ink containing the coloring material on a recording medium, wherein the reaction liquid contains at least calcium ions, glycerin and polyethylene glycols, and wherein the content and ratio of these components are specified.07-23-2009
20100075046AQUEOUS INK, AQUEOUS INK SET, INK CARTRIDGE, INK-JET RECORDING APPARATUS, INK-JET RECORDING METHOD, AND IMAGE-FORMING METHOD - An aqueous ink comprises water, a water-insoluble coloring material, and plurality of water-soluble organic solvents and the plurality of water-soluble organic solvents including a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material. The ratio of the content of the poor medium and the content of the good medium is in a specific range. A water-soluble organic solvent showing the maximum Ka value out of respective Ka values of the plurality of water-soluble organic solvents is the poor medium. When the aqueous ink is in contact with a specific reaction liquid, the dissolution state or dispersed state of the water-insoluble coloring material in the ink is made unstable. As a result, an image which has a sufficiently large area factor even with a small amount of ink droplets and is excellent in image density, bleeding resistance, and fixability can be obtained. In addition, the aqueous ink is excellent in storage stability.03-25-2010
20110001775CLEAR INK, INK JET RECORDING METHOD, INK SET, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPARATUS - Provided is an ink jet clear ink containing a polymer fine particle. The polymer fine particle has a core-shell structure obtained by polymerizing an α,β-ethylenically unsaturated hydrophobic monomer (b) as a core polymer in the presence of a shell polymer that is a copolymer having at least a unit derived from an α,β-ethylenically unsaturated hydrophobic monomer (a) and a unit derived from a monomer selected from an α,β-ethylenically unsaturated acid monomer and a salt thereof. The α,β-ethylenically unsaturated hydrophobic monomer (b) includes at least a monomer containing a chain structure saturated alkyl group.01-06-2011

Patent applications by Tetsu Iwata, Yokohama-Shi JP

Tsutomu Iwata, Yokohama-Shi JP

Patent application numberDescriptionPublished
20110127286CHANGE REPLENISHMENT MANAGEMENT SYSTEM AND COIN ROLL STORAGE - The change replenishment management system includes a coin roll storage (06-02-2011

Yumiko Iwata, Yokohama-Shi JP

Patent application numberDescriptionPublished
20080307319IMAGE-FORMING APPARATUS AND INFORMATION-PROCESSING METHOD - An image-forming apparatus includes a web browser and is connectable to a network. The image-forming apparatus includes a transmission unit configured to transmit a menu request including identification information of the image-forming apparatus, a reception unit configured to receive a response to the menu request from a management server via the network, an execution unit configured to analyze and execute a processing command included in content of the response received by the reception unit, and a display unit configured to generate a display file by embedding a processing result of the processing command executed by the execution unit into the content of the response received by the reception unit and to display the display file via the web browser.12-11-2008
20090195815IMAGE FORMING APPARATUS AND PROCESSING METHOD FOR THE SAME - When an instruction to shut down an image forming apparatus is provided, a list of tasks is generated and displayed based on the characteristics and operation state of each task. If an instruction to cancel a displayed running task is provided, processing of the task is canceled and shutdown processing is performed. Thus, user convenience can be improved by displaying whether or not the running tasks are cancelable when an instruction to shut down the image forming apparatus is provided.08-06-2009
20090219572IMAGE FORMING APPARATUS AND INFORMATION PROCESSING METHOD - An image forming apparatus includes a storage unit configured to store attribute information about a job executed on the image forming apparatus, a detection unit configured to detect a jam that has occurred on the image forming apparatus, and a generation unit configured to generate a test job in which a print setting is set based on a type of the jam detected by the detection unit and the job attribute information corresponding to the jam and stored on the storage unit.09-03-2009