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Nobuo Nakamura

Nobuo Nakamura, Kanagawa JP

Patent application numberDescriptionPublished
20090066823SOLID-STATE IMAGE PICKUP DEVICE AND CLAMP CONTROL METHOD THEREFOR - In an analog front end (FE) IC chip having a CDS (Correlated Double Sampling) function and an AGC (Automatic Gain Control) function, a clamp circuit for clamping an output signal during a black reference signal period is equipped with a mechanism for suppressing the effect of noises contaminated from a power source, external circuits, etc.03-12-2009
20090237545SOLID-STATE IMAGE PICKUP DEVICE AND CONTROL METHOD THEREOF - An image sensor controls the gain of a pixel signal on a pixel-by-pixel basis and extends a dynamic range while maintaining a S/N ratio at a favorable level. A column unit in an image sensor is independently detects a level of each pixel signal and independently sets a gain for level of the signal. A photoelectric converting region unit has pixels arranged two-dimensionally with a vertical signal line for each pixel column to output each pixel signal. The column unit is on an output side of the vertical signal line. The column unit for each pixel column has a pixel signal level detecting circuit, a programmable gain control, a sample and hold (S/H) circuit. Gain correction is performed according to a result of a detected level of the pixel signal.09-24-2009
20100110243SOLID STATE IMAGING DEVICE - A solid-state imaging device is capable of simplifying the pixel structure to reduce the pixel size and capable of suppressing the variation in the characteristics between the pixels when a plurality of output systems is provided. A unit cell (05-06-2010
20100110244SOLID STATE IMAGING DEVICE - A solid-state imaging device is capable of simplifying the pixel structure to reduce the pixel size and capable of suppressing the variation in the characteristics between the pixels when a plurality of output systems is provided. A unit cell (05-06-2010
20100178725SOLID STATE IMAGE PICKUP DEVICE - P type semiconductor well regions 07-15-2010
20100308386SOLID STATE IMAGE PICKUP DEVICE AND METHOD OF PRODUCING SOLID STATE IMAGE PICKUP DEVICE - Forming a back-illuminated type CMOS image sensor, includes process for formation of a registration mark on the wiring side of a silicon substrate during formation of an active region or a gate electrode. A silicide film using an active region may also be used for the registration mark. Thereafter, the registration mark is read from the back side by use of red light or near infrared rays, and registration of the stepper is accomplished. It is also possible to form a registration mark in a silicon oxide film on the back side (illuminated side) in registry with the registration mark on the wiring side, and to achieve the desired registration by use of the registration mark thus formed.12-09-2010
20110025420METHOD OF CONTROLLING SEMICONDUCTOR DEVICE, SIGNAL PROCESSING METHOD, SEMICONDUCTOR DEVICE, AND ELECTRONIC APPARATUS - A pre-amplifier (column region unit) of a solid-state imaging device including a pixel-signal controller. The pixel-signal controller, for each vertical signal line, detects the level of each pixel signal independently by a pixel-signal detector on the output side of a pixel-signal amplifier, and sets a gain independently to the pixel-signal amplifier according to the level of the signal. At a subsequent stage of the solid-state imaging device, an analog-to-digital (A/D) converter and a signal extending unit are provided. The A/D converter digitizes a pixel signal, and the digitized pixel signal is corrected by a gain set to the pixel-signal amplifier with reference to a classification signal from the pixel-signal detector, so that the dynamic range of signals of one screen is extended.02-03-2011

Patent applications by Nobuo Nakamura, Kanagawa JP

Nobuo Nakamura, Fukuoka JP

Patent application numberDescriptionPublished
20080239124SOLID-STATE IMAGING DEVICE, SIGNAL PROCESSING METHOD OF SOLID-STATE IMAGING DEVICE AND IMAGING APPARATUS - A solid-state imaging device is disclosed. The device includes: a pixel array unit in which unit pixels including photoelectric conversion elements are two-dimensionally arranged and a first signal and a second signal are outputted to a signal line as a pixel signal; a signal processing unit including a variable gain amplifier, and an analog/digital converter; a signal supply unit supplying a reference signal; plural memory units holds the reference signal passed through the signal processing unit so as to correspond to the plural gains respectively when the variable gain amplifier is set at the plural gains respectively; and a correction unit subtracting the reference signal held in the plural memory units from the pixel signal outputted from each unit pixel in an active pixel area of the pixel array unit and passed through the signal processing unit when the variable gain amplifier is set at the plural gains respectively.10-02-2008
20090140124IMAGING DEVICE CAMERA SYSTEM AND DRIVING METHOD OF THE SAME - An imaging device includes: a pixel array part in which a plurality of pixels with different characteristics of spectral sensitivity are arranged in an array and which converts light transmitted through the pixel into an electric signal, wherein in the pixel array part, among a first color filter pixel, a second color filter pixel, and a third color filter pixel, each including a color filter, at least a plurality of the first color filter pixels and the second color filter pixels is arranged in an oblique pixel array system, and a clear pixel having a high transmittance is arranged in an oblique pixel array system at a given position of a given row and a given column in the oblique pixel array with respect to the first color filter pixel, the second color filter pixel, and the third color filter pixel.06-04-2009
20100134665IMAGING DEVICE CAMERA SYSTEM AND DRIVING METHOD OF THE SAME - An imaging device including: an electronic shutter and a pixel array part. The pixel array part has a plurality of pixels with different characteristics of spectral sensitivity arranged in an array and which converts light transmitted through the pixel into an electric signal. The pixel array part has a plurality of color pixels and at least one clear pixel, the plurality of color pixels including (i) a first color filter pixel having a peak of spectral sensitivity characteristics in red, (ii) a second color filter pixel having a peak in blue, and (iii) a third color filter pixel having a peak in green. At least a portion of the plurality of color filter pixels is arranged in an oblique pixel array system and at least one clear pixel having a high transmittance is arranged in the oblique pixel array system at a given position of a given row and a given column with respect to the first color filter pixel, the second color filter pixel, and the third color filter pixel; and the electronic shutter is separately driven for the at least one clear pixel and for the plurality of color filter pixels.06-03-2010
20100141813IMAGING DEVICE CAMERA SYSTEM AND DRIVING METHOD OF THE SAME - An imaging device including: a pixel array part in which a plurality of pixels with different characteristics of spectral sensitivity are arranged in an array and which converts light transmitted through the pixel into an electric signal. The pixel array part has a plurality of color pixels and at least one clear pixel, the plurality of color pixels including (i) a first color filter pixel having a peak of spectral sensitivity characteristics in red, (ii) a second color filter pixel having a peak in blue, and (iii) a third color filter pixel having a peak in green. At least a portion of the plurality of color filter pixels is arranged in an oblique pixel array system and at least one clear pixel having a high transmittance is arranged in the oblique pixel array system at a given position of a given row and a given column with respect to the first color filter pixel, the second color filter pixel, and the third color filter pixel; and a first read channel is exclusively coupled to the at least one clear pixel and a second read channel is exclusively coupled to the plurality of color filter pixels.06-10-2010
20100141814IMAGING DEVICE CAMERA SYSTEM AND DRIVING METHOD OF THE SAME - An imaging device including: an electronic shutter and a pixel array part. The pixel array part has a plurality of pixels with different characteristics of spectral sensitivity arranged in an array and which converts light transmitted through the pixel into an electric signal. The pixel array part has a plurality of color pixels and at least one clear pixel, the plurality of color pixels including (i) a first color filter pixel having a peak of spectral sensitivity characteristics in red, (ii) a second color filter pixel having a peak in blue, and (iii) a third color filter pixel having a peak in green. At least a portion of the plurality of color filter pixels is arranged in an oblique pixel array system and at least one clear pixel having a high transmittance is arranged in the oblique pixel array system at a given position of a given row and a given column with respect to the first color filter pixel, the second color filter pixel, and the third color filter pixel. A first read channel is exclusively coupled to the at least one clear pixel and a second read channel is exclusively coupled to the plurality of color filter pixels; and the electronic shutter is separately driven for the at least one clear pixel and for the plurality of color filter pixels.06-10-2010

Patent applications by Nobuo Nakamura, Fukuoka JP

Nobuo Nakamura, Nishinomiya-Shi JP

Patent application numberDescriptionPublished
20100041791BIODEGRADABLE RESIN COMPOSITION AND MOLDED ARTICLE OF THE SAME - An object of the invention is to provide a resin composition which is particularly excellent in impact resistance, tensile elongation characteristics, heat resistance, surface properties, moldability and the like accompanied by less time dependent alteration of these properties and which is produced by mixing a certain plasticizer with a biodegradable polymer of plant origin, and to provide a molded product of the composition. The present invention can provide a resin composition comprising a biodegradable 3-hydroxyalkanoate copolymer (A) and a plasticizer (B), wherein: the biodegradable 3-hydroxyalkanoate copolymer (A) has a recurring unit represented by the structure formula (1): [—CHR—CH02-18-2010

Nobuo Nakamura, Tokyo JP

Patent application numberDescriptionPublished
20090237771FARADAY ROTATOR - A Faraday rotator having a magnet member constituted of a first magnet standing magnetized in the direction perpendicular to the optical axis and taken toward the optical axis, a second magnet standing magnetized in the direction perpendicular to the optical axis and taken against the optical axis, and a third magnet disposed between these magnets and standing magnetized in the direction parallel to the optical axis and taken toward the first magnet from the second magnet. A through-hole (hollow spaces) inside which a Faraday element is disposed, is provided through the center of these magnets and, where the length of the first magnet and that of the second magnet in the optical-axis direction are both represented by L09-24-2009

Nobuo Nakamura, Osaka JP

Patent application numberDescriptionPublished
20090076191BIODEGRADABLE RESIN COMPOSITION AND MOLDED ARTICLE PRODUCED FROM THE SAME - Disclosed is a resin composition excellent in impact resistance, tensile properties and processability such as draw down property, which is produced by using a plant-derived biodegradable polymer produced by actively fixing carbon dioxide present in the earth. A resin composition comprising (A) a specific biodegradable (3-hydroxyalkanoate) copolymer, (B) a graft copolymer and (C) an acrylic processing modifier, the graft copolymer (B) and the acrylic processing modifier (C) being contained in the composition in amounts of 0.1 to 100 parts by weight and 0.1 to 30 parts by weight, respectively, based on 100 parts by weight of the biodegradable (3-hydroxyalkanoate) copolymer (A).03-19-2009
20090111921Biodegradable Resin Composition and Molded Article Produced From The Same - Disclosed is a resin composition excellent in molding processability which comprises a plant-derived biodegradable plastic produced by actively fixing carbon dioxide present in the earth. A resin composition excellent in molding processability, comprising (A) a biodegradable (3-hydroxyalkanoate) copolymer having a recurring unit represented by the formula (1): [—CHR—CH04-30-2009

Nobuo Nakamura, Mie JP

Patent application numberDescriptionPublished
20090080687SPEAKER DIAPHRAGM, SPEAKER DUST CAP, SPEAKER SUB-CONE, SPEAKER USING THESE COMPONENTS, AND ELECTRONIC APPARATUS USING THE SAME - A loudspeaker of high sound quality is achieved by improving rigidity of a material used for a diaphragm, a dust cap and a sub-cone. The diaphragm, the dust cap and the sub-cone of the loudspeaker are made of a paper beaten with the material containing bamboo fibers obtained from a bamboo tree aged one year or older, of which the fibers are finely beaten to an extent of micro-fibrillated form. The diaphragm and the dust cap are also made with a beaten paper containing at least 2 wt % of “A fibers” having stems of no greater than 30 μm in diameter, and surfaces of the stems are fibrillated into shaggy branches having diameters of 1 μm or less.03-26-2009