Patents by Inventor Jun Nakagawa
Jun Nakagawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140307364Abstract: An object of the invention is to provide an electrode material slurry for preparation of lithium-ion secondary batteries favorable in properties and superior in storage stability and an aqueous binder composition for lithium-ion secondary batteries that can be used for production of lithium-ion secondary batteries superior in discharge rate characteristics and cycle characteristics. Provided is a binder composition for lithium-ion secondary battery electrode, comprising polymer particles containing (a) an ethylenic unsaturated carboxylic ester compound and (b) an ethylenic unsaturated sulfonic acid compound at a (a)/(b) mass ratio of (98 to 91)/(2 to 9) in a total (a) and (b) amount of 70 mass % or more, based on the monomeric raw materials.Type: ApplicationFiled: November 2, 2012Publication date: October 16, 2014Applicants: SEI CORPORATION, DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Hironori Konishi, Daisuke Shimiya, Kazuhiro Kote, Takehiko Sawai, Shinji Saito, Jun Nakagawa
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Patent number: 8620117Abstract: An optical device includes a phase modulation element having an optical waveguide part and electrodes, the optical waveguide part being configured such that a laser light beam emitted by a laser light source is inputted to the optical waveguide part and having an optical waveguide layer formed of an electro-optic material, the electrodes being provided on respective sides of the optical waveguide part to apply a voltage to the optical waveguide layer, the phase modulation element being configured to modulate a phase of the laser light beam by using a refraction index modulation region formed in the optical waveguide layer when a voltage is applied to the optical waveguide layer through the electrodes, and a pump light source configured to irradiate at least the refraction index modulation region of the optical waveguide layer with a pump light beam.Type: GrantFiled: December 5, 2012Date of Patent: December 31, 2013Assignee: Ricoh Company, Ltd.Inventors: Jun Nakagawa, Tsuyoshi Hashiguchi, Kazuhiko Tsukamoto
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Patent number: 8483523Abstract: An optical waveguide electro-optic device including: a support substrate; an optical waveguide which has a core layer formed of a ferroelectric material, and is formed on an upper side of the support substrate; a lower electrode layer formed on a lower side of the core layer and which is adhered to the support substrate through an adhesion layer; an upper electrode layer formed on an upper side of the core layer; and an external electrode part, wherein the optical waveguide has an incidence plane from where light enters and an outgoing plane from where the light exits, the core layer has a polarization inversion region and a polarization non-inversion region, the upper electrode layer has a plane in such a shape that a width of the plane expands from a side of the incidence plane toward a side of the outgoing plane, to cover the polarization inversion region of the core layer, and the lower electrode layer is connected electrically to the external electrode part on the side of the incidence plane.Type: GrantFiled: August 31, 2010Date of Patent: July 9, 2013Assignee: Ricoh Company, Ltd.Inventors: Jun Nakagawa, Shuichi Suzuki, Atsushi Sakai, Koichiro Nakamura
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Patent number: 8463082Abstract: An electrooptic element includes an optical waveguide layer made from a ferroelectric material and having a polarization inverted region of a predetermined shape having an optical incidence face and an optical exit face, and an upper electrode layer and a lower electrode layer formed on a top face and a bottom face of the optical waveguide layer, respectively, in which the ferroelectric material is magnesium-oxide-doped lithium niobate, and at least one of the optical incidence face and the optical exit face of the optical waveguide layer is formed in parallel with a crystal face of the ferroelectric material.Type: GrantFiled: September 7, 2011Date of Patent: June 11, 2013Assignee: Ricoh Company, Ltd.Inventors: Jun Nakagawa, Koichiro Nakamura, Shuichi Suzuki
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Patent number: 8462412Abstract: An optical scanner includes a light source, an optical splitter which splits light from the light source into a plurality of light beams, an input optical element on which the light beams split by the optical splitter are incident, a driver which generates a voltage signal, an optical deflector which comprises at least two deflector portions formed close to each other on a same substrate and individually supplied with an electric action of the driver so as to capture and deflect the incident light beams using the electric action, and an output optical element which emits the deflected light beams to an image plane, wherein the optical scanner is configured to scan the image plane with the light beams by adjusting the voltage signal of the driver.Type: GrantFiled: September 8, 2010Date of Patent: June 11, 2013Assignee: Ricoh Company, Ltd.Inventors: Atsushi Sakai, Tsuyoshi Hashiguchi, Shuichi Suzuki, Jun Nakagawa, Koichiro Nakamura
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Publication number: 20130142473Abstract: An optical device includes a phase modulation element having an optical waveguide part and electrodes, the optical waveguide part being configured such that a laser light beam emitted by a laser light source is inputted to the optical waveguide part and having an optical waveguide layer formed of an electro-optic material, the electrodes being provided on respective sides of the optical waveguide part to apply a voltage to the optical waveguide layer, the phase modulation element being configured to modulate a phase of the laser light beam by using a refraction index modulation region formed in the optical waveguide layer when a voltage is applied to the optical waveguide layer through the electrodes, and a pump light source configured to irradiate at least the refraction index modulation region of the optical waveguide layer with a pump light beam.Type: ApplicationFiled: December 5, 2012Publication date: June 6, 2013Inventors: Jun Nakagawa, Tsuyoshi Hashiguchi, Kazuhiko Tsukamoto
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Patent number: 8305589Abstract: An image processing apparatus comprises: an image transformation section which generates, from print data, image data of character or line drawing of gradation value n1 and image data of a photographic image of gradation value n2 (n2>n1); an encoding section which encodes the image data of the character or the line drawing of the gradation value n1, and generates the encoded image data of the character or the line drawing of the gradation value n2; an attribute adding section which generates attribute data indicating an attribute of each of images with respect to the encoded image data of the character or the line drawing of the gradation value n2 and the generated image data of the photographic image of the gradation value n2, and adds the attribute data to each of the encoded image data of the character or the line drawing and the generated image data of the photographic image; and a synthesizing section which synthesizes the encoded image data of the character or the line drawing to which the attributeType: GrantFiled: June 9, 2008Date of Patent: November 6, 2012Assignee: Konica Minolta Business Technologies, Inc.Inventor: Jun Nakagawa
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Publication number: 20120155824Abstract: An electro-optical element includes a core layer made of an electro-optical material, a clad structure disposed on each of opposite sides of the core layer and configured to form an optical waveguide together with the core layer, and a pair of electrode layers, one of which being disposed on one side of the clad structure and another being disposed on another side of the clad structure. The clad structure includes a first clad layer and a second layer. The second clad layer has a dielectric permittivity larger than that of the first clad layer, and the second clad layer has a thickness thicker than that of the first clad layer.Type: ApplicationFiled: August 25, 2010Publication date: June 21, 2012Inventors: Shuichi Suzuki, Atsushi Sakai, Koichiro Nakamura, Jun Nakagawa
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Publication number: 20120063715Abstract: An electrooptic element includes an optical waveguide layer made from a ferroelectric material and having a polarization inverted region of a predetermined shape having an optical incidence face and an optical exit face, and an upper electrode layer and a lower electrode layer formed on a top face and a bottom face of the optical waveguide layer, respectively, in which the ferroelectric material is magnesium-oxide-doped lithium niobate, and at least one of the optical incidence face and the optical exit face of the optical waveguide layer is formed in parallel with a crystal face of the ferroelectric material.Type: ApplicationFiled: September 7, 2011Publication date: March 15, 2012Inventors: Jun Nakagawa, Koichiro Nakamura, Shuichi Suzuki
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Patent number: 8051321Abstract: When a first server node fails in a cluster system, a client node device transmits failure detection information to a second server node device. Upon receipt of the failure detection information, the second server node device transmits a survival confirmation request to the first server node device. When receiving no survival confirmation response from the first server node device, the second server node device determines that the first server node device has failed and starts the switching control of a server node device which performs a service process. Upon receipt of failure detection information, the second server node device starts switching control when further receiving failure detection information from another client node device.Type: GrantFiled: August 25, 2009Date of Patent: November 1, 2011Assignee: Fujitsu LimitdInventors: Jun Nakagawa, Takahiro Kojima, Ryuji Maruyama, Shinji Yamauchi, Keiji Sakai
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Publication number: 20110069367Abstract: An optical scanner includes a light source, an optical splitter which splits light from the light source into a plurality of light beams, an input optical element on which the light beams split by the optical splitter are incident, a driver which generates a voltage signal, an optical deflector which comprises at least two deflector portions formed close to each other on a same substrate and individually supplied with an electric action of the driver so as to capture and deflect the incident light beams using the electric action, and an output optical element which emits the deflected light beams to an image plane, wherein the optical scanner is configured to scan the image plane with the light beams by adjusting the voltage signal of the driver.Type: ApplicationFiled: September 8, 2010Publication date: March 24, 2011Inventors: Atsushi SAKAI, Tsuyoshi Hashiguchi, Shuichi Suzuki, Jun Nakagawa, Koichiro Nakamura
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Publication number: 20110064352Abstract: An optical waveguide electro-optic device including: a support substrate; an optical waveguide which has a core layer formed of a ferroelectric material, and is formed on an upper side of the support substrate; a lower electrode layer formed on a lower side of the core layer and which is adhered to the support substrate through an adhesion layer; an upper electrode layer formed on an upper side of the core layer; and an external electrode part, wherein the optical waveguide has an incidence plane from where light enters and an outgoing plane from where the light exits, the core layer has a polarization inversion region and a polarization non-inversion region, the upper electrode layer has a plane in such a shape that a width of the plane expands from a side of the incidence plane toward a side of the outgoing plane, to cover the polarization inversion region of the core layer, and the lower electrode layer is connected electrically to the external electrode part on the side of the incidence plane.Type: ApplicationFiled: August 31, 2010Publication date: March 17, 2011Inventors: Jun NAKAGAWA, Shuichi Suzuki, Atsushi Sakai, Koichiro Nakamura
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Patent number: 7880940Abstract: An image processing apparatus including: a storage unit including a plurality of memory modules, the storage unit storing image data having been subjected to a main scanning shift processing into the memory modules; and a control unit dividing a first memory area at a center position of main scanning, the first memory area set to increase a total storage capacity as a shift amount in a sub scanning direction becomes larger, the control unit superposing the divided first memory areas so as to counteract memory un-use areas to set a second memory area, the control unit selecting the memory modules corresponding to the second memory area to read and write the image data, the control unit thereby performing sub scanning shift processing of the image data.Type: GrantFiled: July 20, 2007Date of Patent: February 1, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventor: Jun Nakagawa
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Patent number: 7843453Abstract: An operation input reception unit (201) receives an operation input for a virtual vehicle to be run on the running path. Further, a running condition managing unit (203) manages the running condition of the virtual vehicle based on the received operation input. Then, a video generation unit (204) generates a front image appearing in front of the virtual vehicle, based on image information stored in an image information storage unit (202) and the managed running condition. Meanwhile, a load calculation unit (205) calculates a load to be imposed on the virtual vehicle, based on the managed running condition. Further, a tire drawing unit (206) draws a tire image whose shape is changed according to the calculated load. Then, a display control unit (208) synthesizes the generated front image and the tire image, and displays the synthesized image.Type: GrantFiled: September 1, 2005Date of Patent: November 30, 2010Assignee: Konami Digital Entertainment Co., Ltd.Inventors: Jun Nakagawa, Yutaka Ito
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Patent number: 7796132Abstract: An objective is to provide an image generation system and program which can overcome the problem of flickering in screen due to the appearance and disappearance of distant objects. A depth cueing processing is executed such that the color of an object being more distant from the viewpoint is made closer to the target color. At the same time, the alpha value is varied such that an object being more distant from the viewpoint is made more transparent. By drawing the most distant background including a color different from the target color, the generated images can be improved in variety. The depth cueing and alpha value varying processings are carried out on condition that the object is positioned within the depth cueing area. The depth cueing value and alpha value for each vertex in the object are varied based on a Z-value for the vertex. Objects to be varied in the alpha value are sorted such that they are drawn sequentially from an object nearest to the viewpoint.Type: GrantFiled: October 24, 2000Date of Patent: September 14, 2010Assignee: Namco Bandai Games Inc.Inventor: Jun Nakagawa
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Publication number: 20100017646Abstract: When a first server node fails in a cluster system, a client node device transmits failure detection information to a second server node device. Upon receipt of the failure detection information, the second server node device transmits a survival confirmation request to the first server node device. When receiving no survival confirmation response from the first server node device, the second server node device determines that the first server node device has failed and starts the switching control of a server node device which performs a service process. Upon receipt of failure detection information, the second server node device starts switching control when further receiving failure detection information from another client node device.Type: ApplicationFiled: August 25, 2009Publication date: January 21, 2010Applicant: FUJITSU LIMITEDInventors: Jun Nakagawa, Takahiro Kojima, Ryuji Maruyama, Shinji Yamauchi, Keiji Sakai
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Patent number: 7643050Abstract: An information recording apparatus for recording image information on an image forming body, the apparatus including: a light source for emitting light; a light valve of diffraction grating type, for modulating the light emitted from the light source according to the image information, the light valve comprising a plurality of ribbons arranged in an array; and an optical section for forming an image on the image forming body with the light diffracted and modulated by the light valve, wherein a longitudinal direction of the ribbons of the light valve is arranged at a specific angle with respect to a direction perpendicular to the array direction of the ribbons.Type: GrantFiled: October 22, 2007Date of Patent: January 5, 2010Assignee: Konica Minolta Business Technologies, Inc.Inventor: Jun Nakagawa
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Patent number: 7562114Abstract: A method and system for supporting responding to an inquiry received from a client regarding a digital content published on at least one server respectively corresponding to at least one content record each containing a content identifier identifying the digital content, a network address of a server, and a publishing period at the server for the digital content. Information derived from the inquiry (i.e., at least one network address keyword relating a first server's network address from which the digital content was accessed by the client at an accessed time, and one or more narrowing keywords pertaining to the digital content) is utilized to identify the first server's network address, obtain the content identifier of the digital content, and extract at least one response template from a response database. An inquiry response containing a selected response template is transmitted to the client in response to the received inquiry.Type: GrantFiled: June 25, 2007Date of Patent: July 14, 2009Assignee: International Business Machines CorporationInventors: Jun Nakagawa, Amane Nakajima
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Publication number: 20090021755Abstract: An image processing apparatus comprises: an image transformation section which generates, from print data, image data of character or line drawing of gradation value n1 and image data of a photographic image of gradation value n2 (n2>n1); an encoding section which encodes the image data of the character or the line drawing of the gradation value n1, and generates the encoded image data of the character or the line drawing of the gradation value n2; an attribute adding section which generates attribute data indicating an attribute of each of images with respect to the encoded image data of the character or the line drawing of the gradation value n2 and the generated image data of the photographic image of the gradation value n2, and adds the attribute data to each of the encoded image data of the character or the line drawing and the generated image data of the photographic image; and a synthesizing section which synthesizes the encoded image data of the character or the line drawing to which the attributeType: ApplicationFiled: June 9, 2008Publication date: January 22, 2009Inventor: Jun NAKAGAWA
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Patent number: 7460280Abstract: An image-reading apparatus reads an image on a document by controlling a main-scanning operation in accordance with an index period, a sub-scanning operation in accordance with a line-thinning rate, and a reading velocity of reading the image in a sub-scanning direction in accordance with a magnification factor. The apparatus includes an inputting section to input the magnification factor, an index period changing section to control the index period, based on the magnification factor, and a line-thinning rate changing section to control the line-thinning rate, based on the magnification factor. The index period changing section may select one of a plurality of index periods, including at least normal and long index periods, to control the index period. The thinning-rate changing section may select one of a plurality of line-thinning rates, including line-thinning rates indicating activation and deactivation of a line-thinning operation, to control the line-thinning rate.Type: GrantFiled: December 30, 2002Date of Patent: December 2, 2008Assignee: Konica CorporationInventor: Jun Nakagawa