Patents by Inventor Shuji Takamatsu
Shuji Takamatsu 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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Patent number: 9854225Abstract: An imaging unit includes a plurality of imaging devices configured to capture images of an object; a circuit substrate configured to generate image data based on the images captured by the imaging devices; a chassis that holds the imaging devices; and a heat transfer member including a contacting portion configured to contact an installed member in a case where the imaging unit is installed on the installed member. The heat transfer member contacts the chassis or the circuit substrate, and heat conductivity of the heat transfer member is greater than the heat conductivity of the chassis.Type: GrantFiled: June 16, 2015Date of Patent: December 26, 2017Assignee: RICOH COMPANY, LTD.Inventors: Tomonori Kimura, Shu Kambe, Maiko Yasui, Shuji Takamatsu, Masashi Adachi
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Optical scanner with housing to support light sources and image forming apparatus incorporating same
Patent number: 9333766Abstract: An optical scanner, which is included in an image forming apparatus, includes a light source including a recessed portion provided on an outer circumference thereof, and a housing configured to support the light source. The housing includes a positioning unit configured to position the light source in a vertical optical axis of the light source, and a cutout provided on an inner circumference of the positioning unit. The light source is positioned to the positioning unit with the recessed portion being disposed at the cutout and then is fixed to the housing. The image forming apparatus includes an image carrier configured to form an image on a surface thereof, and the above-described optical scanner.Type: GrantFiled: November 4, 2013Date of Patent: May 10, 2016Assignee: Ricoh Company, Ltd.Inventors: Kazunori Watanabe, Keiichi Serizawa, Hiroshi Johno, Shuji Takamatsu -
Publication number: 20160006911Abstract: An imaging unit includes a plurality of imaging devices configured to capture images of an object; a circuit substrate configured to generate image data based on the images captured by the imaging devices; a chassis that holds the imaging devices; and a heat transfer member including a contacting portion configured to contact an installed member in a case where the imaging unit is installed on the installed member. The heat transfer member contacts the chassis or the circuit substrate, and heat conductivity of the heat transfer member is greater than the heat conductivity of the chassis.Type: ApplicationFiled: June 16, 2015Publication date: January 7, 2016Inventors: Tomonori KIMURA, Shu KAMBE, Maiko YASUI, Shuji TAKAMATSU, Masashi ADACHI
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Patent number: 8922859Abstract: A method of assembling a light source comprises the steps of inserting multiple lead wires of a light emitting element into an insertion hole formed in a circuit board from one side of the circuit board at once, striking tips of the multiple lead wires with corresponding multiple guides formed on a circumference of a pressing device serving as a jig from the other side of the circuit board, moving the pressing device toward the one side from the other side of the circuit board, and in a first stage guiding the multiple lead wires to corresponding terminals formed in an inner wall of the insertion hole of the circuit board, respectively.Type: GrantFiled: September 6, 2012Date of Patent: December 30, 2014Assignee: Ricoh Company, Ltd.Inventor: Shuji Takamatsu
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Patent number: 8911112Abstract: A light emitting element adjusting and fixing structure includes a light emitting element having a plurality of light emitting points is fixed to a housing with a holding member. The housing includes a mounting hole having a reference plane to which the light emitting element is mounted, and a holding portion for holding the holding member such that the light emitting element can be rotated in contact with the reference plane. A distance between the adjacent light emitting points in a projection plane of the light emitting points can be adjusted by rotationally adjusting the light emitting element with respect to an optical axis in a state in which the holding member is held by the holding portion, and then fixing the light emitting element to the housing.Type: GrantFiled: January 13, 2012Date of Patent: December 16, 2014Assignee: Ricoh Company, Ltd.Inventors: Shuji Takamatsu, Atsumi Komatsuda
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Publication number: 20140146332Abstract: An optical scanner, which is included in an image forming apparatus, includes a light source including a recessed portion provided on an outer circumference thereof, and a housing configured to support the light source. The housing includes a positioning unit configured to position the light source in a vertical optical axis of the light source, and a cutout provided on an inner circumference of the positioning unit. The light source is positioned to the positioning unit with the recessed portion being disposed at the cutout and then is fixed to the housing. The image forming apparatus includes an image carrier configured to form an image on a surface thereof, and the above-described optical scanner.Type: ApplicationFiled: November 4, 2013Publication date: May 29, 2014Applicant: RICOH COMPANY, LTD.Inventors: Kazunori WATANABE, Keiichi SERIZAWA, Hiroshi JOHNO, Shuji TAKAMATSU
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Publication number: 20130063798Abstract: A method of assembling a light source comprises the steps of inserting multiple lead wires of a light emitting element into an insertion hole formed in a circuit board from one side of the circuit board at once, striking tips of the multiple lead wires with corresponding multiple guides formed on a circumference of a pressing device serving as a jig from the other side of the circuit board, moving the pressing device toward the one side from the other side of the circuit board, and in a first stage guiding the multiple lead wires to corresponding terminals formed in an inner wall of the insertion hole of the circuit board, respectively.Type: ApplicationFiled: September 6, 2012Publication date: March 14, 2013Applicant: RICOH COMPANY, LTD.Inventor: Shuji TAKAMATSU
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Publication number: 20120182735Abstract: A light emitting element adjusting and fixing structure includes a light emitting element having a plurality of light emitting points is fixed to a housing with a holding member. The housing includes a mounting hole having a reference plane to which the light emitting element is mounted, and a holding portion for holding the holding member such that the light emitting element can be rotated in contact with the reference plane. A distance between the adjacent light emitting points in a projection plane of the light emitting points can be adjusted by rotationally adjusting the light emitting element with respect to an optical axis in a state in which the holding member is held by the holding portion, and then fixing the light emitting element to the housing.Type: ApplicationFiled: January 13, 2012Publication date: July 19, 2012Inventors: Shuji TAKAMATSU, Atsumi KOMATSUDA
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Publication number: 20110194977Abstract: A liquid container for analysis is provided to prevent outside liquid leakage from occurring when a needle is inserted into a seal part of a liquid container for analysis. The liquid container for analysis may contain a liquid for analysis and may include: a container main body formed having an opening part that enables the liquid for analysis to be led out; a seal part that seals the opening part; and a guide part that is provided outside the seal part, serving as a guide for inserting a liquid lead-out needle into the seal part, and upon insertion of the liquid lead-out needle into the seal part, coming into substantially liquid-tight contact with an outer circumferential surface of the liquid lead-out needle.Type: ApplicationFiled: February 7, 2011Publication date: August 11, 2011Applicant: HORIBA, LTD.Inventors: Kazuhiro Miyamura, Katsutoshi Ishizuka, Kazutaka Okamoto, Shuji Takamatsu, Hiromi Ohkawa
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Publication number: 20110158854Abstract: This invention is to obtain a highly reliable measurement result by correcting a hydrogen concentration by the use of a concentration of oxygen contained in a measurement gas, and the hydrogen concentration measuring instrument comprises a hydrogen concentration measuring part 2 that measures the concentration of hydrogen contained in the measurement gas flowing in a flow channel, an oxygen concentration measuring unit 3 that measures a concentration of oxygen contained in the measurement gas, and a concentration correcting unit 73 that corrects the concentration of hydrogen obtained by the hydrogen concentration measuring part 2 by the use of the concentration of oxygen obtained by the oxygen concentration measuring unit 3.Type: ApplicationFiled: December 20, 2010Publication date: June 30, 2011Applicant: HORIBA, LTD.Inventors: Yutaka YAMAGISHI, Shigeru OKUDA, Shuji TAKAMATSU, Kazutaka OKAMOTO, Yoshiaki NAKATA
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Publication number: 20100221148Abstract: The present invention provides a combustible gas sensor that can realize a considerable improvement in the measurement sensitivity and the measurement precision by increasing the contact area between the measurement object gas and the oxidation catalyst particles, increasing the amount of heat generation of oxidation reaction in accordance therewith, and improving the transference of the oxidation reaction heat, while reducing the scale of the whole.Type: ApplicationFiled: March 19, 2008Publication date: September 2, 2010Applicant: HORIBA, LTD.Inventors: Tsutomu Oie, Kazutaka Okamoto, Yoshiaki Nakata, Yutaka Yamagishi, Shuji Takamatsu
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Patent number: 6053035Abstract: A method for evaluating material is carried out by making current measurements in an electrolyte positioned between a sensor and a material to be evaluated. The sensor has a substrate and a sensor surface. A light source is disposed in a spaced relationship with the substrate of the sensor. An electrolyte such as a gas or a solution is positioned to contact the sensor surface, and a material to be evaluated is positioned to contact the electrolyte, such that the electrolyte is positioned between the sensor and the material to be evaluated. A change in a property of the electrolyte, for example, pH, is caused by irradiating the sensor with the light beam. By generating a current in the substrate and then measuring the current, the pH of the electrolyte may be determined.Type: GrantFiled: May 1, 1998Date of Patent: April 25, 2000Inventors: Satoshi Nomura, Shuji Takamatsu, Motoi Nakao