Patents by Inventor Yuji Gotoh
Yuji Gotoh 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: 10484572Abstract: There is provided an image reading apparatus including a first reading sensor provided in a first reading unit and configured to read one surface of the sheet, a second reading sensor provided in a second reading unit provided to face the first reading sensor and configured to read an image on the other surface of the sheet, a first background portion serving as a reading background of the first reading sensor, a second background portion serving as a reading background of the second reading sensor, and a moving portion configured to integrally move the first reading sensor and the second background portion, wherein the first reading unit includes a sensor case in which the first reading sensor is provided, and the sensor case is fixed to the apparatus main body.Type: GrantFiled: May 14, 2018Date of Patent: November 19, 2019Assignee: Canon Denshi Kabushiki KaishaInventors: Yuji Gotoh, Hiroshi Komuro, Tatsuya Nishi, Yoshihiro Taniike
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Patent number: 10458775Abstract: An apparatus is provided to measure a depth of a hardened layer formed at a surface layer of a quenched workpiece. The apparatus includes an exciting coil configured to generate a magnetic flux to magnetize the workpiece and a detecting coil configured to detect the magnetic flux generated by the exciting coil. The exciting coil has a U-shaped excitation core portion and an excitation coil portion wound on the excitation core portion. The excitation core portion is arranged such that distal ends of magnetic poles of the excitation core portion face the workpiece. The detecting coil has a detection core portion and a detection coil wound on the detection core portion. The detection core portion is arranged between the magnetic poles of the excitation core portion and along a surface of the workpiece.Type: GrantFiled: March 2, 2016Date of Patent: October 29, 2019Assignees: NETUREN CO., LTD., OITA UNIVERSITYInventors: Yoshitaka Misaka, Kazuhiro Kawasaki, Kenta Sakurai, Yuji Gotoh
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Publication number: 20180262646Abstract: There is provided an image reading apparatus including a first reading sensor provided in a first reading unit and configured to read one surface of the sheet, a second reading sensor provided in a second reading unit provided to face the first reading sensor and configured to read an image on the other surface of the sheet, a first background portion serving as a reading background of the first reading sensor, a second background portion serving as a reading background of the second reading sensor, and a moving portion configured to integrally move the first reading sensor and the second background portion, wherein the first reading unit includes a sensor case in which the first reading sensor is provided, and the sensor case is fixed to the apparatus main body.Type: ApplicationFiled: May 14, 2018Publication date: September 13, 2018Inventors: Yuji Gotoh, Hiroshi Komuro, Tatsuya Nishi, Yoshihiro Taniike
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Publication number: 20180051975Abstract: An apparatus is provided to measure a depth of a hardened layer formed at a surface layer of a quenched workpiece. The apparatus includes an exciting coil configured to generate a magnetic flux to magnetize the workpiece and a detecting coil configured to detect the magnetic flux generated by the exciting coil. The exciting coil has a U-shaped excitation core portion and an excitation coil portion wound on the excitation core portion. The excitation core portion is arranged such that distal ends of magnetic poles of the excitation core portion face the workpiece. The detecting coil has a detection core portion and a detection coil wound on the detection core portion. The detection core portion is arranged between the magnetic poles of the excitation core portion and along a surface of the workpiece.Type: ApplicationFiled: March 2, 2016Publication date: February 22, 2018Applicants: NETUREN CO., LTD., OITA UNIVERSITYInventors: Yoshitaka MISAKA, Kazuhiro KAWASAKI, Kenta SAKURAI, Yuji GOTOH
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Patent number: 9304108Abstract: A quenching depth measuring method is used for measuring the quenching depth in a workpiece and includes the steps of: magnetizing the workpiece by disposing, in the vicinity of the workpiece, a magnetizer equipped with an exciting coil; detecting, through a detection coil, an induced magnetic field generated by the magnetization; measuring the induced magnetic field as the output voltage of the detection coil; and specifying the thickness of the quenched hardened layer of the workpiece on the basis of known electromagnetic characteristic information of an unquenched material and a fully-quenched material and an output voltage value measured by the detection coil, the unquenched material being made of the same material as the constituent material of the workpiece and being a material on which a quenching process is not performed, the fully-quenched material being a material on which the quenching process is performed.Type: GrantFiled: October 26, 2011Date of Patent: April 5, 2016Assignees: NETUREN CO., LTD., NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITYInventors: Yuji Gotoh, Noriyoshi Takaoka, Kazuhiro Kawasaki, Yoshitaka Misaka
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Publication number: 20130300405Abstract: A quenching depth measuring method is used for measuring the quenching depth in a workpiece and includes the steps of: magnetizing the workpiece by disposing, in the vicinity of the workpiece, a magnetizer equipped with an exciting coil; detecting, through a detection coil, an induced magnetic field generated by the magnetization; measuring the induced magnetic field as the output voltage of the detection coil; and specifying the thickness of the quenched hardened layer of the workpiece on the basis of known electromagnetic characteristic information of an unquenched material and a fully-quenched material and an output voltage value measured by the detection coil, the unquenched material being made of the same material as the constituent material of the workpiece and being a material on which a quenching process is not performed, the fully-quenched material being a material on which the quenching process is performed.Type: ApplicationFiled: October 26, 2011Publication date: November 14, 2013Applicant: NETUREN CO., LTD.Inventors: Yuji Gotoh, Noriyoshi Takaoka, Kazuhiro Kawasaki, Yoshitaka Misaka
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Patent number: 6543860Abstract: A hydraulic pressure brake device includes a master cylinder, a brake operating member, a master piston, a booster, a first auxiliary piston, a pressure transmitting chamber, a valve device, and a second auxiliary piston. The hydraulic pressure brake device further includes an output member and a rod. The output member is provided in the booster for transmitting the boosting power generated by the booster to the first auxiliary piston when the movement of the master piston is assisted by the booster. The rod is provided in the second auxiliary piston for transmitting the operating force applied to the brake operating member to the valve device and for opening the valve device when the movement of the master piston is not assisted by the booster.Type: GrantFiled: November 20, 2001Date of Patent: April 8, 2003Assignee: Aisin Seiki Kabushiki KaishaInventor: Yuji Gotoh
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Publication number: 20020060110Abstract: A hydraulic pressure brake device includes a master cylinder, a brake operating member, a master piston, a booster, a first auxiliary piston, a pressure transmitting chamber, a valve device, and a second auxiliary piston. The hydraulic pressure brake device further includes an output member and a rod. The output member is provided in the booster for transmitting the boosting power generated by the booster to the first auxiliary piston when the movement of the master piston is assisted by the booster. The rod is provided in the second auxiliary piston for transmitting the operating force applied to the brake operating member to the valve device and for opening the valve device when the movement of the master piston is not assisted by the booster.Type: ApplicationFiled: November 20, 2001Publication date: May 23, 2002Inventor: Yuji Gotoh
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Patent number: 5977259Abstract: A thermoplastic elastomer composition containing 100 wt. parts, in total, of an ethylene-.alpha.-olefin copolymer rubber and a polyolefin resin, and 0.1 to 150 wt. parts of at least one hydrogenated diene polymer having a hydrogenation degree of at least 70% selected from the group consisting of hydrogenated conjugated diene polymers and hydrogenated products of random copolymers comprising conjugated dienes and aromatic vinyl compounds in which the content of the aromatic vinyl compound units is 25 wt. % or less, in which the composition has a complex dynamic viscosity .eta.*(1) of 1.5.times.10.sup.5 poise or less, and a Newtonian viscosity index n of 0.67 or less. This composition provides molded articles which are not whitened on bending, and has good flexibility.Type: GrantFiled: December 22, 1997Date of Patent: November 2, 1999Assignee: Sumitomo Chemical Company, Ltd.Inventors: Hiroyuki Sugimoto, Yoshihiro Nakatsuji, Satoru Moritomi, Shinichiro Nagai, Yuji Gotoh
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Patent number: 5913999Abstract: A process for producing an extrusion laminated film or sheet comprising a plastic substrate and a resin for extrusion laminating selected from the group consisting of polyethylene resins, polypropylene resins, ethylene-vinylester copolymer resins and ethylene-(metha)acrylate copolymer resins, comprising (A) a surface oxidizing step, (B) an ozone-treating step and (C) a pressurized laminating step as specified using no chemical primer.Type: GrantFiled: January 13, 1997Date of Patent: June 22, 1999Assignee: Sumitomo Chemical Company, LimitedInventors: Haruo Hayashida, Fumio Ishibashi, Kohji Kubo, Hiroaki Takahata, Yuji Gotoh
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Patent number: 5298211Abstract: Provided is a method for producing a thermoplastic elastomer composition excellent in flexibility, mechanical properties and extrusion moldability which comprises directly feeding a particulate olefinic copolymer rubber (A) having a particle shape index .alpha. defined below of 0.1-0.9 and an olefinic plastic (B) to a continuous kneading extruder to carry out melt kneading and then, feeding an organic peroxide to downstream side of said extruder to carry out dynamic crosslinking:.alpha.=D.sub.A /D.sub.Bwherein D.sub.A denotes bulk density of the particulate olefinic copolymer rubber (A) and D.sub.B denotes bulk density of the olefinic plastic (B).Type: GrantFiled: December 3, 1992Date of Patent: March 29, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Tatsuo Hamanaka, Noboru Komine, Tadashi Hikasa, Yuji Gotoh, Keitaro Kojima
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Patent number: 4981760Abstract: An ethylene-.alpha.-olefin copolymer comprising ethylene and an .alpha.-olefin having from 3 to 10 carbon atoms, the copolymer having an .alpha.-olefin content of from 1.0 to 8.0 mol %, a density of from 0.900 to 0.930 g/cm.sup.3, and a melt flow rate of from 0.1 to 100 g/10 min., the programed-temperature thermogram of said copolymer as determined with a differential scanning calorimeter after being completely melted and then gradually cooled showing an endothermic peak (a) in a range of from 75.degree. to 100.degree. C. and an endothermic peak (b) in a range of from 120.degree. to 140.degree. C., with the ratio of an endotherm at the endothermic peak (b), .DELTA.Hb, to an endotherm at the endothermic peak (a), .DELTA.Ha, i.e., .DELTA.Hb/.DELTA.Ha, being from 0.03 to 2.0. The copolymer provides a film exhibiting excellent physical properties required for packaging film.Type: GrantFiled: July 11, 1989Date of Patent: January 1, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Yukio Naito, Kohzoh Miyazaki, Yuji Gotoh, Masashi Hamba, Akio Imai, Kiyoyuki Sugimori
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Patent number: 4726261Abstract: A hydraulic control system comprises a distributor valve including a valve body formed with a first port communicating with a pressure regulator and a second inlet port. The valve body is also formed with a plurality of outlet ports communicating with corresponding frictional elements, respectively. A solenoid operated relief valve is fluidly disposed between the pressure regulator and the second inlet port of the valve body. The distributor valve includes a rotary valve element operatively connected with a stepping motor. The rotary valve element is rotatably disposed within a bore of the valve body and has a plurality of angular positions for connecting the outlet ports to the first inlet port, second inlet port and drainage, selectively. The solenoid of the relief valve is of the proportioning type and is controlled by a control unit. The stepping motor is also controlled by the control unit.Type: GrantFiled: March 25, 1986Date of Patent: February 23, 1988Assignee: Nissan Motor Co., Ltd.Inventors: Yoshiaki Kato, Nobuteru Hitomi, Yuji Gotoh, Yoshikazu Tanaka, Noboru Hattori, Hisashi Kitahara