Patents by Inventor Motoki Yaginuma
Motoki Yaginuma 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: 20150240346Abstract: An in-line coating device includes: a coating section configured to perform coating on a workpiece; and a transport section configured to transport a plurality of the workpieces in the coating section. The coating section is provided with a plurality of coating materials which are aligned. The transport section transports the workpieces such that the workpieces face the plurality of coating materials. The in-line coating device includes a voltage applying section configured to, when the workpiece is transported and faces each coating material, apply to the workpiece, a bias voltage to attract particles emitted from the coating material toward the workpiece. The bias voltages applied to the workpiece by the voltage applying section when the workpiece faces one of the coating materials can be different from that applied when the workpiece faces another one of the coating material.Type: ApplicationFiled: September 30, 2013Publication date: August 27, 2015Inventors: Keisuke Yamamoto, Satoru Moriya, Toshihide Asano, Tsuyoshi Sugimoto, Motoki Yaginuma, Yasuhiro Numao
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Publication number: 20150072264Abstract: A fuel cell includes: a membrane electrode assembly including an electrolyte membrane, catalyst layers stacked on both sides of the electrolyte membrane, and two or more porous bodies having different moduli of elasticity and provided on a surface of one of the catalyst layers; a separator defining a gas flow passage between the separator and the membrane electrode assembly; and a frame body surrounding an outer periphery of the electrolyte membrane. A porous body adjacent to the separator out of the two or more porous bodies includes an outer edge portion including an outer extending portion extending to overlap with the frame body. An elastic body is provided between the outer extending portion and the frame body.Type: ApplicationFiled: March 14, 2013Publication date: March 12, 2015Applicant: NISSAN MOTOR CO., LTD.Inventors: Motoki Yaginuma, Toshikazu Kotaka
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Patent number: 8974983Abstract: An electrical conductive member includes: an electrical conductive structure including: a substrate; an electrical conductive carbon layer provided on at least one surface of the substrate and containing electrical conductive carbon; and a middle layer interposed between the substrate and the electrical conductive carbon layer. An intensity ratio R (ID/IG) of a D-band peak intensity (ID) to a G-band peak intensity (IG) measured by a Raman scattering spectroscopic analysis in the electrical conductive carbon layer is between 1.4 and 1.9.Type: GrantFiled: October 20, 2009Date of Patent: March 10, 2015Assignee: Nissan Motor Co., Ltd.Inventors: Tomokatsu Himeno, Atsushi Miyazawa, Motoki Yaginuma, Keisuke Yamamoto, Keiji Okada, Tsutomu Yamazaki, Yasuhiro Numao, Toshihiko Tsuda
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Publication number: 20150037706Abstract: A single fuel cell, a plurality of which are to be stacked to form a fuel cell stack, includes a membrane electrode assembly having a structure including paired electrode layers and an electrolyte membrane held between the paired electrode layers, paired separators each forming a gas passage between the separator and the membrane electrode assembly, and a displacement absorber having a conductive property and interposed between one separator of the single fuel cell and an adjacent-side separator of another single fuel cell to be stacked adjacent to the single fuel cell. The displacement absorber is connected to at least any one of the separators.Type: ApplicationFiled: March 12, 2013Publication date: February 5, 2015Applicant: NISSAN MOTOR CO., LTD.Inventors: Yosuke Fukuyama, Keita Iritsuki, Motoki Yaginuma, Takeshi Shiomi, Hiroshi Miyaoka, Kenji Kanamori, Kazuyuki Sato
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Publication number: 20150030955Abstract: A fuel cell includes a membrane electrode assembly, a frame arranged on an outer periphery portion of the membrane electrode assembly, and a separator defining a gas flow channel between the separator and the membrane electrode assembly and between the separator and the frame. A diffuser portion which is a part of the gas flow channel, is formed between the separator and the frame. An electrode layer includes a metal porous body which is an electrode surface layer and has gas permeability. The metal porous body has at an end portion thereof, an extension part covering a region corresponding to the diffuser portion of the frame.Type: ApplicationFiled: March 15, 2013Publication date: January 29, 2015Applicant: NISSAN MOTOR CO., LTD.Inventors: Motoki Yaginuma, Toshikazu Kotaka
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Publication number: 20140335436Abstract: A fuel cell has a membrane electrode assembly including an electrolyte membrane, catalyst layers disposed on both sides of the electrolyte membrane, and three or more layers of porous bodies disposed on a front surface side of the catalyst layer, a frame body surrounding an outer periphery of the electrolyte membrane, and a separator that partitions and forms a gas passage between the membrane electrode assembly and the separator. Extended portions are provided at an outer edge of a first porous body adjacent to the separator among the three layers of the porous bodies, and at an outer edge of a second porous body adjacent to the first porous body, respectively, so as to extend to be superimposed over the frame body. The extended portions of the first and second porous bodies intervene between the frame body and the separator.Type: ApplicationFiled: January 21, 2013Publication date: November 13, 2014Applicant: Nissan Motor Co., LtdInventors: Toshikazu Kotaka, Motoki Yaginuma
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Publication number: 20130209917Abstract: An electrical conductive member (20) includes a metal substrate (21), an intermediate layer (23) formed on the metal substrate (21), and an electrical conductive layer (25) formed on the intermediate layer (23). The intermediate layer (23) contains a constituent of the metal substrate (21), a constituent of the electrical conductive layer (25), and a crystallization inhibiting component that inhibits crystallization in the intermediate layer (23). According to this configuration, the electrical conductive member having excellent electrical conductivity and resistance to corrosion can be obtained.Type: ApplicationFiled: July 14, 2011Publication date: August 15, 2013Inventors: Tomokatsu Himeno, Keisuke Yamamoto, Atsushi Miyazawa, Motoki Yaginuma
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Patent number: 8263289Abstract: A cell of a fuel cell includes a membrane electrode assembly, and metal first and second separators which sandwich the membrane electrode assembly to form gas flow paths disposed on each side of the membrane electrode assembly. A back surface of the first separator and a back surface of the second separator, the first separator and the second separator being included in adjacent cells, are in contact with each other, thereby forming a temperature-control medium flow path between the first separator and the second separator. In the first separator and the second separator, corrosion-resistant coating layers are provided only on reaction-side surfaces of the first separator and the second separator, the reaction-side surfaces facing the membrane electrode assembly, and portions where the back surface of the first separator is in contact with the back surface of the second separator are joined by welded portions.Type: GrantFiled: May 15, 2007Date of Patent: September 11, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Atsushi Miyazawa, Motoki Yaginuma, Motoharu Obika, Koshi Takata, Nobuo Kino, Yosuke Fukuyama
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Patent number: 8173320Abstract: A fuel cell stack includes a membrane electrode assembly including an electrolyte membrane and electrode catalyst layers sandwiching the electrolyte membrane; metal separators that define gas channels, the metal separators being respectively disposed at both surfaces of the membrane electrode assembly; a current collector from which electromotive force is derived, the current collector being in contact with at least one of the metal separators; and joining parts that join the metal separator to the current collector at portions where the metal separator contacts the current collector.Type: GrantFiled: May 15, 2007Date of Patent: May 8, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Koshi Takata, Takahito Osada, Atsushi Miyazawa, Motoharu Obika, Motoki Yaginuma
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Publication number: 20110287336Abstract: An electrical conductive member includes: an electrical conductive structure including: a substrate (31, 152, 252, 352, 452); an electrical conductive carbon layer (33, 155, 254, 354, 454) provided on at least one surface of the substrate and containing electrical conductive carbon; and a middle layer (32, 154, 256, 356, 456) interposed between the substrate and the electrical conductive carbon layer. An intensity ratio R (ID/IG) of a D-band peak intensity (ID) to a G-band peak intensity (IG) measured by a Raman scattering spectroscopic analysis in the electrical conductive carbon layer is 1.3 or more.Type: ApplicationFiled: October 20, 2009Publication date: November 24, 2011Applicant: NISSAN MOTOR CO., LTD.Inventors: Tomokatsu Himeno, Atsushi Miyazawa, Motoki Yaginuma, Keisuke Yamamoto, Keiji Oakada, Tsutomu Yamazaki, Yasuhiro Numao, Toshihiko Tsuda
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Publication number: 20090092872Abstract: A cell of a fuel cell includes a membrane electrode assembly, and metal first and second separators which sandwich the membrane electrode assembly to form gas flow paths disposed on each side of the membrane electrode assembly. A back surface of the first separator and a back surface of the second separator, the first separator and the second separator being included in adjacent cells, are in contact with each other, thereby forming a temperature-control medium flow path between the first separator and the second separator. In the first separator and the second separator, corrosion-resistant coating layers are provided only on reaction-side surfaces of the first separator and the second separator, the reaction-side surfaces facing the membrane electrode assembly, and portions where the back surface of the first separator is in contact with the back surface of the second separator are joined by welded portions.Type: ApplicationFiled: May 15, 2007Publication date: April 9, 2009Applicant: NISSAN MOTOR CO., LTDInventors: Atsushi Miyazawa, Motoki Yaginuma, Motoharu Obika, Koshi Takata, Nobuo Kino, Yosuke Fukuyama
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Publication number: 20090053571Abstract: A fuel cell stack includes a membrane electrode assembly including an electrolyte membrane and electrode catalyst layers sandwiching the electrolyte membrane; metal separators that define gas channels, the metal separators being respectively disposed at both surfaces of the membrane electrode assembly; a current collector from which electromotive force is derived, the current collector being in contact with at least one of the metal separators; and joining parts that join the metal separator to the current collector at portions where the metal separator contacts the current collector.Type: ApplicationFiled: May 15, 2007Publication date: February 26, 2009Applicant: NISSAN MOTOR CO., LTD.Inventors: Koshi Takata, Takahito Osada, Atsushi Miyazawa, Motoharu Obika, Motoki Yaginuma