Patents by Inventor Nobuo Kino
Nobuo Kino 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: 8510933Abstract: Provided is a field pole magnet to be installed in a rotor or a stator of a permanent magnet rotary machine, the field pole magnet including: multiple magnet pieces (31 to 34) formed by breaking and dividing a single permanent magnet; and at least one magnet-piece holding member (40) configured to hold these magnet pieces (31 to 34).Type: GrantFiled: September 29, 2009Date of Patent: August 20, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Ryou Murakami, Hideki Nishimura, Nobuo Kino, Tomihito Hashimoto
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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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Publication number: 20120036696Abstract: Provided is a field pole magnet to be installed in a rotor or a stator of a permanent magnet rotary machine, the field pole magnet including: multiple magnet pieces (31 to 34) formed by breaking and dividing a single permanent magnet; and at least one magnet-piece holding member (40) configured to hold these magnet pieces (31 to 34).Type: ApplicationFiled: September 29, 2009Publication date: February 16, 2012Inventors: Ryou Murakami, Hideki Nishimura, Nobuo Kino, Tomihito Hashimoto
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Patent number: 8092951Abstract: A fuel cell stack and method of manufacturing a fuel cell stack having a highly anti-corrosive property. The fuel cell stack includes a plurality of cells constructed by interposing an electrolyte membrane electrode assembly between the first and second separators. The first and second separators define gas passages on from both sides of the electrolyte membrane electrode assembly, and a gas manifold is in fluid communication with the gas flow passages through the plurality of stacked cells. Manifold openings for defining the gas manifold are formed in the first and second separators, and the opening areas of the manifold openings are differently sized. The manifold opening inner peripheral end of the first separator has a larger opening area, and is welded to the second separator to form a manifold welding portion.Type: GrantFiled: May 15, 2007Date of Patent: January 10, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Motoharu Obika, Atsushi Miyazawa, Nobuo Kino
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Patent number: 7806793Abstract: A continuously variable belt drive transmission, including input and output pulleys each having axially opposed tapered surfaces, and an endless belt including a plurality of metal elements each having opposed side faces contacted with the respective tapered surfaces of the input and output pulleys. Each of the opposed side faces is formed with a plurality of microscopic projections and recesses arranged along a radial direction of the input and output pulleys upon being in contact with the respective tapered surfaces of the input and output pulleys. The tapered surfaces of at least the input pulley are formed with microgrooves that are radially spaced from one another and have a pitch not more than a width of each of the microscopic projections on the side faces of the metal element.Type: GrantFiled: March 23, 2005Date of Patent: October 5, 2010Assignee: Jatco LtdInventors: Makoto Yoshida, Yoshiaki Katou, Yasuo Ito, Nobuo Kino
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Publication number: 20090117431Abstract: A fuel cell stack and method of manufacturing a fuel cell stack having a highly anti-corrosive property. The fuel cell stack includes a plurality of cells constructed by interposing an electrolyte membrane electrode assembly between the first and second separators. The first and second separators define gas passages on from both sides of the electrolyte membrane electrode assembly, and a gas manifold is in fluid communication with the gas flow passages through the plurality of stacked cells. Manifold openings for defining the gas manifold are formed in the first and second separators, and the opening areas of the manifold openings are differently sized. The manifold opening inner peripheral end of the first separator has a larger opening area, and is welded to the second separator to form a manifold welding portion.Type: ApplicationFiled: May 15, 2007Publication date: May 7, 2009Applicant: NISSAN MOTOR CO., LTD.Inventors: Motoharu Obika, Atsushi Miyazawa, Nobuo Kino
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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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Patent number: 7070335Abstract: A rolling bearing used in a system including an automotive power train and a peripheral auxiliary equipment of the power train, and in a compressor. The rolling bearing comprises a first race and a second race. A rolling element is rotatably disposed between the first and second races. A film whose main component is a metal selected from the group consisting of nickel and copper has a thickness ranging from 0.1 to 15 ?m. The film is formed on a surface of at least one of the first race, the second race and the rolling element.Type: GrantFiled: November 15, 2002Date of Patent: July 4, 2006Assignee: Nissan Motor Co., Ltd.Inventors: Eiji Hirai, Mitsuhiro Okuhata, Nobuo Kino, Keizo Otani, Tomofumi Furukawa
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Patent number: 6962441Abstract: A rotary member such as a member of a bearing, a rotating member of a transmission or a gear for a motor vehicle, includes a base region of a ferrous base material such as a steel. The rotary member is formed with a hydrogen blocking layer formed in a contact surface for contacting with a mating body in a relative motion. The hydrogen blocking layer includes a concentrated portion formed in the base region and made of a substance lower in hydrogen diffusion coefficient than the base material.Type: GrantFiled: November 15, 2002Date of Patent: November 8, 2005Assignee: Nissan Motor Co., Ltd.Inventors: Eiji Hirai, Mitsuhiro Okuhata, Nobuo Kino, Keizo Otani
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Publication number: 20050221938Abstract: A continuously variable belt drive transmission, including input and output pulleys each having axially opposed tapered surfaces, and an endless belt including a plurality of metal elements each having opposed side faces contacted with the respective tapered surfaces of the input and output pulleys. Each of the opposed side faces is formed with a plurality of microscopic projections and recesses arranged along a radial direction of the input and output pulleys upon being in contact with the respective tapered surfaces of the input and output pulleys. The tapered surfaces of at least the input pulley are formed with microgrooves that are radially spaced from one another and have a pitch not more than a width of each of the microscopic projections on the side faces of the metal element.Type: ApplicationFiled: March 23, 2005Publication date: October 6, 2005Inventors: Makoto Yoshida, Yoshiaki Katou, Yasuo Ito, Nobuo Kino
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Publication number: 20050045248Abstract: A contact pressure-resistant member including a rolling contact portion having a carbon concentration ranging from 0.8 to 1.2%. The contact pressure-resistant member is made of a steel material containing 0.15 to 0.40% by mass of C, 0.50 to 1.50% by mass of Si, 0.20 to 1.50% by mass of Mn, 0.50 to 1.50% by mass of Cr, and 0.05 to 0.50% by mass of Mo, 0.010% by mass or less of P, at least one element selected from the group consisting of 0.50 to 3.50% by mass of Ni, 0.03 to 0.20% by mass of Ti, 0.03 to 0.15% by mass of Nb and 0.01 to 0.10% by mass of Al, and the balance of Fe and inevitable impurities.Type: ApplicationFiled: August 19, 2004Publication date: March 3, 2005Inventors: Keizo Otani, Nobuo Kino, Noriko Uchiyama, Takuro Yamaguchi, Toshimitsu Kimura
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Patent number: 6858096Abstract: A rolling element for a continuously variable transmission, including a plurality of rolling members having rolling contact portions that come into rolling contact with each other via lubricating oil. At least one of the rolling contact portions includes an outer surface layer having a surface microhardness of not less than Hv 750, a surface residual compressive stress of not less than 1000 MPa and a residual austenite content of not more than 10% by volume.Type: GrantFiled: November 30, 2001Date of Patent: February 22, 2005Assignee: Nissan Motor Co., Ltd.Inventors: Nobuo Kino, Noriko Uchiyama, Takuro Yamaguchi, Keizo Otani
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Patent number: 6814685Abstract: A rolling element for a continuously variable transmission, including input and output disks and a power roller interposed between the input and output disks, the power roller including an inner race, an outer race and a plurality of rolling members interposed between the inner and outer races, the input and output disks and the inner race having rolling contact surfaces coming into rolling contact with each other via lubricating oil, the inner and outer races having rolling contact surfaces coming into rolling contact with the rolling members via lubricating oil, and a nickel-based coat formed on at least one of the rolling contact surfaces, the nickel-based coat having a thickness ranging from 0.1 to 20 &mgr;m.Type: GrantFiled: September 28, 2001Date of Patent: November 9, 2004Assignee: Nissan Motor Co., Ltd.Inventors: Eiji Hirai, Mitsuhiro Okuhata, Nobuo Kino, Keizo Otani
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Publication number: 20030169955Abstract: A rotary member such as a member of a bearing, a rotating member of a transmission or a gear for a motor vehicle, includes a base region of a ferrous base material such as a steel. The rotary member is formed with a hydrogen blocking layer formed in a contact surface for contacting with a mating body in a relative motion. The hydrogen blocking layer includes a concentrated portion formed in the base region and made of a substance lower in hydrogen diffusion coefficient than the base material.Type: ApplicationFiled: November 15, 2002Publication date: September 11, 2003Applicant: NISSAN MOTOR CO., LTD.Inventors: Eiji Hirai, Mitsuhiro Okuhata, Nobuo Kino, Keizo Otani
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Publication number: 20030165279Abstract: A rolling bearing used in a system including an automotive power train and a peripheral auxiliary equipment of the power train, and in a compressor. The rolling bearing comprises a first race and a second race. A rolling element is rotatably disposed between the first and second races. A film whose main component is a metal selected from the group consisting of nickel and copper has a thickness ranging from 0.1 to 15 &mgr;m. The film is formed on a surface of at least one of the first race, the second race and the rolling element.Type: ApplicationFiled: November 15, 2002Publication date: September 4, 2003Applicant: NISSAN MOTOR CO., LTD.Inventors: Eiji Hirai, Mitsuhiro Okuhata, Nobuo Kino, Keizo Otani, Tomofumi Furukawa
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Patent number: 6569267Abstract: A high bearing pressure-resistant member used as a rolling element forming part of a toroidal continuously variable transmission for an automotive vehicle. The high bearing pressure-resistant member is formed of a mechanical structural steel containing Cr. The mechanical structural steel includes a matrix having at least one of martensite structure and bainite structure. The matrix contains carbide having a mean particle size of 3 &mgr;m or less, dispersed and precipitated in form of at least one of generally spheres and pseudo-spheres.Type: GrantFiled: July 20, 2000Date of Patent: May 27, 2003Assignee: Nissan Motor Co., Ltd.Inventors: Tsuyoshi Nakamura, Sadayuki Nakamura, Toshimitsu Kimura, Takurou Yamaguchi, Keizo Otani, Noriko Uchiyama, Nobuo Kino, Toshikazu Nanbu
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Patent number: 6565477Abstract: A power roller assembly for a toroidal-type CVT, including a pair of races formed with bearing surfaces opposed to each other, a plurality of rolling elements rotatably disposed between the races in contact with the bearing surfaces, and an iron phosphate-based coat formed on at least one of bearing surfaces.Type: GrantFiled: February 5, 2001Date of Patent: May 20, 2003Assignee: Nissan Motor Co., Ltd.Inventors: Masayuki Yoshida, Masaaki Fujii, Nobuo Kino, Keizo Otani
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Publication number: 20020119858Abstract: A rolling element for a continuously variable transmission, including a plurality of rolling members having rolling contact portions that come into rolling contact with each other via lubricating oil. At least one of the rolling contact portions includes an outer surface layer having a surface microhardness of not less than Hv 750, a surface residual compressive stress of not less than 1000 MPa and a residual austenite content of not more than 10% by volume.Type: ApplicationFiled: November 30, 2001Publication date: August 29, 2002Applicant: NISSAN MOTOR CO., LTD.Inventors: Nobuo Kino, Noriko Uchiyama, Takuro Yamaguchi, Keizo Otani
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Publication number: 20020068659Abstract: A rolling element for a continuously variable transmission, including input and output disks and a power roller interposed between the input and output disks, the power roller including an inner race, an outer race and a plurality of rolling members interposed between the inner and outer races, the input and output disks and the inner race having rolling contact surfaces coming into rolling contact with each other via lubricating oil, the inner and outer races having rolling contact surfaces coming into rolling contact with the rolling members via lubricating oil, and a nickel-based coat formed on at least one of the rolling contact surfaces, the nickel-based coat having a thickness ranging from 0.1 to 20 &mgr;m.Type: ApplicationFiled: September 28, 2001Publication date: June 6, 2002Applicant: NISSAN MOTOR CO., LTD.Inventors: Eiji Hirai, Mitsuhiro Okuhata, Nobuo Kino, Keizo Otani
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Patent number: 6282789Abstract: A method of manufacturing a traction roller for a continuously variable transmission comprises placing a layer on a hollow cylindrical material having the volume substantially equal to the traction roller, performing axial pressure forging of the cylindrical material to obtain a work having the axial length substantially equal to that of the traction roller, performing axial die forging of the work to form side wall and outer peripheral surface of the traction roller, and grinding the work subjected to die forging to obtain a finished product of the traction roller.Type: GrantFiled: August 4, 1999Date of Patent: September 4, 2001Assignee: Nissan Motor Co., Ltd.Inventors: Nobuo Kino, Shinji Fushimi, Toshifumi Hibi