Patents by Inventor Yoshihisa Tamura

Yoshihisa Tamura 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).

  • Patent number: 8999517
    Abstract: A steel pipe has a multi-layer coating including: a plating film formed on the surface of the steel pipe; a chemical conversion coating covering the plating film; a primer coating covering the chemical conversion coating and formed from a curable epoxy resin composition composed mainly of an epoxy compound and having an amide or imide bond introduced; and a polyamide resin coating covering the primer coating. The multi-layer coating can significantly enhance the adhesion force of the polyamide coating compared to the conventional pipe.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: April 7, 2015
    Assignee: Sanoh Kogyo Kabushiki Kaisha
    Inventors: Yoshihisa Tamura, Naoki Kawai
  • Patent number: 8658228
    Abstract: A tubular fuel cell module comprising a tubular fuel cell capable of improving current collection efficiency, and a fuel cell comprising the fuel cell module are provided. A fuel cell module (100) includes a plurality of tubular fuel cells (10A, 10A, . . . ) arranged in parallel and a first current collector (35), wherein the tubular fuel cells (10A, 10A, . . . ) are woven by the first current collector (35) in a direction crossing an axial direction of the tubular fuel cells (10A, 10A, . . . ) in a plan view.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: February 25, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
  • Patent number: 8455148
    Abstract: The present invention provides a fuel cell which is capable to improve heat exchange efficiency with a plurality of tubular cells. The fuel cell of the present invention comprises: a plurality of tubular cells; heat exchangers arranged at the outside of the tubular cells, wherein at least a part of the outer circumferential surface of said tubular cells and the peripheral surface of said heat exchangers have face contact with each other.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: June 4, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
  • Patent number: 8338056
    Abstract: A tubular fuel cell includes an inner current collector, a membrane-electrode assembly, and seal portions provided at the axial end portions of the membrane-electrode assembly, respectively. The membrane-electrode assembly includes an inner catalyst layer provided on the inner current collector, an electrolyte membrane provided on the inner catalyst layer, and an outer catalyst layer provided on the electrolyte membrane. The axial length of the outer catalyst layer is shorter than the axial lengths of the electrolyte membrane and the outer catalyst layer. The axial end face of the outer catalyst layer and the axial end face of the inner catalyst layer are located on the opposite sides of the seal portion in each side of the tubular fuel cell.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: December 25, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masahiro Imanishi, Haruyuki Nakanishi, Shigeaki Murata, Hirokazu Ishimaru, Yuichiro Hama, Yoshihisa Tamura
  • Patent number: 8283084
    Abstract: There is provided a hollow-shaped membrane electrode assembly for a fuel cell capable of improving power density per unit volume, wherein the hollow-shaped membrane electrode assembly for a fuel cell comprises a hollow solid electrolyte membrane, an outer electrode layer formed on the outer circumferential surface of the solid electrolyte membrane and an inner electrode layer formed on the inner circumferential surface of the solid electrolyte membrane, and wherein the hollow-shaped membrane electrode assembly for a fuel cell is formed in the shape of a spiral.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: October 9, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shigeaki Murata, Haruyuki Nakanishi, Masahiro Imanishi, Yoshihisa Tamura
  • Patent number: 7838064
    Abstract: A method for manufacturing a tube-type fuel cell by which a tube-type fuel cell with good adhesion can be produced without blocking a gas flow channel in its inner current collector. The method for manufacturing a tube-type fuel cell may include a filling step of providing a columnar-shaped inner current collector having a gas flow channel on its outer peripheral face and filling the gas flow channel with a removable substance to form a removable portion. Also a functional layer forming step of forming a functional layer on at least the removable portion and a removing step of removing the removable portion after the functional layer forming step may be used.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: November 23, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
  • Publication number: 20100247947
    Abstract: A steel pipe has a multi-layer coating including: a plating film formed on the surface of the steel pipe; a chemical conversion coating covering the plating film; a primer coating covering the chemical conversion coating and formed from a curable epoxy resin composition composed mainly of an epoxy compound and having an amide or imide bond introduced; and a polyamide resin coating covering the primer coating. The multi-layer coating can significantly enhance the adhesion force of the polyamide coating compared to the conventional pipe.
    Type: Application
    Filed: November 20, 2008
    Publication date: September 30, 2010
    Applicant: SANOH KOGYO KABUSHIKI KAISHA
    Inventors: Yoshihisa Tamura, Naoki Kawai
  • Patent number: 7754366
    Abstract: A tubular fuel cell module is provided with a tubular cell of a tubular fuel cell, and a heat transfer pipe through which a heating/cooling medium flows to selectively heat and cool the tubular fuel cell. The heat transfer pipe includes a first straight portion, a second straight portion, and a bent portion that connects the first straight portion with the second straight portion. At least a portion of the tubular cell is arranged on at least one of the first straight portion and the second straight portion. As a result, the reliability of a seal of the tubular fuel cell module is improved.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: July 13, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
  • Patent number: 7641996
    Abstract: A fuel cell capable of improving heat exchange efficiency with respect to tubular fuel cells is provided. A fuel cell includes a hollow electrolyte membrane, hollow electrodes arranged on an inside and an outside of the electrolyte membrane, respectively, and an internal charge collector arranged inside of the electrolyte membrane and the electrodes, wherein the internal charge collector is hollow and made of a nonporous member.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: January 5, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masahiro Imanishi, Haruyuki Nakanishi, Shigeaki Murata, Yoshihisa Tamura
  • Publication number: 20090286130
    Abstract: The present invention mainly intends to provide a water-repellent layer-forming tape, which enables a water-repellent layer to be provided by a simple method. In order to achieve the object, the present invention provides a water-repellent layer-forming tape to be used for forming a water-repellent layer of a tube-type fuel cell, comprising a plurality of fibrous shape-retaining materials and a water-repellent portion formed to connect the plurality of fibrous shape-retaining materials, wherein the water-repellent portion contains a water-repellent material and an electro-conductive material.
    Type: Application
    Filed: August 30, 2006
    Publication date: November 19, 2009
    Inventors: Masahiro Imanishi, Haruyuki Nakanishi, Shigeaki Murata, Yoshihisa Tamura
  • Publication number: 20090253009
    Abstract: The present invention provides a fuel cell which is capable to improve heat exchange efficiency with a plurality of tubular cells. The fuel cell of the present invention comprises: a plurality of tubular cells; heat exchangers arranged at the outside of the tubular cells, wherein at least a part of the outer circumferential surface of said tubular cells and the peripheral surface of said heat exchangers have face contact with each other.
    Type: Application
    Filed: August 31, 2006
    Publication date: October 8, 2009
    Inventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
  • Publication number: 20090162714
    Abstract: A tubular fuel cell module is provided with a tubular cell of a tubular fuel cell, and a heat transfer pipe through which a heating/cooling medium flows to selectively heat and cool the tubular fuel cell. The heat transfer pipe includes a first straight portion, a second straight portion, and a bent portion that connects the first straight portion with the second straight portion. At least a portion of the tubular cell is arranged on at least one of the first straight portion and the second straight portion. As a result, the reliability of a seal of the tubular fuel cell module is improved.
    Type: Application
    Filed: November 9, 2006
    Publication date: June 25, 2009
    Inventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
  • Publication number: 20090155659
    Abstract: A tubular fuel cell includes an inner current collector, a membrane-electrode assembly, and seal portions provided at the axial end portions of the membrane-electrode assembly, respectively. The membrane-electrode assembly includes an inner catalyst layer provided on the inner current collector, an electrolyte membrane provided on the inner catalyst layer, and an outer catalyst layer provided on the electrolyte membrane. The axial length of the outer catalyst layer is shorter than the axial lengths of the electrolyte membrane and the outer catalyst layer. The axial end face of the outer catalyst layer and the axial end face of the inner catalyst layer are located on the opposite sides of the seal portion in each side of the tubular fuel cell.
    Type: Application
    Filed: November 9, 2006
    Publication date: June 18, 2009
    Inventors: Masahiro Imanishi, Haruyuki Nakanishi, Shigeaki Murata, Hirokazu Ishimaru, Yuichiro Hama, Yoshihisa Tamura
  • Publication number: 20090148741
    Abstract: a fuel cell capable of improving heat exchange efficiency with respect to tubular fuel cells is provided. A fuel cell includes a hollow electrolyte membrane, hollow electrodes arranged on an inside and an outside of the electrolyte membrane, respectively, and an internal charge collector arranged inside of the electrolyte membrane and the electrodes, wherein the internal charge collector is hollow and made of a nonporous member.
    Type: Application
    Filed: August 31, 2006
    Publication date: June 11, 2009
    Inventors: Masahiro Imanishi, Haruyuki Nakanishi, Shigeaki Murata, Yoshihisa Tamura
  • Publication number: 20090136806
    Abstract: A tube shaped fuel cell module which includes a plurality of tube shaped fuel cell cells each of which has, in order from the inside, an internal collector, an inside catalyst electrode layer, a solid electrolyte membrane and an outside catalyst electrode layer; and an external collector which collects power from the tube shaped fuel cell cells, is such that the external collector has a corrugated plate structure in which convex portions and concave portions continuously alternate. The tube shaped fuel cell module is also provided with at least one cell-collector unit which includes the external collector, and the plurality of tube shaped fuel cell cells which contact the surface of the concave portions of the external collector along the entire lengths of the tube shaped fuel cell cells.
    Type: Application
    Filed: November 9, 2006
    Publication date: May 28, 2009
    Inventors: Masahiro Imanishi, Haruyukl Nakanishi, Shigeaki Murata, Yoshihisa Tamura
  • Publication number: 20090047422
    Abstract: The present invention mainly intends to provide a method for manufacturing a tube-type fuel cell by which a tube-type fuel cell with good adhesion can be produced without blocking gas flow channel in its inner current collector. In order to achieve the object, the present invention provides a method for manufacturing a tube-type fuel cell, comprising: a filling step of providing a columnar-shaped inner current collector having a gas flow channel on its outer peripheral face and filling the gas flow channel with a removable substance to form a removable portion; a functional layer forming step of forming a functional layer on at least the removable portion; and a removing step of removing the removable portion after the functional layer forming step.
    Type: Application
    Filed: August 30, 2006
    Publication date: February 19, 2009
    Inventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
  • Publication number: 20080152984
    Abstract: A tubular fuel cell module comprising a tubular fuel cell capable of improving current collection efficiency, and a fuel cell comprising the fuel cell module are provided. A fuel cell module (100) includes a plurality of tubular fuel cells (10A, 10A, . . . ) arranged in parallel and a first current collector (35), wherein the tubular fuel cells (10A, 10A, . . . ) are woven by the first current collector (35) in a direction crossing an axial direction of the tubular fuel cells (10A, 10A, . . . ) in a plan view.
    Type: Application
    Filed: February 3, 2006
    Publication date: June 26, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
  • Publication number: 20080138695
    Abstract: A fuel cell comprising cell module assemblies connected in series, each of which gathers two or more cell modules comprising a hollow electrolyte membrane in which an electrode is disposed on a bore side and a shell side thereof respectively, wherein each cell module assembly comprises: a cell module array in which two or more cell modules are aligned in parallel; a partition which separates a space outside of the cell module between the open end and a body of the cell module; a bore side gas passage and a shell side gas passage provided by the partition; a current collector for positive electrode provided in the vicinity of one end of the cell module in the cell module array so that the current collector for positive electrode integrally collects power from each current collector on the positive electrode side of each cell module; a current collector for negative electrode provided in the vicinity of the other end so that the current collector for negative electrode integrally collects power from each curren
    Type: Application
    Filed: February 3, 2006
    Publication date: June 12, 2008
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
  • Publication number: 20080124597
    Abstract: There is provided a hollow-shaped membrane electrode assembly for a fuel cell capable of improving power density per unit volume, wherein the hollow-shaped membrane electrode assembly for a fuel cell comprises a hollow solid electrolyte membrane, an outer electrode layer formed on the outer circumferential surface of the solid electrolyte membrane and an inner electrode layer formed on the inner circumferential surface of the solid electrolyte membrane, and wherein the hollow-shaped membrane electrode assembly for a fuel cell is formed in the shape of a spiral.
    Type: Application
    Filed: February 3, 2006
    Publication date: May 29, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shigeaki Murata, Haruyuki Nakanishi, Masahiro Imanishi, Yoshihisa Tamura
  • Patent number: 7293425
    Abstract: In order to provide a thermo-siphon chiller refrigerator for use in cold districts which performs natural refrigerant-circulation refrigerating cycle and also can perform a forced refrigerant-circulation refrigerating cycle when outside air temperature is high by using an indoor heat exchanger, an outdoor heat exchanger, and a compressor, and combining them with refrigerant piping, the thermo-siphon chiller refrigerator for use in cold districts of the invention has a compressor (10) additionally installed to a natural refrigerant-circulation refrigerating system comprising an outdoor heat exchanger (12), an indoor heat exchanger (11) located at a position lower than that of the outer heat exchanger (12), and an expansion valve (18). When the refrigerating capacity of the natural refrigerant-circulation refrigerating system is not sufficient, the additional compressor (10) is operated to perform a forced refrigerant-circulation cycle i.e. a vapor compression refrigerating cycle.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: November 13, 2007
    Assignee: Mayekawa Mfg. Co., Ltd.
    Inventors: Yoshihisa Tamura, Masataka Koyatsu, Akito Machida