Patents by Inventor Nagayuki Kanaoka

Nagayuki Kanaoka 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: 10074869
    Abstract: A fuel cell includes a membrane electrode assembly and a first separator. The first separator includes a first reactant gas channel, a first reactant gas manifold, and a first buffer portion. The first buffer portion is located outside of a power generation region of an electrode catalyst layer of the first electrode. The first buffer portion connects the first reactant gas channel to the first reactant gas manifold. A gas diffusion layer of the first electrode extends along a surface of the first separator to a first buffer region facing the first buffer portion. An intermediate layer of the first electrode covers a portion of the gas diffusion layer of the first electrode in the first buffer region.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: September 11, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masaaki Sakano, Nagayuki Kanaoka
  • Patent number: 9793568
    Abstract: A fuel cell is formed by sandwiching a membrane electrode assembly between a first separator and a second separator. The membrane electrode assembly includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. In the membrane electrode assembly, a catalyst area of an electrode catalyst layer of the cathode and an electrode catalyst layer of the anode terminates at a position spaced upwardly from lower ends of an oxygen-containing gas flow field and a fuel gas flow field.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: October 17, 2017
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaru Oda, Nagayuki Kanaoka, Shunsuke Itami, Ryohei Ishimaru, Masaaki Sakano
  • Publication number: 20140154606
    Abstract: A fuel cell includes a membrane electrode assembly and a first separator. The first separator includes a first reactant gas channel, a first reactant gas manifold, and a first buffer portion. The first buffer portion is located outside of a power generation region of an electrode catalyst layer of the first electrode. The first buffer portion connects the first reactant gas channel to the first reactant gas manifold. A gas diffusion layer of the first electrode extends along a surface of the first separator to a first buffer region facing the first buffer portion. An intermediate layer of the first electrode covers a portion of the gas diffusion layer of the first electrode in the first buffer region.
    Type: Application
    Filed: December 3, 2013
    Publication date: June 5, 2014
    Applicant: Honda Motor Co., Ltd.
    Inventors: Masaaki SAKANO, Nagayuki KANAOKA
  • Patent number: 8399148
    Abstract: Provided is a varnish which contains a solvent and an electrode electrolyte for a solid polymer fuel cell electrolyte, which contains a polymer with a structure having a main chain including a polyphenylene, a side chain including a sulfonic acid group and a repeating structural unit as a side chain including a nitrogen-containing heterocyclic group.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: March 19, 2013
    Assignees: JSR Corporation, Honda Motor Co., Ltd.
    Inventors: Makoto Higami, Igor Rozhanskii, Yoshitaka Yamakawa, Nagayuki Kanaoka, Kaoru Fukuda, Ryoichiro Takahashi, Hiroshi Shinkai
  • Patent number: 8349994
    Abstract: Disclosed is an electrode electrolyte for solid polymer fuel cells, which uses a polymer electrolyte containing a polyarylene copolymer containing a nitrogen-containing aromatic ring having a substituent represented by —SO3H, —(O(CH2)hSO3H or —O(CF2)hSO3H (wherein h represents an integer of 1-12). By having such a constitution, the electrode electrolyte for solid polymer fuel cells can be produced at a low cost, while being excellent in proton conductivity, dimensional stability, hydrothermal resistance and mechanical strength. In addition, this electrode electrolyte for solid polymer fuel cells enables to recover a catalyst metal.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: January 8, 2013
    Assignees: JSR Corporation, Honda Motor Co., Ltd.
    Inventors: Toshiaki Kadota, Yoshitaka Yamakawa, Fusao Nakagawa, Nagayuki Kanaoka, Takaki Nakagawa
  • Patent number: 8163406
    Abstract: A membrane-electrode assembly for solid polymer electrolyte fuel cell that exhibits superior dimensional stability to high temperature of hot water generated on power generation, and that has both excellent power generation performance and durability in a low temperature environment is provided. According to the membrane-electrode assembly for solid polymer electrolyte fuel cell in which a polyarylene-based copolymer having a specific repeating constitutional unit is used as a proton conductive membrane, the membrane-electrode assembly for solid polymer electrolyte fuel cell that exhibits superior dimensional stability to high temperature of hot water generated on power generation, and that has both excellent power generation performance and durability in a low temperature environment can be provided.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: April 24, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nagayuki Kanaoka, Hiroshi Sohma, Ryohei Ishimaru
  • Publication number: 20120040271
    Abstract: An electrode electrolyte for a solid polymer electrolyte-type fuel cell contains a polymer, which has a polyphenylene structure as a main chain and both a sulfonic acid group and a nitrogen-containing heterocyclic group as a side chain. A side chain having the nitrogen-containing heterocyclic group has a structure represented by the following general formula (D). where Z represents at least one kind of structures selected from a group consisting of a direct bond, —O— and —S—, Y represents at least one member selected from a group consisting of —CO—, —SO2—, —SO—, —CONH—, —COO—, —(CF2)1— (1 is an integer of 1 to 10) and —C(CF3)2, R20 represents a specified nitrogen-containing heterocyclic group, q represents an integer of 1 to 5 and p represents an integer of 0 to 4.
    Type: Application
    Filed: August 8, 2011
    Publication date: February 16, 2012
    Applicants: Honda Motor Co., Ltd., JSR Corporation
    Inventors: Makoto Higami, Igor Rozhanskii, Yoshitaka Yamakawa, Nagayuki Kanaoka, Kaoru Fukuda, Ryoichiro Takahashi, Hiroshi Shinkai
  • Patent number: 8114552
    Abstract: There is provided an electrode structure for a polymer electrolyte fuel cell having excellent power generation performance and excellent durability and a method for manufacturing the same. Also provided is a polymer electrolyte fuel cell including the electrode structure and an electrical apparatus and a transport apparatus using the polymer electrolyte fuel cell. The electrode structure includes a polymer electrolyte membrane 2 sandwiched between a pair of electrode catalyst layers 1, 1 containing carbon particles supporting catalyst particles. The polymer electrolyte membrane 2 is made of a sulfonated polyarylene-based polymer. The sulfonated polyarylene-based polymer has an ion exchange capacity in the range of 1.7 to 2.3 meq/g, and the polymer contains a component insoluble in N-methylpyrrolidone in an amount of 70% or less relative to the total amount of the polymer, after the polymer is subjected to heat treatment for exposing it under a constant temperature atmosphere of 12° C. for 200 hours.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: February 14, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yuichiro Hama, Masaru Iguchi, Junichi Yano, Nagayuki Kanaoka, Naoki Mitsuta
  • Patent number: 8043762
    Abstract: The present invention provides an electrode paste which comprises catalyst particles, a solvent and an varnish which comprises a solvent and an electrode electrolyte for a solid polymer fuel cell electrolyte, wherein the electrode electrolyte comprises a polymer with a structure having a main chain including a polyphenylene, a side chain including a sulfonic acid group and a repeating structural unit represented by formula (C) as a side chain including a nitrogen-containing heterocyclic group; wherein the structural variables are defined herein.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: October 25, 2011
    Assignees: JSR Corporation, Honda Motor Co., Ltd.
    Inventors: Makoto Higami, Igor Rozhanskii, Yoshitaka Yamakawa, Nagayuki Kanaoka, Kaoru Fukuda, Ryoichiro Takahashi, Hiroshi Shinkai
  • Patent number: 7981566
    Abstract: A membrane electrode assembly for a polymer electrolyte fuel cell has superior power generation characteristics under low humidity conditions and superior starting characteristics under low temperature conditions. In the membrane electrode assembly for a polymer electrolyte fuel cell in which a polymer electrolyte membrane is disposed between a pair of electrodes containing a catalyst, the polymer electrolyte membrane has a polymer segment A having an ion conductive component and a polymer segment B not having an ion conductive component. Furthermore, in the case in which the polymer electrolyte membrane is immersed in water at 90° C. for 30 minutes, absorbed water which exhibits a thawing temperature of from ?30 to 0° C. is in a range from 0.01 to 3.0 g per 1 g of the polymer.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: July 19, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nagayuki Kanaoka, Naoki Mitsuta, Yuichiro Hama, Ryoichiro Takahashi, Hiroshi Souma, Masaru Iguchi, Yoichi Asano
  • Publication number: 20110070516
    Abstract: A fuel cell is formed by sandwiching a membrane electrode assembly between a first separator and a second separator. The membrane electrode assembly includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. In the membrane electrode assembly, a catalyst area of an electrode catalyst layer of the cathode and an electrode catalyst layer of the anode terminates at a position spaced upwardly from lower ends of an oxygen-containing gas flow field and a fuel gas flow field.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 24, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masaru ODA, Nagayuki KANAOKA, Shunsuke ITAMI, Ryohei ISHIMARU, Masaaki SAKANO
  • Patent number: 7887969
    Abstract: A membrane electrode assembly for solid polymer electrolyte fuel cells exhibits higher proton conductivity and superior thermal resistance, in which the solid polymer electrolyte membrane has a nitrogen atom and a sulfonic acid group, and a principal chain of a constitutional unit is a phenylene bond, is provided. In particular, the membrane electrode assembly for solid polymer electrolyte fuel cells preferably contains the sulfonated polyarylene expressed by the formula (1).
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: February 15, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nagayuki Kanaoka, Masaru Iguchi, Hiroshi Sohma
  • Patent number: 7816053
    Abstract: A membrane-electrode assembly having superior hot water resistance has a membrane containing an aromatic polymer having a repeating unit expressed by general formula (1): in which A represents independently either —CO— or —SO2—; B represents independently an oxygen atom or sulfur atom; R1 to R8, which may be identical or different from each other, represent a hydrogen atom, fluorine atom, alkyl group, phenyl group or nitrile group; R9 to R24, which may be identical or different from each other, represent a hydrogen atom, alkyl group or phenyl group; and ‘a’ represents an integer of 0 to 4.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: October 19, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nagayuki Kanaoka, Masaru Iguchi, Hiroshi Sohma
  • Publication number: 20100190088
    Abstract: A membrane electrode assembly for a polymer electrolyte fuel cell has superior power generation characteristics under low humidity conditions and superior starting characteristics under low temperature conditions. In the membrane electrode assembly for a polymer electrolyte fuel cell in which a polymer electrolyte membrane is disposed between a pair of electrodes containing a catalyst, the polymer electrolyte membrane has a polymer segment A having an ion conductive component and a polymer segment B not having an ion conductive component. Furthermore, in the case in which the polymer electrolyte membrane is immersed in water at 90° C. for 30 minutes, absorbed water which exhibits a thawing temperature of from ?30 to 0° C. is in a range from 0.01 to 3.0 g per 1 g of the polymer.
    Type: Application
    Filed: April 1, 2010
    Publication date: July 29, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Nagayuki KANAOKA, Naoki Mitsuta, Yuichiro Hama, Ryoichiro Takahashi, Hiroshi Souma, Masaru Iguchi, Yoichi Asano
  • Patent number: 7749630
    Abstract: A polymer electrolyte membrane obtained by subjecting a sulfonated polyarylene membrane having an initial water content of 80-300 weight % to a hot-water treatment. A composite polymer electrolyte membrane comprising a matrix made of a first sulfonated aromatic polymer having a high ion exchange capacity, and a reinforcing material constituted by a second sulfonated aromatic polymer having a low ion exchange capacity in the form of fibers or a porous membrane.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: July 6, 2010
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoichi Asano, Masaaki Nanaumi, Hiroshi Sohma, Nagayuki Kanaoka, Nobuhiro Saito
  • Publication number: 20100167161
    Abstract: Disclosed is an electrode electrolyte for solid polymer fuel cells, which uses a polymer electrolyte containing a polyarylene copolymer containing a nitrogen-containing aromatic ring having a substituent represented by —SO3H, —(O(CH2)hSO3H or —O(CF2)hSO3H (wherein h represents an integer of 1-12). By having such a constitution, the electrode electrolyte for solid polymer fuel cells can be produced at a low cost, while being excellent in proton conductivity, dimensional stability, hydrothermal resistance and mechanical strength. In addition, this electrode electrolyte for solid polymer fuel cells enables to recover a catalyst metal.
    Type: Application
    Filed: May 16, 2008
    Publication date: July 1, 2010
    Inventors: Toshiaki Kadota, Yoshitaka Yamakawa, Fusao Nakagawa, Nagayuki Kanaoka, Takaki Nakagawa
  • Patent number: 7727654
    Abstract: Membrane-electrode assemblies are provided having a solid polymer electrolyte membrane that exhibits higher proton conductivity over a wide temperature range, and exhibits superior hot water resistance, chemical stability, toughness and mechanical strength. The membrane-electrode assemblies utilized for solid polymer electrolyte fuel cells include an anode electrode, a cathode electrode and a solid polymer electrolyte membrane, the anode electrode and the cathode electrode disposed on opposite sides of the solid polymer electrolyte membrane. The solid polymer electrolyte membrane contains a polyarylene copolymer with a specific constitutional unit having a fluorine atom and nitrile group introduced in their principal chains.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: June 1, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nagayuki Kanaoka, Masaru Iguchi, Hiroshi Sohma
  • Patent number: 7727652
    Abstract: A membrane electrode assembly for a polymer electrolyte fuel cell has superior power generation characteristics under low humidity conditions and superior starting characteristics under low temperature conditions. In the membrane electrode assembly for a polymer electrolyte fuel cell in which a polymer electrolyte membrane is disposed between a pair of electrodes containing a catalyst, the polymer electrolyte membrane has a polymer segment A having an ion conductive component and a polymer segment B not having an ion conductive component. Furthermore, in the case in which the polymer electrolyte membrane is immersed in water at 90° C. for 30 minutes, absorbed water which exhibits a thawing temperature of from ?30 to 0° C. is in a range from 0.01 to 3.0 g per 1 g of the polymer.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: June 1, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nagayuki Kanaoka, Naoki Mitsuta, Yuichiro Hama, Ryoichiro Takahashi, Hiroshi Souma, Masaru Iguchi, Yoichi Asano
  • Patent number: 7658867
    Abstract: A membrane-electrode assembly for solid polymer electrolyte fuel cells, in which a sulfonic acid is an ion exchange group, and the heat resistance is superior, is provided. The membrane-electrode assembly for solid polymer electrolyte fuel cells contains a polymer including a principal chain that forms polyphenylene structure, a branched chain having a sulfonic acid group, and a branched chain having a nitrogen-containing heterocyclic group. It is preferred that a branched chain having a nitrogen-containing heterocyclic group is a structure expressed by the general formula (D) below.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 9, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nagayuki Kanaoka, Masaru Iguchi, Hiroshi Sohma
  • Patent number: 7651802
    Abstract: Disclosed is a polymer electrolyte having a protonic acid group that is excellent in thermal stability and dimensional stability. The polymer electrolyte includes copolymers having a sulfonic acid group which has a structure represented by the following formula: wherein X is a divalent electron-withdrawing group; Y is an oxygen or a sulfur; Z and Q are each a direct bond, —O—, —S—, —CO—, —SO2—, —[C(R?)2]g— (g: integer of from 1 to 8), etc.; R, R? and R1 to R16 are each a hydrogen, a fluorine, an alkyl, a fluorine-substituted alkyl, an aryl or a nitrile; m, n, p, q, r, s, t and u are each an integer of from 0 to 4 (with the proviso that p+q?1); and A is a group represented by Formula (5a) or (5b) below: wherein W is a divalent electron-withdrawing group; S is a protonic acid group; i is an integer of from 1 to 5; and j is an integer of from 1 to 7.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: January 26, 2010
    Assignees: JSR Corporation, Honda Motor Co., Ltd.
    Inventors: Yoshitaka Yamakawa, Toshihiro Ohtsuki, Kohei Goto, Toshiaki Kadota, Teruhiko Umehara, Nagayuki Kanaoka, Masaru Iguchi, Hiroshi Sohma