Patents by Inventor Hiroshi Shinkai

Hiroshi Shinkai 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: 10947627
    Abstract: A hydrogen communication hole of a water electrolysis apparatus is formed to penetrate in a stacking direction through an anode separator, an electrolyte membrane, and a cathode separator. A communication hole body, which is disposed between an anode current collector and the hydrogen communication hole, includes an inside member facing toward the hydrogen communication hole, and an outside member facing toward the anode current collector. On the outside member, there are provided accommodating chambers in which seal members are accommodated, and an opposing surface that faces toward the inside member without the seal members being interposed therebetween. The accommodating chambers and the hydrogen communication hole communicate via through holes, which are formed in the inside member in a manner so that openings on one end thereof face toward the opposing surface, and openings on another end thereof face toward the hydrogen communication hole.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 16, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tadashi Nishiyama, Hiroshi Shinkai, Akihiro Noda
  • Publication number: 20190218676
    Abstract: A water electrolysis system includes a water electrolysis stack, a gas-liquid separator, a water supply path, a water introduction unit, a water lead-out unit, a water discharge path, and a circulation pump. The water lead-out unit includes a first water lead-out unit and a second water lead-out unit, which are provided in the water electrolysis stack. The water introduction unit is positioned in a stacking direction between the first water lead-out unit and the second water lead-out unit, together with being disposed in a water electrolysis cell which is positioned between both ends in the stacking direction among a plurality of the water electrolysis cells.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 18, 2019
    Inventors: Akihiro NODA, Tadashi NISHIYAMA, Hiroshi SHINKAI
  • Publication number: 20190194813
    Abstract: A hydrogen communication hole of a water electrolysis apparatus is formed to penetrate in a stacking direction through an anode separator, an electrolyte membrane, and a cathode separator. A communication hole body, which is disposed between an anode current collector and the hydrogen communication hole, includes an inside member facing toward the hydrogen communication hole, and an outside member facing toward the anode current collector. On the outside member, there are provided accommodating chambers in which seal members are accommodated, and an opposing surface that faces toward the inside member without the seal members being interposed therebetween. The accommodating chambers and the hydrogen communication hole communicate via through holes, which are formed in the inside member in a manner so that openings on one end thereof face toward the opposing surface, and openings on another end thereof face toward the hydrogen communication hole.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 27, 2019
    Inventors: Tadashi Nishiyama, Hiroshi Shinkai, Akihiro Noda
  • Patent number: 10056619
    Abstract: A membrane electrode assembly with protective film includes a MEA and protective films. The MEA includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. The protective films are joined on the outer end of the solid polymer electrolyte membrane. The membrane electrode assembly has a power generation area and an edge-vicinity area. Recesses for receiving the edge-vicinity area including outer ends of the cathode and the anode are formed in outer portions of a cathode-side separator and an anode-side separator which contact the MEA.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: August 21, 2018
    Assignee: Honda Motor Co., Ltd.
    Inventors: Seiji Sugiura, Hiroshi Shinkai, Kenichi Tanaka, Mihoko Kawaharada, Kenta Urata, Yukihito Tanaka, Takashi Kato
  • Patent number: 8911916
    Abstract: A fuel cell includes a membrane electrode assembly, a first separator, and a second separator. The membrane electrode assembly includes a solid polymer electrolyte membrane, a first electrode, a second electrode, and a resin frame member. The membrane electrode assembly includes a power generation section and a stepped section. The power generation section is located in an interior space of the resin frame member. The solid polymer electrolyte membrane is provided between the first electrode and the second electrode in the power generation section. The stepped section is located on an outer side of the first electrode. The solid polymer electrolyte membrane is provided between the second electrode and the resin frame member in the stepped section. A magnitude of an interference in the stepped section is set to be smaller than a magnitude of an interference in the power generation section.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: December 16, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Seiji Sugiura, Hiroshi Shinkai, Kenichi Tanaka, Mihoko Kawaharada, Kenta Urata, Yukihito Tanaka, Takashi Kato
  • Patent number: 8865366
    Abstract: An assembling operation of a fuel cell is effectively simplified. With the simple and economical structure, the desired sealing function is achieved. The fuel cell (10) includes a membrane electrode assembly (14) and first and second metal separators (16, 18) sandwiching the membrane electrode assembly (14). Connection channels (28a, 28b) are provided on the first metal separator (16). The connection channels (28a, 28b) connect the oxygen-containing gas supply passage (20a) and the oxygen-containing gas discharge passage (20b) to the oxygen-containing gas flow field (26). The membrane electrode assembly (14) has first overlapping portions (66a, 66b) overlapped on the connection channels (28a, 28b) for sealing the connection channels (28a, 28b). The first overlapping portions (66a, 66b) comprise, in effect, a gas diffusion layer.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: October 21, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Narutoshi Sugita, Katsuhiko Kohyama, Shuhei Goto, Hiroshi Shinkai, Hiroyuki Tanaka, Takaki Nakagawa
  • 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: 8236206
    Abstract: The present invention provides an electrode catalyst layer comprising catalyst particles, an ion exchange resin and a water repellent agent. The water repellent agent contains (A) a fluorine-containing copolymer having a structure unit derived from a polyfluoroalkyl-containing (meth)acrylate and/or (B) a fluorine-containing copolymer having a structural unit represented by derived from a fluorine-containing olefin monomer and a structure unit represented derived from a vinyl ether monomer. The electrode catalyst layer contains 0.1 to 20% by weight of the water repellant agent. The electrode catalyst layer exhibits excellent balance between water retention and drainage in an electrode, good power generation performance under any of low humidity and high humidity conditions, and also excellent durability in power generation.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: August 7, 2012
    Assignees: JSR Corporation, Honda Motor Co., Ltd.
    Inventors: Satoshi Komatsu, Junji Kawai, Toshihiro Ohtsuki, Takanobu Yamamoto, Ryoichiro Takahashi, Kaoru Fukuda, Hiroshi Shinkai
  • Publication number: 20120183881
    Abstract: An assembling operation of a fuel cell is effectively simplified. With the simple and economical structure, the desired sealing function is achieved. The fuel cell (10) includes a membrane electrode assembly (14) and first and second metal separators (16, 18) sandwiching the membrane electrode assembly (14). Connection channels (28a, 28b) are provided on the first metal separator (16). The connection channels (28a, 28b) connect the oxygen-containing gas supply passage (20a) and the oxygen-containing gas discharge passage (20b) to the oxygen-containing gas flow field (26). The membrane electrode assembly (14) has first overlapping portions (66a, 66b) overlapped on the connection channels (28a, 28b) for sealing the connection channels (28a, 28b). The first overlapping portions (66a, 66b) comprise, in effect, a gas diffusion layer.
    Type: Application
    Filed: March 29, 2012
    Publication date: July 19, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Narutoshi SUGITA, Katsuhiko KOHYAMA, Shuhei GOTO, Hiroshi SHINKAI, Hiroyuki TANAKA, Takaki NAKAGAWA
  • Patent number: 8153333
    Abstract: An assembling operation of a fuel cell is effectively simplified. With the simple and economical structure, the desired sealing function is achieved. The fuel cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. Connection channels are provided on the first metal separator. The connection channels connect the oxygen-containing gas supply passage and the oxygen-containing gas discharge passage to the oxygen-containing gas flow field. The membrane electrode assembly has first overlapping portions overlapped on the connection channels for sealing the connection channels. The first overlapping portions comprise, in effect, a gas diffusion layer.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: April 10, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Narutoshi Sugita, Katsuhiko Kohyama, Shuhei Goto, Hiroshi Shinkai, Hiroyuki Tanaka, Takaki Nakagawa
  • 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: 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: 7776464
    Abstract: A solid polymer electrolyte fuel cell (2) is formed from an electrode structure (7) and first and second separators (8, 9). The electrode structure (7) has a solid polymer electrolyte membrane (10), first and second electrode layers (11, 12), and first and second diffusion layers (13, 14). The first separator (8) forms a first gas passage (PH) through which a fuel gas (H) flows, and the second separator (9) forms a second gas passage (PA) through which an oxidizing gas (A) flows. A first jutting-out portion (15) of the solid polymer electrolyte membrane (10) and a second jutting-out portion (16) of the second diffusion layer (14) are joined together over the entire peripheries thereof via a cured adhesive layer (17), and the second jutting-out portion (16) is in a state in which it is impregnated by cured adhesive.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: August 17, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Katsuhiko Kohyama, Hiroshi Shinkai, Hiroyuki Tanaka
  • Patent number: 7566511
    Abstract: A cell assembly (10) includes a first unit cell (12) and a second unit cell (14). The first unit cell (12) and the second unit cell (14) are juxtaposed such that electrode surfaces of the first unit cell (12) and electrode surfaces of the second unit cell (14) are aligned in parallel with each other. An oxygen-containing gas flow passage (32) includes a first oxygen-containing gas passage (38) in the first unit cell (12), an oxygen-containing gas connection passage (40) in a connection passage member (16), and a second oxygen-containing gas passage (42) in the second unit cell (14). The first oxygen-containing gas passage (38), the oxygen-containing gas connection passage (40), and the second oxygen-containing gas passage (42) are connected serially from the first unit cell (12) to the second unit cell (14).
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: July 28, 2009
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshinori Wariishi, Naoyuki Enjoji, Yoichi Asano, Hiroshi Shinkai
  • Publication number: 20090134360
    Abstract: An object of the invention is to provide an electrode catalyst layer of a solid polymer electrolyte membrane-electrode assembly expressing excellent balance between water retention and drainage in an electrode, good power generation performance under any of low humidity and high humidity conditions, and also excellent durability of power generation. The electrode catalyst layer of the invention contains catalyst particles, an ion exchange resin and a water repellent agent, wherein said water repellent agent contains at least one kind selected from the group consisting of (A) a fluorine-containing copolymer having a structure unit derived from a polyfluoroalkyl-containing (meth)acrylate and (B) a fluorine-containing copolymer having a specific structure unit derived from a fluorine-containing olefin monomer and a specific structure unit derived from a vinyl ether monomer.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 28, 2009
    Applicants: JSR CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Satoshi Komatsu, Junji Kawai, Toshihiro Ohtsuki, Takanobu Yamamoto, Ryoichiro Takahashi, Kaoru Fukuda, Hiroshi Shinkai
  • Publication number: 20090130526
    Abstract: This invention provides an electrode electrolyte for a solid polymer-type fuel cell, in which a cost problem and a problem related to recovery of catalyst metals are solved, having excellent proton conductivity, dimensional stability and heat resistance. 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). (In formula, 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 kind of structures 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— and R20 represents a nitrogen-containing heterocyclic group.
    Type: Application
    Filed: June 30, 2006
    Publication date: May 21, 2009
    Applicants: JSR CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Makoto Higami, Igor Rozhanskii, Yoshitaka Yamakawa, Nagayuki Kanaoka, Kaoru Fukuda, Ryoichiro Takahashi, Hiroshi Shinkai
  • Patent number: 7531265
    Abstract: A fuel cell includes a membrane electrode assembly and first and second metal separators. The first metal separator has first outer protrusions provided outside an oxygen-containing gas flow field. The second metal separator has second outer protrusions provided outside a fuel gas flow field. The first and second protrusions sandwich outer edges of electrode catalyst layers.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: May 12, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Seiji Sugiura, Masaaki Nanaumi, Hiroshi Shinkai, Shuhei Goto
  • Patent number: 7306876
    Abstract: A membrane-electrode structure having an electrode catalyst layer adhered to a diffusion electrode, wherein the structure is manufactured by applying a catalyst paste onto a sheet substrate, and then dried to form a plurality of electrode catalyst layers. The electrode catalyst layers are thermally transferred onto each side of a polymer electrolyte membrane to form a laminated body. A first slurry is applied on a carbon substrate layer, and dried to form a water-repellent layer, and then, a second slurry is applied on the water-repellent layer, and dried to form a hydrophilic layer to form a diffusion electrode. The diffusion electrode is then laminated on the electrode catalyst layer through the hydrophilic layer, and then pressed under heating to integrate the laminated body and the diffusion electrode.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: December 11, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaki Tani, Hiroshi Shinkai, Katsuhiko Kohyama, Ichiro Tanaka, Yuichiro Hama, Junichi Yano
  • Patent number: 7232627
    Abstract: An electrode for a solid polymer fuel cell includes a gas diffusion layer, an electrode catalyst layer disposed between a solid polymer membrane of the fuel cell and the gas diffusion layer, and a water-holding layer disposed between the gas diffusion layer and the electrode catalyst layer. Under high-relative humidity conditions of reaction gases, flooding can be prevented because the electrode catalyst layer is made porous, while under low-relative humidity conditions of reaction gases, sufficient water contents can be stably provided thanks to the water-holding layer so that proton conductivity of the solid polymer membrane can be maintained appropriately. Consequently, high-performance and high-durability electrode and membrane electrode assembly for a solid polymer fuel cell can be provided such that the performance and the durability thereof are not affected by change in relative humidity in reactant gases supplied to the solid polymer fuel cell.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: June 19, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kaoru Fukuda, Masaki Tani, Shigeru Inai, Hayato Kaji, Chikara Iwasawa, Shinya Watanabe, Katsuhiko Kohyama, Hiroshi Shinkai, Takeshi Muro
  • Patent number: 7226688
    Abstract: A fuel gas inlet is provided at an outer circumferential edge portion of a second separator. First fuel gas flow passage grooves for supplying a fuel gas to an anode electrode are formed on a side of a surface of the second separator. First fuel gas connecting flow passages, which make communication between the fuel gas inlet and the first fuel gas flow passage grooves, include flow passage grooves which are provided on a side of a surface, and through-holes which penetrate through the second separator to make communication with the first fuel gas flow passage grooves. Accordingly, excellent sealing performance is ensured with a simple structure, and it is possible to realize a thin-walled fuel cell.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: June 5, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yosuke Fujii, Noriaki Osao, Yoshinori Wariishi, Takaki Nakagawa, Hiroshi Shinkai, Katsumi Hayashi