Patents by Inventor Masaya Kawasumi

Masaya Kawasumi 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: 8440365
    Abstract: An electrolyte having a structure where a fluorinated hydrophilic segment A represented by -E2-[Rf-E1]m- and a hydrocarbon hydrophobic segment B are alternately bonded to each other through chemical bond and a production process therefor, and an electrolyte membrane, a production process therefor, a catalyst layer and a fuel cell using the same. Rf is a linear or a branched perfluoro chain having one or more carbon atoms, E1, and E2 are each a proton conductive portion represented by Formula —(CONM)i1(CO)i2(SO2NM)i3(SO2)i4— (0?i1, 0?i2?1, 0?i3, 0?i4?1, 0<i1+i3, i1 to i4 are each an integer, and M is proton, alkali metal, or alkali earth metal), 2?m (m is an integer), and Rf, E1, and E2 may be each arbitrarily selected in the repeating unit.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: May 14, 2013
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha
    Inventors: Naohiro Hoshikawa, Naoki Hasegawa, Yoichi Hosokawa, Masaya Kawasumi, Akihiro Shinohara, Hiromitsu Tanaka, Masayoshi Takami, Toshihiko Yoshida
  • Publication number: 20130065114
    Abstract: A polymer electrolyte includes a fluorine-containing structure having an alicyclic 1,3-disulfonimide in a principal chain or side chain of the polymer. A battery includes the polymer electrolyte. An imide monomer is able to introduce a fluorine-containing structure having an alicyclic 1,3-disulfonimide into a principal chain or side chain of a polymer through a polymerization reaction or a combination of a polymerization reaction and a fluorination reaction. A manufacturing method for a polymer electrolyte includes a polymerization step of polymerizing a raw material that includes one or two or more types of imide monomers that are able to introduce a fluorine-containing structure having an alicyclic 1,3-disulfonimide into a principal chain or side chain of a polymer through a polymerization reaction or a combination of a polymerization reaction and a fluorination reaction.
    Type: Application
    Filed: May 19, 2011
    Publication date: March 14, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiro Shinohara, Naoki Hasegawa, Masaya Kawasumi, Masayoshi Takami, Toshihiko Yoshida
  • Patent number: 8034509
    Abstract: The membrane electrode assembly 1 has an anode 10, a cathode 20, and an electrolyte membrane 30 disposed between the anode and cathode; the anode and cathode are gas diffusion electrodes; the electrolyte membrane contains a solid electrolyte in which a plurality of pores with mean pore diameters of 1 to 30 nm are formed; and the solid electrolyte has a backbone comprising organic groups having one or more metal atoms, oxygen atoms bonded to the metal atoms, and carbon atoms bonded to the metal atoms or oxygen atoms, and also has functional groups with ion-exchange capabilities that are bonded to the organic groups in the pores.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: October 11, 2011
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Shinji Inagaki, Yoshiaki Fukushima, Masaya Kawasumi, Naoki Hasegawa, Yu Morimoto, Kyoko Tsusaka
  • Patent number: 7973109
    Abstract: A process for producing a crosslinked type or non-crosslinked type layered metal phosphonate compound including a reaction step of reacting two or more members selected from organic diphosphonic acids or monophosphonic acids, or derivatives thereof having predetermined conditions and a metal source capable of forming an ion of a hexacoordinate metal atom as a central atom (M) of a metal oxide octahedron upon reaction under the presence of a sulfuric acid catalyst, a crosslinked or non-crosslinked metal phosphonate compound obtained by the process, as well as a stock solution used for the synthesis of the crosslinked or non-crosslinked type layered metal phosphonate compound described above.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: July 5, 2011
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Shin-ichi Ogata, Yoshiaki Fukushima, Masaya Kawasumi
  • Patent number: 7879475
    Abstract: Disclosed herein is a solid polymer electrolyte wherein protons of cation exchange groups contained in a perfluorinated electrolyte are partially replaced by metal ions. The metal ion is at least one metal ion selected from vanadium (V), manganese (Mn), niobium (Nb), tantalum (Ta), chromium (Cr), molybdenum (Mo), tungsten (W), iron (Fe), ruthenium (Ru), nickel (Ni), palladium (Pd), platinum (Pt), silver (Ag), cerium (Ce), neodymium (Nd), praseodymium (Pr), samarium (Sm), cobalt (Co), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), and erbium (Er) ions. Further disclosed is a solid polymer fuel cell using the solid polymer electrolyte.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: February 1, 2011
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Eishiro Toyoda, Tomohiro Takeshita, Fusayoshi Miura, Masaya Kawasumi, Naoki Hasegawa, Yu Morimoto, Manabu Kato, Kazutaka Kimura
  • Publication number: 20100197815
    Abstract: A polyparaphenylene hydrocarbon electrolyte having a structure represented by a formula (1), a manufacture method therefore, and a polyparaphenylene usable as a raw material for manufacturing the polyparaphenylene hydrocarbon electrolyte, as well as a electrolyte membrane, a catalyst layer and a solid polymer fuel cell that employ the polyparaphenylene hydrocarbon-based electrolyte. In the formula, A is an integer of (1) or greater; B is an integer of 0 or greater; and C is an integer of 1 to 10. X represents a direct bond or an oxygen atom, which is arbitrarily assignable in repetitions. At least one of Y1s represents a proton-conducting site, and the rest of Y1s each represent a hydrogen atom or a proton-conducting site, which is arbitrarily assignable in repetitions. The proton-conducting site is made up of —SO3H, —COOH, —PO3H2 or —SO2NHSO2R (R is an alkyl chain or a perfluoroalkyl chain).
    Type: Application
    Filed: March 28, 2007
    Publication date: August 5, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naohiro Hoshikawa, Naoki Hasegawa, Masaya Kawasumi, Yoshifumi Aoki, Masayoshi Takami, Mitsuyasu Kawahara
  • Patent number: 7592375
    Abstract: Disclosed herein is an ion conductive polymer comprising a unit represented by Formula (1) below: —SO2[N?SO2(M+)]X1-??(1) wherein X1 is an integer greater than 1, and M+ is H+ or Li+. Further disclosed is an imide monomer represented by Formula (A) below: Z1-SO2[N?SO2M+]Y-Z2 ??(A) wherein Y is an integer of 2 or greater, Z1 is OH, F, Cl, Br, I or NZ3Z4 (in which Z3 and Z4 are each independently H, M or SiMe3, and M is a metal element), Z2 is OH, F, Cl, Br, I or NZ3Z4 (in which Z3 and Z4 are each independently H, M or SiMe3, and M is a metal element), and M+ is H+ or Li+.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: September 22, 2009
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Greg Shafer, Masaya Kawasumi, Yoichi Hosokawa, Naoki Hasegawa, Satoru Yamamoto, Kenji Imai, Yuko Murayama, Shiaki Hyodo
  • Publication number: 20090191442
    Abstract: An electrolyte having a structure where a fluorinated hydrophilic segment A represented by -E2-[Rf-E1]m- and a hydrocarbon hydrophobic segment B are alternately bonded to each other through chemical bond and a production process therefor, and an electrolyte membrane, a production process therefor, a catalyst layer and a fuel cell using the same. Rf is a linear or a branched perfluoro chain having one or more carbon atoms, E1, and E2 are each a proton conductive portion represented by Formula —(CONM)i1(CO)i2(SO2NM)i3(SO2)i4— (0?i1, 0?i2?1, 0?i3, 0?i4?1, 0<i1+i3, i1 to i4 are each an integer, and M is proton, alkali metal, or alkali earth metal), 2?m (m is an integer), and Rf, E1, and E2 may be each arbitrarily selected in the repeating unit.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 30, 2009
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naohiro Hoshikawa, Naoki Hasegawa, Yoichi Hosokawa, Masaya Kawasumi, Akihiro Shinohara, Hiromitsu Tanaka, Masayoshi Takami, Toshihiko Yoshida
  • Publication number: 20090093607
    Abstract: A process for producing a crosslinked type or non-crosslinked type layered metal phosphonate compound including a reaction step of reacting two or more members selected from organic diphosphonic acids or monophosphonic acids, or derivatives thereof having predetermined conditions and a metal source capable of forming an ion of a hexacoordinate metal atom as a central atom (M) of a metal oxide octahedron upon reaction under the presence of a sulfuric acid catalyst, a crosslinked or non-crosslinked metal phosphonate compound obtained by the process, as well as a stock solution used for the synthesis of the crosslinked or non-crosslinked type layered metal phosphonate compound described above.
    Type: Application
    Filed: March 24, 2008
    Publication date: April 9, 2009
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shin-ichi Ogata, Yoshiaki Fukushima, Masaya Kawasumi
  • Patent number: 7414102
    Abstract: A polymer electrolyte of high durability consistent with the present invention is characterized as including a first repeating unit represented by a general formula —{C(Z1)(Z2)—C(Z3)(Z4—SO3H)}— (where Z1, Z2, Z3, and Z4 are respectively F or Rf1, F or Rf2, F or Rf3, and nothing or Rf4; and each of Rf1, to Rf4 is a perfluoroalkyl group in which the carbon number is from 1 to 10) in a polymer chain, and having an equivalent weight of 2500 g/eq or less.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: August 19, 2008
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Atsushi Kamiya, Naoki Hasegawa, Satoru Yamamoto, Hisato Takeuchi, Masaya Kawasumi
  • Publication number: 20060280985
    Abstract: Disclosed herein is a solid polymer electrolyte wherein protons of cation exchange groups contained in a perfluorinated electrolyte are partially replaced by metal ions. The metal ion is at least one metal ion selected from vanadium (V), manganese (Mn), niobium (Nb), tantalum (Ta), chromium (Cr), molybdenum (Mo), tungsten (W), iron (Fe), ruthenium (Ru), nickel (Ni), palladium (Pd), platinum (Pt), silver (Ag), cerium (Ce), neodymium (Nd), praseodymium (Pr), samarium (Sm), cobalt (Co), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), and erbium (Er) ions. Further disclosed is a solid polymer fuel cell using the solid polymer electrolyte.
    Type: Application
    Filed: May 26, 2006
    Publication date: December 14, 2006
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Eishiro Toyoda, Tomohiro Takeshita, Fusayoshi Miura, Masaya Kawasumi, Naoki Hasegawa, Yu Morimoto, Manabu Kato, Kazutaka Kimura
  • Publication number: 20060258759
    Abstract: Disclosed herein is an ion conductive polymer comprising a unit represented by Formula (1) below: —SO2[N?SO2(M+)]X1—??(1) wherein X1 is an integer greater than 1, and M+ is H+ or Li+. Further disclosed is an imide monomer represented by Formula (A) below: Z1-SO2[N?SO2M+]Y-Z2 ??(A) wherein Y is an integer of 2 or greater, Z1 is OH, F, Cl, Br, I or NZ3Z4 (in which Z3 and Z4 are each independently H, M or SiMe3, and M is a metal element), Z2 is OH, F, Cl, Br, I or NZ3Z4 (in which Z3 and Z4 are each independently H, M or SiMe3, and M is a metal element), and M+ is H+ or Li+.
    Type: Application
    Filed: May 2, 2006
    Publication date: November 16, 2006
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Greg Shafer, Masaya Kawasumi, Yoichi Hosokawa, Naoki Hasegawa, Satoru Yamamoto, Kenji Imai, Yuko Murayama, Shiaki Hyodo
  • Patent number: 7060735
    Abstract: A Polymer Electrolyte Membrane is formed by hot air drying of a membrane formed with an acidic main-polymer having proton conductivity and capability of forming an electrolyte membrane (S12), and then immersing it into a basic polymer solution to impregnate the membrane with the basic polymer (S14). The basic polymer is introduced in a large quantity into a site acting as a proton conduction pass of the main-polymer to take charge of the proton conduction. Since in the Polymer Electrolyte Membrane, a base polymer takes charge of proton conduction as compared with the case where proton takes charge of the proton conduction as a hydrate, the base polymer shows favorable proton conductivity even in a low humidity state at an elevated temperature exceeding boiling point of water.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: June 13, 2006
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takumi Taniguchi, Mitsuru Nakano, Masaya Kawasumi, Yu Morimoto, Naoki Hasegawa
  • Publication number: 20050004335
    Abstract: A polymer electrolyte of high durability consistent with the present invention is characterized as including a first repeating unit represented by a general formula —{C(Z1)(Z2)-C(Z3)(Z4-SO3H)}— (where Z1, Z2, Z3, and Z4 are respectively F or Rf1, F or Rf2, F or Rf3, and nothing or Rf4; and each of Rf1, to Rf4 is a perfluoroalkyl group in which the carbon number is from 1 to 10) in a polymer chain, and having an equivalent weight of 2500 g/eq or less.
    Type: Application
    Filed: June 9, 2004
    Publication date: January 6, 2005
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Atsushi Kamiya, Naoki Hasegawa, Satoru Yamamoto, Hisato Takeuchi, Masaya Kawasumi
  • Patent number: 6827986
    Abstract: The present invention is a grafted polymer electrolyte membrane prepared by first preparing a precursor membrane comprising a polymer which is capable of being graft polymerized, exposing the surface of the precursor membrane to a plasma in an oxidative atmosphere, then graft-polymerizing a side chain polymer to the plasma treated precursor membrane and introducing a proton conductive functional group to the side chain. The resulting grafted polymer electrolyte membrane has excellent stability and performance when used in a proton-exchange membrane fuel cell or for electrolysis of water.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: December 7, 2004
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Michio Asukabe, Michiaki Kato, Takumi Taniguchi, Yu Morimoto, Masaya Kawasumi
  • Patent number: 6713207
    Abstract: Disclosed is a membrane electrode assembly obtained by bonding electrodes to both surfaces of a solid polymer electrolyte membrane suitably for use in a solid polymer fuel cell. In order to maintain not only the solid polymer electrolyte but also the electrode in appropriate wet states, the catalyst layer of the assembly contains a metalloxane polymer in the intra-catalyst-layer electrolyte including an electrode catalyst preferably in an amount of 0.5 to 50 wt % of the total weight of the intra-catalyst-layer electrolyte and the metalloxane polymer contained therein exclusive of the electrode catalyst.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: March 30, 2004
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Kyoko Tsusaka, Masaya Kawasumi, Yu Morimoto
  • Publication number: 20030175569
    Abstract: The membrane electrode assembly 1 has an anode 10, a cathode 20, and an electrolyte membrane 30 disposed between the anode and cathode; the anode and cathode are gas diffusion electrodes; the electrolyte membrane contains a solid electrolyte in which a plurality of pores with mean pore diameters of 1 to 30 nm are formed; and the solid electrolyte has a backbone comprising organic groups having one or more metal atoms, oxygen atoms bonded to the metal atoms, and carbon atoms bonded to the metal atoms or oxygen atoms, and also has functional groups with ion-exchange capabilities that are bonded to the organic groups in the pores.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 18, 2003
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shinji Inagaki, Yoshiaki Fukushima, Masaya Kawasumi, Naoki Hasegawa, Yu Morimoto, Kyoko Tsusaka
  • Patent number: 6607856
    Abstract: In solid polymer electrolyte having high-durability, comprising a polymer electrolyte material having a hydrocarbon part, a chelate group and an electrolyte group are introduced into the polymer electrolyte material. The chelate group contains a phosphonic acid group, nitrogen, both of nitrogen and a phosphonic acid group (one or more selected from the group consisting of alkylamino monophosphonic acid groups, alkylamino diphosphonic acid groups, dialkylamino monophosphonic acid groups, alkylalkylene diamine triphosphonic acid groups, and alkylimino phosphonic acid groups) or, both of nitrogen and a carboxylic acid group (one or more selected from the group consisting of alkylamino monocarboxylic acid groups, alkylamino dicarboxylic acid groups, dialkylamino monocarboxylic acid groups, alkylalkylene diamine tricarboxylic acid groups, and alkylimino carboxylic acid groups).
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: August 19, 2003
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Takahisa Suzuki, Takumi Taniguchi, Yu Morimoto, Masaya Kawasumi, Naoki Hasegawa, Atsushi Kamiya
  • Publication number: 20030087972
    Abstract: A Polymer Electrolyte Membrane is formed by hot air drying of a membrane formed with an acidic main-polymer having proton conductivity and capability of forming an electrolyte membrane (S12), and then immersing it into a basic polymer solution to polymer (S14). The basic polymer is introduced in a large quantity into a site acting as a proton conduction pass of the main-polymer to take charge of the proton conduction. Since in the Polymer Electrolyte Membrane, a base polymer takes charge of proton conduction as compared with the case where proton takes charge of the proton conduction as a hydrate, the base polymer shows favorable proton conductivity even in a low humidity state at an elevated temperature exceeding boiling point of water.
    Type: Application
    Filed: August 21, 2002
    Publication date: May 8, 2003
    Inventors: Takumi Taniguchi, Mitsuru Nakano, Masaya Kawasumi, Yu Morimoto, Naoki Hasegawa
  • Publication number: 20020160272
    Abstract: A first process for producing a modified electrolyte consistent with the present invention comprises an amine treatment step of contacting a solid polymer electrolyte or a precursor thereof with an amine compound. Further, a first modified electrolyte consistent with the present invention consists essentially of what is obtained in such a process. A second process for producing the modified electrolyte consistent with the present invention includes a step of introducing, to a solid polymer compound having a functional group A, a first modifying agent comprising at least one functional group B capable of reacting with the functional group A thereby forming a first intermediate acid group; and the step also includes reacting the functional group A and the functional group B.
    Type: Application
    Filed: February 22, 2002
    Publication date: October 31, 2002
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO
    Inventors: Hiromitsu Tanaka, Arimitsu Usuki, Masaya Kawasumi, Yu Morimoto, Naoki Hasegawa, Mitsuru Nakano, Atsushi Kamiya