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Takefumi Kawata

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Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD FOR PRODUCING ORGANIC PHOTOELECTRIC CONVERSION ELEMENT
    • Publication number 20220013741
    • Publication date Jan 13, 2022
    • Sumitomo Chemical Company, Limited
    • Daisuke INOKUCHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    POLYMER ELECTROLYTE MEMBRANE
    • Publication number 20110033778
    • Publication date Feb 10, 2011
    • SUMITOMO CHEMICAL COMPANY, LIMITED
    • Takefumi Kawata
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    POLYMER ELECTROLYTE MEMBRANE
    • Publication number 20110008711
    • Publication date Jan 13, 2011
    • SUMITOMO CHEMICAL COMPANY LIMITED
    • Dai Iwahara
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    METHOD FOR DISCRIMINATING POLYMER COMPOUND MEMBRANE
    • Publication number 20110009505
    • Publication date Jan 13, 2011
    • Takefumi Kawata
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...