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Izuru Sugiura

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Patents Grantslast 30 patents

  • Information Patent Grant

    Lubricant base oil, lubricant composition for internal combustion e...
    • Patent number 9,012,380
    • Issue date Apr 21, 2015
    • Nippon Oil Corporation
    • Takashi Sano
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Electrochromic device
    • Patent number 6,538,792
    • Issue date Mar 25, 2003
    • Nippon Mitsubishi Oil Corporation
    • Masaaki Kobayashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrochromic element
    • Patent number 6,532,098
    • Issue date Mar 11, 2003
    • Nippon Mitsubishi Oil Corporation
    • Masaaki Kobayashi
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Electrochromic device
    • Patent number 6,437,901
    • Issue date Aug 20, 2002
    • Nippon Mitsubishi Oil Corporation
    • Masaaki Kobayashi
    • G02 - OPTICS
  • Information Patent Grant

    Electrochromic device
    • Patent number 6,208,452
    • Issue date Mar 27, 2001
    • Nippon Mitsubishi Oil Corporation
    • Yoshinori Nishikitani
    • G02 - OPTICS
  • Information Patent Grant

    Electrochromic element
    • Patent number 6,203,154
    • Issue date Mar 20, 2001
    • Nippon Mitsubishi Oil Corporation
    • Masaaki Kobayashi
    • G02 - OPTICS
  • Information Patent Grant

    Method of producing a cross-linked polyvinyl alcohol separator for...
    • Patent number 6,033,806
    • Issue date Mar 7, 2000
    • Nippon Oil Co., Ltd.
    • Izuru Sugiura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents