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Hiroshi Nagakawa

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  • Ichihara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pressure medium oil
    • Patent number 8,394,749
    • Issue date Mar 12, 2013
    • Idemitsu Kosan Co., Ltd.
    • Shoji Aoyama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil for refrigerator with compressor
    • Patent number 7,531,488
    • Issue date May 12, 2009
    • Idemitsu Kosan Co., Ltd.
    • Yasuhiro Kawaguchi
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil for refrigerator with compressor
    • Patent number 7,517,839
    • Issue date Apr 14, 2009
    • Idemitsu Kosan Co., Ltd.
    • Yasuhiro Kawaguchi
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil composition for high-temperature use
    • Patent number RE39382
    • Issue date Nov 7, 2006
    • Idemitsu Kosan Co., Ltd.
    • Hideto Kamimura
    • 508 - Solid anti-friction devices, materials therefor, lubricant or separant...
  • Information Patent Grant

    Refrigerating machine oil compositions
    • Patent number 6,878,677
    • Issue date Apr 12, 2005
    • Idemitsu Kosan Co., Ltd.
    • Shuichi Sakanoue
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil for refrigerator with compressor
    • Patent number 6,475,405
    • Issue date Nov 5, 2002
    • Idemitsu Kosan Co., Ltd.
    • Yasuhiro Kawaguchi
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Lubricating oil composition for high-temperature use
    • Patent number 6,465,400
    • Issue date Oct 15, 2002
    • Idemitsu Kosan Co., Ltd.
    • Hideto Kamimura
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil for refrigerator with compressor
    • Patent number 6,458,288
    • Issue date Oct 1, 2002
    • Idemitsu Kosan Co., Ltd.
    • Yasuhiro Kawaguchi
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Refrigerator oil composition
    • Patent number 4,800,030
    • Issue date Jan 24, 1989
    • Idemitsu Kosan Company Limited
    • Masato Kaneko
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

  • Information Patent Application

    PRESSURE MEDIUM OIL
    • Publication number 20090071870
    • Publication date Mar 19, 2009
    • Idemitsu Kosan Co., Ltd.
    • Shoji Aoyama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Lubricating oil for refrigerator with compressor
    • Publication number 20030127622
    • Publication date Jul 10, 2003
    • Yasuhiro Kawaguchi
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Lubricating oil for refrigerator with compressor
    • Publication number 20020077255
    • Publication date Jun 20, 2002
    • Yasuhiro Kawaguchi
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...