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Toshiyuki Obata

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Patents Grantslast 30 patents

  • Information Patent Grant

    Refrigerating machine oil compositions
    • Patent number 8,796,193
    • Issue date Aug 5, 2014
    • Nippon Oil Corporation
    • Kazuo Tagawa
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

  • Information Patent Application

    Refrigerating machine oil compositions
    • Publication number 20070155635
    • Publication date Jul 5, 2007
    • Nippon Oil Corporation
    • Kazuo Tagawa
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...