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Hirohiko Otsu

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  • Tokyo, JP
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Patents Applicationslast 30 patents

  • Information Patent Application

    HYDRAULIC OIL FOR USE IN CONSTRUCTION MACHINERY
    • Publication number 20100298186
    • Publication date Nov 25, 2010
    • Hirohiko Otsu
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Lubricating Oil Composition
    • Publication number 20090318320
    • Publication date Dec 24, 2009
    • SHOWA SHELL SEKIYU K.K.
    • Hiroshi Kaneko
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Lubricating oil composition
    • Publication number 20070197411
    • Publication date Aug 23, 2007
    • Hiroshi Kaneko
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...