TREA

Yasuhiro Ogawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Threaded joint for steel pipe
    • Patent number 7,866,706
    • Issue date Jan 11, 2011
    • Sumitomo Metal Industries, Ltd.
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Threaded joint for steel pipes
    • Patent number 7,770,935
    • Issue date Aug 10, 2010
    • Sumitomo Metal Industries, Ltd.
    • Ryuichi Imai
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

  • Information Patent Application

    Screw Joint for Steel Pipe and Process for Manufacturing Thereof
    • Publication number 20080277925
    • Publication date Nov 13, 2008
    • Sumitomo Metal Industries, Ltd.
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Threaded joint for steel pipes
    • Publication number 20060197343
    • Publication date Sep 7, 2006
    • Ryuichi Imai
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...