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Suguru Yamaguchi

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Patents Grantslast 30 patents

  • Information Patent Grant

    Threaded joint for steel pipes
    • Patent number 10,774,598
    • Issue date Sep 15, 2020
    • Nippon Steel Corporation
    • Keita Inose
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    THREADED JOINT FOR STEEL PIPES
    • Publication number 20170101830
    • Publication date Apr 13, 2017
    • NIPPON STEEL & SUMITOMO METAL CORPORATION
    • Keita INOSE
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    THREADED JOINT FOR STEEL PIPES
    • Publication number 20110025051
    • Publication date Feb 3, 2011
    • Suguru Yamaguchi
    • E21 - EARTH DRILLING MINING