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Yukihiro NISHIKAWA

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  • Tokyo, JP
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Patents Applicationslast 30 patents

  • Information Patent Application

    THREADED CONNECTION FOR STEEL PIPE
    • Publication number 20220065371
    • Publication date Mar 3, 2022
    • NIPPON STEEL CORPORATION
    • Masaaki SUGINO
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    THREADED CONNECTION FOR STEEL PIPE
    • Publication number 20160208962
    • Publication date Jul 21, 2016
    • NIPPON STEEL & SUMITOMO METAL CORPORATION
    • Masaaki SUGINO
    • E21 - EARTH DRILLING MINING