TREA

Takahiro Doi

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Socket for pipe coupling
    • Patent number 6,886,804
    • Issue date May 3, 2005
    • Nitto Kohki Co., Ltd.
    • Takahiro Doi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Socket for pipe coupling
    • Publication number 20030151015
    • Publication date Aug 14, 2003
    • Takahiro Doi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...