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Hitoshi Muroi

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Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe joint
    • Patent number 12,066,132
    • Issue date Aug 20, 2024
    • Tozen Corporation
    • Hitoshi Muroi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe joint
    • Patent number 6,880,861
    • Issue date Apr 19, 2005
    • Tozen Corporation
    • Akira Muroi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    PIPE JOINT
    • Publication number 20230061916
    • Publication date Mar 2, 2023
    • TOZEN Corporation
    • Hitoshi MUROI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Pipe joint
    • Publication number 20050006895
    • Publication date Jan 13, 2005
    • Akira Muroi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...