TREA

Ryoji MURAKI

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mechanical seal device
    • Patent number 9,574,667
    • Issue date Feb 21, 2017
    • EAGLE BURGMANN JAPAN CO., LTD.
    • Hidekazu Takahashi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Shaft seal device
    • Patent number 6,454,268
    • Issue date Sep 24, 2002
    • Eagle Industry Co., Ltd.
    • Ryoji Muraki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rotary ring and mechanical seal using the same
    • Patent number 6,425,583
    • Issue date Jul 30, 2002
    • Eagle Industry Company, Limited
    • Ryoji Muraki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    MECHANICAL SEAL DEVICE
    • Publication number 20160003361
    • Publication date Jan 7, 2016
    • EAGLE BURGMANN JAPAN CO., LTD.
    • Hidekazu TAKAHASHI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Shaft seal device
    • Publication number 20020109302
    • Publication date Aug 15, 2002
    • EAGLE INDUSTRY CO., LTD.
    • Ryoji Muraki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...