TREA

Koji Akiyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tandem seal device
    • Patent number 8,585,060
    • Issue date Nov 19, 2013
    • Eagle Industry Co., Ltd.
    • Yoji Oshii
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Shaft sealing device
    • Patent number 8,186,688
    • Issue date May 29, 2012
    • Eagle Industry Co., Ltd.
    • Koji Akiyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Mechanical seal device
    • Patent number 7,744,094
    • Issue date Jun 29, 2010
    • Eagle Industry Co., Ltd.
    • Takashi Yanagisawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    SHAFT SEALING DEVICE
    • Publication number 20100327533
    • Publication date Dec 30, 2010
    • EAGLE INDUSTRY CO., LTD.
    • Koji Akiyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MECHANICAL SEAL DEVICE AND TANDEM SEAL DEVICE
    • Publication number 20100270749
    • Publication date Oct 28, 2010
    • EAGLE INDUSTRY CO., LTD.
    • Yoji Oshii
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Mechanical Seal Device
    • Publication number 20070296156
    • Publication date Dec 27, 2007
    • Takashi Yanagisawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...