TREA

Heiichi Unozawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dynamic pressure bearing and rotation machine employing same
    • Patent number 8,007,176
    • Issue date Aug 30, 2011
    • Ferrotec Corporation
    • Akira Yamamura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ferrofluid sealing device
    • Patent number 6,305,694
    • Issue date Oct 23, 2001
    • Ferrotec Corporation
    • Noboru Yamazumi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing apparatus
    • Patent number 6,290,233
    • Issue date Sep 18, 2001
    • Akira Yamamura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents