TREA

Yoshiki Fujii

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Seal and rotary assembly using the seal
    • Patent number 6,676,132
    • Issue date Jan 13, 2004
    • Kojo Seiko Co., Ltd.
    • Hiroaki Takebayashi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method for processing dynamic pressure groove of fluid dynamic bearing
    • Patent number 6,532,662
    • Issue date Mar 18, 2003
    • Koyo Seiko Co., Ltd.
    • Yasuhiro Kobayashi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Thrust dynamic pressure bearing
    • Patent number 6,371,651
    • Issue date Apr 16, 2002
    • Koyo Seiko Co., Ltd.
    • Yoshiki Fujii
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rolling bearing
    • Patent number 5,516,214
    • Issue date May 14, 1996
    • Koyo Seiko Co., Ltd.
    • Kenichi Kakumoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents