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Masamichi Shibata

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  • Mie-ken, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for manufacturing a bearing raceway member
    • Patent number 7,685,717
    • Issue date Mar 30, 2010
    • JTEKT Corporation
    • Masamichi Shibata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Roller bearing and a method of producing the same
    • Patent number 6,318,897
    • Issue date Nov 20, 2001
    • Koyo Seiko Co., Ltd.
    • Kenji Shitsukawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Roller bearing
    • Patent number 6,254,277
    • Issue date Jul 3, 2001
    • Koyo Seiko Co., Ltd.
    • Yasuaki Nagai
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    High carbon chromium bearing steel
    • Patent number 4,911,885
    • Issue date Mar 27, 1990
    • Koyo Seiko Co., Ltd.
    • Yoshiaki Hyodo
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents