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Kazuo Rokkaku

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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of manufacturing power transmission chain and pretension loa...
    • Patent number 7,882,689
    • Issue date Feb 8, 2011
    • JTEKT Corporation
    • Seiji Tada
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Toroidal type continuously variable transmission
    • Patent number 6,402,658
    • Issue date Jun 11, 2002
    • Koyo Seiko Co., Ltd.
    • Shinji Yasuhara
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Full type ball bearing for turbochargers
    • Patent number 5,228,786
    • Issue date Jul 20, 1993
    • Koyo Seiko Co., Ltd.
    • Kiyoshi Tanimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Traction drive tool adapter
    • Patent number 5,033,921
    • Issue date Jul 23, 1991
    • Koyo Seiko Co., Ltd.
    • Shinji Yasuhara
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Traction drive spindle device
    • Patent number 4,960,405
    • Issue date Oct 2, 1990
    • Koyo Seiko Co., Ltd.
    • Eiichi Katayama
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Attaching structure for ceramics bearing
    • Patent number 4,808,014
    • Issue date Feb 28, 1989
    • Koyo Seiko Co., Ltd.
    • Kouichi Ueda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ceramic bearing construction
    • Patent number 4,792,244
    • Issue date Dec 20, 1988
    • Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    • Yuko Yamashita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ceramics bearing
    • Patent number 4,770,549
    • Issue date Sep 13, 1988
    • Koyo Seiko Co., Ltd.
    • Kazuo Rokkaku
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents