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Hiroyasu Tomii

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  • Kawaguchi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cardan-type universal joint
    • Patent number 5,324,235
    • Issue date Jun 28, 1994
    • Nippon Piston Ring Co., Ltd.
    • Hiroyasu Tomii
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Universal joint
    • Patent number 5,062,730
    • Issue date Nov 5, 1991
    • Nippon Piston Ring Co., Ltd.
    • Hiroyasu Tomii
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...