TREA

Norio Hamba

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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of producing a metal gasket
    • Patent number 5,032,430
    • Issue date Jul 16, 1991
    • Nippon Leakless Industry Co., Ltd.
    • Tsunehiko Abe
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Metal gasket
    • Patent number 4,968,045
    • Issue date Nov 6, 1990
    • Nippon Leakless Industry Co., Ltd.
    • Tsunehiko Abe
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...