TREA

Hisashi Yasui

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Metal laminate gasket with engaging device having curved edges
    • Patent number 5,513,855
    • Issue date May 7, 1996
    • Ishikawa Gasket Co., Ltd.
    • Hisashi Yasui
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Protecting member for a gasket
    • Patent number 5,375,856
    • Issue date Dec 27, 1994
    • Ishikawa Gasket Co., Ltd.
    • Itsuo Ishikawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gasket with a fluid hole regulation device
    • Patent number 5,022,662
    • Issue date Jun 11, 1991
    • Ishikawa Gaset Co., Ltd.
    • Hisashi Yasui
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Gasket with a fluid hole regulation device
    • Patent number 5,000,464
    • Issue date Mar 19, 1991
    • Ishikawa Gasket Co., Ltd.
    • Hisashi Yasui
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS