TREA

Masaaki Ashizawa

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vibration damping material
    • Patent number 5,300,355
    • Issue date Apr 5, 1994
    • Nichias Corporation
    • Naoto Mifune
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Rubber-coated gasket material
    • Patent number 5,004,650
    • Issue date Apr 2, 1991
    • Nichias Corporation
    • Masaaki Ashizawa
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Rubber-coated gasket
    • Patent number 4,956,226
    • Issue date Sep 11, 1990
    • Nichias Corporation
    • Masaaki Ashizawa
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Vortex gasket with composition for high-temperature and high-pressu...
    • Patent number 4,629,199
    • Issue date Dec 16, 1986
    • Nichias Corporation
    • Tsutomu Yamamoto
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Gasket sheet
    • Patent number 4,546,033
    • Issue date Oct 8, 1985
    • Nichias Corporation
    • Yasushi Tsuchimoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Heat-resistant sheet gasket
    • Patent number 4,485,138
    • Issue date Nov 27, 1984
    • Nichias Corporation
    • Tsutomu Yamamoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gasket and method for high-temperature and high pressure application
    • Patent number 4,477,094
    • Issue date Oct 16, 1984
    • Nichias Corporation
    • Tsutomu Yamamoto
    • B32 - LAYERED PRODUCTS