TREA

Kiyonobu Okamura

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  • Hiroshima, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Porous membrane and production process thereof
    • Patent number 5,057,218
    • Issue date Oct 15, 1991
    • Mitsubishi Rayon Co., Ltd.
    • Toshinobu Koshoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Porous polyethylene fibers
    • Patent number 5,043,216
    • Issue date Aug 27, 1991
    • Mitsubishi Rayon Co., Ltd.
    • Kunio Misoo
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Porous polyethylene film
    • Patent number 4,384,023
    • Issue date May 17, 1983
    • Mitsubishi Rayon Company, Limited
    • Kiyonobu Okamura
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Suede-like sheet materials of ultrafine fibers
    • Patent number 4,368,227
    • Issue date Jan 11, 1983
    • Mitsubishi Rayon Company, Limited
    • Takashi Setsuie
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Suede-like sheet materials and method of producing the same
    • Patent number 4,147,574
    • Issue date Apr 3, 1979
    • Mitsubishi Rayon Company, Limited
    • Takashi Setsuie
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS