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Toshiyuki Ishii

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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyolefin stretch film
    • Patent number 6,353,067
    • Issue date Mar 5, 2002
    • Mitsui Chemicals, Inc.
    • Masao Kameyama
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Porous film and preparation process thereof
    • Patent number 5,945,210
    • Issue date Aug 31, 1999
    • Mitsui Chemicals, Inc.
    • Katsumi Senba
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Light reflective sheet and light reflector using it
    • Patent number 5,710,856
    • Issue date Jan 20, 1998
    • Mitsui Toatsu Chemicals, Inc.
    • Toshiyuki Ishii
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Method for preparing perforated film
    • Patent number 4,978,486
    • Issue date Dec 18, 1990
    • Mitsui Toatsu Chemicals, Incorporated
    • Michiyasu Ito
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of forming a porous polyolefin film
    • Patent number 4,921,653
    • Issue date May 1, 1990
    • Mitsui Toatsu Chemicals, Inc.
    • Mari Aoyama
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Preparation of gas permeable porous film
    • Patent number 4,814,124
    • Issue date Mar 21, 1989
    • Mitsui Toatsu Chemicals Inc.
    • Mari Aoyama
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL