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Isamu Masumoto

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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyoxymethylene copolymer and molded article thereof
    • Patent number 6,617,416
    • Issue date Sep 9, 2003
    • Mitsubishi Gas Chemical Company, Inc.
    • Takahiro Nakamura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Production process of polyphenylene ether
    • Patent number 6,586,567
    • Issue date Jul 1, 2003
    • Mitsubishi Gas Chemical Company Inc
    • Yuji Takeda
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing oxymethylene copolymer
    • Patent number 6,433,128
    • Issue date Aug 13, 2002
    • Mitsubishi Gas Chemical Co, Inc.
    • Takahiro Nakamura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Acetal resin composition containing a terminal-etherified polyalkyl...
    • Patent number 5,187,218
    • Issue date Feb 16, 1993
    • Mitsubishi Gas Chemical Company, Inc.
    • Isamu Masumoto
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method of stabilizing polyoxymethylene copolymer
    • Patent number 4,814,424
    • Issue date Mar 21, 1989
    • Mitsubishi Gas Chemical Company, Inc.
    • Takeo Suzumori
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing oxymethylene copolyer
    • Patent number 4,681,927
    • Issue date Jul 21, 1987
    • Mitsubishi Gas Chemical Company, Inc.
    • Toshikazu Umemura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for heat stabilizing oxymethylene copolymers
    • Patent number 4,366,305
    • Issue date Dec 28, 1982
    • Mitsubishi Gas Chemical Company, Inc.
    • Akira Amemiya
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method for recovering polyphenylene oxides
    • Patent number 4,246,398
    • Issue date Jan 20, 1981
    • Mitsubishi Gas Chemical Company, Inc.
    • Akitoshi Sugio
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents