TREA

Akira Itsubo

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  • Ibaraki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrophotographic receptor
    • Patent number 5,344,733
    • Issue date Sep 6, 1994
    • Mitsubishi Petrochemical Co., Ltd.
    • Shinichi Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photoconductive phthalocyanine composition
    • Patent number 5,283,146
    • Issue date Feb 1, 1994
    • Mitsubishi Petrochemical Co., Ltd.
    • Toyoshi Ohashi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photoconductive mixed crystals of phthalocyanine compounds and proc...
    • Patent number 4,981,767
    • Issue date Jan 1, 1991
    • Mitsubishi Petrochemical Co., Ltd.
    • Yoshinori Tokura
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Process for producing molecular orientated film
    • Patent number 4,863,763
    • Issue date Sep 5, 1989
    • Mitsubishi Petrochemical Co., Ltd.
    • Kenji Takeda
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Vibration-damping composite metal plate
    • Patent number 4,740,427
    • Issue date Apr 26, 1988
    • Nippon Kokan Kabushiki Kaisha
    • Masahide Ochiumi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Electrode material
    • Patent number 4,725,422
    • Issue date Feb 16, 1988
    • Mitsubishi Petrochemical Co., Ltd.
    • Mitsutaka Miyabayashi
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Secondary battery using non-aqueous solvent
    • Patent number 4,702,977
    • Issue date Oct 27, 1987
    • Toshiba Battery Co., Ltd.
    • Kazuya Hiratsuka
    • H01 - BASIC ELECTRIC ELEMENTS