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Takeo Ogihara

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  • Iwaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of absorbing rays outside a visible region
    • Patent number 6,180,224
    • Issue date Jan 30, 2001
    • Nissan Chemical Industries, Ltd.
    • Masuhiro Shouji
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Polymeric optical low-pass filter and device thereof
    • Patent number 5,820,779
    • Issue date Oct 13, 1998
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Masuhiro Shouji
    • G02 - OPTICS
  • Information Patent Grant

    Production process of composite optical filter
    • Patent number 5,793,544
    • Issue date Aug 11, 1998
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Takeo Ogihara
    • G02 - OPTICS
  • Information Patent Grant

    Plastic optical material
    • Patent number 5,759,448
    • Issue date Jun 2, 1998
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Hiroki Katono
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Infrared-blocking optical fiber
    • Patent number 5,691,838
    • Issue date Nov 25, 1997
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Masuhiro Shouji
    • G02 - OPTICS
  • Information Patent Grant

    Plastic optical material and production process thereof
    • Patent number 5,672,655
    • Issue date Sep 30, 1997
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Hiroki Katono
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Plastic optical filter
    • Patent number 5,611,965
    • Issue date Mar 18, 1997
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Masuhiro Shouji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing an optical filter
    • Patent number 5,567,778
    • Issue date Oct 22, 1996
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Teruo Sakagami
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polycarbonate resin composition and molded product thereof
    • Patent number 5,516,842
    • Issue date May 14, 1996
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Mitsuru Hoshino
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Optical filter
    • Patent number 5,466,755
    • Issue date Nov 14, 1995
    • Kureha, Kagaku Kogyo Kabushiki Kaisha
    • Teruo Sakagami
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Multiply grafted antistatic resin composition
    • Patent number 4,332,919
    • Issue date Jun 1, 1982
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Akio Kobayashi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...