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Katsuichi Machida

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  • Fukushima, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Near-infrared-absorbing composition and optical material
    • Patent number 7,067,074
    • Issue date Jun 27, 2006
    • Kureha Corporation
    • Tsukasa Ikeda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Building material
    • Patent number 7,053,231
    • Issue date May 30, 2006
    • Kureha Chemical Industry Company, Ltd.
    • Naoki Hayashi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Optical filter and process for producing the same
    • Patent number 7,025,908
    • Issue date Apr 11, 2006
    • Kureha Corporation
    • Naoki Hayashi
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical material
    • Patent number 6,562,992
    • Issue date May 13, 2003
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Naoki Hayashi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Spirooxazine photochromic compounds
    • Patent number 5,017,698
    • Issue date May 21, 1991
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Katsuichi Machida
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Photochromic lens
    • Patent number 4,756,973
    • Issue date Jul 12, 1988
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Teruo Sakagami
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

  • Information Patent Application

    Building Material
    • Publication number 20040204600
    • Publication date Oct 14, 2004
    • KUREHA CHEMICAL INDUSTRY COMPANY, Limited
    • Naoki Hayashi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Near-infrared-absorbing composition and optical material
    • Publication number 20030160217
    • Publication date Aug 28, 2003
    • Tsukasa Ikeda
    • G02 - OPTICS
  • Information Patent Application

    Optical material
    • Publication number 20020050587
    • Publication date May 2, 2002
    • KUREHA KAGAKU KOGYO KABUSHIKI KAISHA
    • Naoki Hayashi
    • C07 - ORGANIC CHEMISTRY