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Ryuichi Kurita

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  • Iwaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mullite-alumina composite sintered body and process for producing t...
    • Patent number 4,960,738
    • Issue date Oct 2, 1990
    • Kureha Chemical Industry Co., Ltd.
    • Saburo Hori
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Alumina-zirconia ceramic powders and a method of making the same
    • Patent number 4,665,040
    • Issue date May 12, 1987
    • Kureha Chemical Industry Co., Ltd.
    • Ryuichi Kurita
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Phosphate-free detergent composition
    • Patent number 4,349,447
    • Issue date Sep 14, 1982
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Tatsuhiko Noguchi
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Detergent composition
    • Patent number 4,305,836
    • Issue date Dec 15, 1981
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Tatsuhiko Noguchi
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Sand mold composition
    • Patent number 4,174,224
    • Issue date Nov 13, 1979
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Sigeru Seki
    • B22 - CASTING POWDER METALLURGY