TREA

Yasoji Ozawa

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  • Machida, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Water repellent and water repellent gypsum composition
    • Patent number 5,098,943
    • Issue date Mar 24, 1992
    • Mitsubishi Kasei Corporation
    • Toru Tagawa
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Water repellent composition
    • Patent number 4,748,196
    • Issue date May 31, 1988
    • Mitsubishi Chemical Industries, Ltd.
    • Katsuhiko Kuroda
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE