TREA

Yasuo Hirai

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dry gel composition
    • Patent number 5,556,640
    • Issue date Sep 17, 1996
    • Showa Yakuhin Kako Co., Ltd
    • Yoji Ito
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Dry gel composition
    • Patent number 5,496,563
    • Issue date Mar 5, 1996
    • Showa Yakuhin Kako Co., Ltd
    • Yoji Ito
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE