TREA

Akira Karasawa

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  • Huntingdon Valley, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Xanthine compounds
    • Patent number 5,525,607
    • Issue date Jun 11, 1996
    • Kyowa Hakko Kogyo Co., Ltd.
    • Fumio Suzuki
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Xanthine derivatives
    • Patent number 5,290,782
    • Issue date Mar 1, 1994
    • Kyowa Hakko Kogyo Co., Ltd.
    • Fumio Suzuki
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Condensed purine derivatives
    • Patent number 5,270,316
    • Issue date Dec 14, 1993
    • Kyowa Hakko Kogyo Co., Ltd.
    • Fumio Suzuki
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    s-Triazolo(3,4-I)purine derivatives
    • Patent number 5,173,492
    • Issue date Dec 22, 1992
    • Kyowa Hakko Kogyo Co., Ltd.
    • Fumio Suzuki
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Xanthine derivatives
    • Patent number 5,068,236
    • Issue date Nov 26, 1991
    • Kyowa Hakko Kogyo Co., Ltd.
    • Fumio Suzuki
    • C07 - ORGANIC CHEMISTRY