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Issei Otsuka

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  • Niihari, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyprenyl Compounds
    • Patent number 4,883,916
    • Issue date Nov 28, 1989
    • Eisai Co., Ltd.
    • Kouji Nakamoto
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Polyprenyl compounds
    • Patent number 4,788,330
    • Issue date Nov 29, 1988
    • Eisai Co., Ltd.
    • Kouji Nakamoto
    • C07 - ORGANIC CHEMISTRY