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Ryuzo Osawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyaniline
    • Patent number 4,904,553
    • Issue date Feb 27, 1990
    • Bridgestone Corporation
    • Tadashi Nakajima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...