TREA

Masaya Tokai

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Patents Grantslast 30 patents

  • Information Patent Grant

    Permselective membrane
    • Patent number 4,695,383
    • Issue date Sep 22, 1987
    • Toyo Boseki Kabushiki Kaisha
    • Shigeji Konagaya
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...