TREA

Tohei Yamamoto

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Patents Grantslast 30 patents

  • Information Patent Grant

    Vinyl alcohol polymer
    • Patent number 5,187,226
    • Issue date Feb 16, 1993
    • Kuraray Co., Ltd.
    • Mikiharu Kamachi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...