TREA

Yukio Yanaga

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Copolyamide acid and copolyimide
    • Patent number 4,438,256
    • Issue date Mar 20, 1984
    • Mitsubishi Chemical Industries, Limited
    • Takayuki Ohta
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...