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Haruki Isaka

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  • Iwaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for producing rubber-based graft copolymers
    • Patent number 4,897,462
    • Issue date Jan 30, 1990
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Haruhiko Yusa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Vinyl chloride resin composition
    • Patent number 4,345,043
    • Issue date Aug 17, 1982
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Haruhiko Yusa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...