TREA

Kazumi Hasegawa

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  • Kurashiki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for producing aromatic polycarbonate
    • Patent number 6,320,015
    • Issue date Nov 20, 2001
    • Asahi Kasei Kabushiki Kaisha
    • Kyosuke Komiya
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method for producing an aromatic polycarbonate
    • Patent number 6,037,437
    • Issue date Mar 14, 2000
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Kyosuke Komiya
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method for producing an aromatic polycarbonate
    • Patent number 5,952,449
    • Issue date Sep 14, 1999
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Muneaki Aminaka
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method for producing an aromatic polycarbonate
    • Patent number 5,912,318
    • Issue date Jun 15, 1999
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Kazumi Hasegawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...