TREA

Katsuhiro Maruyama

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  • Takasaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for preparing polymer compound for resist
    • Patent number 6,653,418
    • Issue date Nov 25, 2003
    • Gun EI Chemical Industry Co., Ltd.
    • Katsuhiro Maruyama
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Novolak type phenol resin
    • Patent number 6,242,533
    • Issue date Jun 5, 2001
    • Gun Ei Chemical Industry Co., LTD
    • Yoshiaki Kurimoto
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Phenol resin
    • Patent number 6,211,328
    • Issue date Apr 3, 2001
    • Gun Ei Chemical Industry Co., LTD
    • Yoshiaki Kurimoto
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...