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Sei WAKATSUKA

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  • Fuji-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyarylene sulfide resin composition and coated molding
    • Patent number 7,442,744
    • Issue date Oct 28, 2008
    • Polyplastics Co., Ltd.
    • Kazutomo Tokushige
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Composite polyacetal article
    • Patent number 5,374,485
    • Issue date Dec 20, 1994
    • Polyplastics Co., Ltd.
    • Sei Wakatsuka
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents