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Kohei OOYA

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  • Ube-shi, Yamaguchi, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Method for Purifying Fluorine Compound Gas
    • Publication number 20190046917
    • Publication date Feb 14, 2019
    • Central Glass Company, Limited
    • Akifumi YAO
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Method for Purifying Fluorine Gas
    • Publication number 20190047858
    • Publication date Feb 14, 2019
    • Central Glass Company, Limited
    • Akifumi YAO
    • H01 - BASIC ELECTRIC ELEMENTS