TREA

Ryo Tsumura

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Toner production method
    • Patent number 10,386,739
    • Issue date Aug 20, 2019
    • Zeon Corporation
    • Ryo Tsumura
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

  • Information Patent Application

    POSITIVELY-CHARGEABLE BLACK TONER
    • Publication number 20190041764
    • Publication date Feb 7, 2019
    • Zeon Corporation
    • Ryo Tsumura
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    TONER PRODUCTION METHOD
    • Publication number 20180292764
    • Publication date Oct 11, 2018
    • Zeon Corporation
    • Ryo Tsumura
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY