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Tomotika Yoshitsugi

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  • Osaka, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRET COARSE POWDER
    • Publication number 20130170015
    • Publication date Jul 4, 2013
    • SAKURA COLOR PRODUCTS CORPORATION
    • Tomotika Yoshitsugi
    • G02 - OPTICS
  • Information Patent Application

    PROCESS FOR PRODUCING ELECTRET COARSE POWDER
    • Publication number 20110198224
    • Publication date Aug 18, 2011
    • SAKURA COLOR PRODUCTS CORPORATION
    • Tomotika Yoshitsugi
    • G02 - OPTICS