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Hideyuki Yasufuku

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Worm optical recording medium
    • Patent number 8,147,942
    • Issue date Apr 3, 2012
    • Ricoh Company, Ltd.
    • Noboru Sasa
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    WORM OPTICAL RECORDING MEDIUM
    • Publication number 20090197117
    • Publication date Aug 6, 2009
    • Noboru Sasa
    • G11 - INFORMATION STORAGE