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Masako Hirose

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Information distribution system
    • Patent number 7,403,990
    • Issue date Jul 22, 2008
    • Ricoh Company, Ltd.
    • Yoko Nishiyama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Information distribution system
    • Publication number 20030233441
    • Publication date Dec 18, 2003
    • Yoko Nishiyama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE