TREA

Hiroshi Takatsuji

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  • Tokyo-to, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Input pen for touch panel, and input pen
    • Patent number 6,710,267
    • Issue date Mar 23, 2004
    • International Business Machines Corporation
    • Yoshifumi Natsuyama
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Input pen for touch panel, and input pen
    • Publication number 20010028345
    • Publication date Oct 11, 2001
    • International Business Machines Corporation
    • Yoshifumi Natsuyama
    • G06 - COMPUTING CALCULATING COUNTING