TREA

Kazuhiro Kawasugi

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  • Oome, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Display driving device
    • Patent number 5,852,428
    • Issue date Dec 22, 1998
    • Casio Computer Co., Ltd.
    • Ryo Ishikawa
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Display driving device
    • Patent number 5,703,616
    • Issue date Dec 30, 1997
    • Casio Computer Co., Ltd.
    • Kazuhiro Kawasugi
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Display driving device
    • Patent number 5,663,745
    • Issue date Sep 2, 1997
    • Casio Computer Co., Ltd.
    • Ryo Ishikawa
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS