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Toshiyuki Kawashima

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Illumination device and display device
    • Patent number 7,888,623
    • Issue date Feb 15, 2011
    • Sony Corporation
    • Toshiyuki Kawashima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Indicator
    • Patent number 5,774,098
    • Issue date Jun 30, 1998
    • Sony Corporation
    • Toshiyuki Kawashima
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents