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Shigeaki Yoshida

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  • Sayama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Graphic processing system
    • Patent number 6,697,070
    • Issue date Feb 24, 2004
    • Renesas Technology Corporation
    • Koyo Katsura
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Graphic processing system for displaying characters and pictures at...
    • Patent number 6,538,653
    • Issue date Mar 25, 2003
    • Hitachi, Ltd.
    • Koyo Katsura
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Graphic processing system
    • Patent number 5,751,930
    • Issue date May 12, 1998
    • Hitachi, Ltd.
    • Koyo Katsura
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Display control device
    • Patent number 5,610,622
    • Issue date Mar 11, 1997
    • Hitachi, Ltd.
    • Hiroshi Takeda
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Display control device
    • Patent number 5,606,338
    • Issue date Feb 25, 1997
    • Hitachi, Ltd.
    • Hiroshi Takeda
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Graphic processing system for displaying characters and pictures at...
    • Patent number 4,947,342
    • Issue date Aug 7, 1990
    • Hitachi, Ltd.
    • Koyo Katsura
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Display control device
    • Patent number 4,904,990
    • Issue date Feb 27, 1990
    • Hitachi, Ltd.
    • Hiroshi Takeda
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Display control device
    • Patent number 4,720,708
    • Issue date Jan 19, 1988
    • Hitachi, Ltd.
    • Hiroshi Takeda
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS