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Hirofumi Matsui

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drive circuit and display device
    • Patent number 8,587,573
    • Issue date Nov 19, 2013
    • Sharp Kabushiki Kaisha
    • Toshio Watanabe
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Electronic circuit apparatus
    • Patent number 7,154,427
    • Issue date Dec 26, 2006
    • Sharp Kabushiki Kaisha
    • Hirofumi Matsui
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    D/A converter circuit, and portable terminal device and audio devic...
    • Patent number 6,778,120
    • Issue date Aug 17, 2004
    • Sharp Kabushiki Kaisha
    • Hirofumi Matsui
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Encoding apparatus
    • Patent number 5,878,171
    • Issue date Mar 2, 1999
    • Sharp Kabushiki Kaisha
    • Masayuki Miyamoto
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Image compressing apparatus
    • Patent number 5,845,016
    • Issue date Dec 1, 1998
    • Sharp Kabushiki Kaisha
    • Hirofumi Matsui
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Input detector
    • Patent number 5,818,267
    • Issue date Oct 6, 1998
    • Sharp Kabushiki Kaisha
    • Mitsuhiko Fujio
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Inner product calculation device
    • Patent number 5,796,647
    • Issue date Aug 18, 1998
    • Sharp Kabushiki Kaisha
    • Kunihiko Iizuka
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Winner-take-all circuit
    • Patent number 5,703,503
    • Issue date Dec 30, 1997
    • Sharp Kabushiki Kaisha
    • Masayuki Miyamoto
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents