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Masahiro Shirai

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Image reading apparatus and media conveying apparatus
    • Patent number 8,705,150
    • Issue date Apr 22, 2014
    • Canon Denshi Kabushiki Kaisha
    • Masahiro Shirai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Image reading apparatus, shading correction method therefor, and pr...
    • Patent number 8,570,611
    • Issue date Oct 29, 2013
    • Canon Denshi Kabushiki Kaisha
    • Jun Tanaka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Image reading apparatus, shading correction method therefor, and pr...
    • Patent number 8,335,021
    • Issue date Dec 18, 2012
    • Canon Denshi Kabushiki Kaisha
    • Jun Tanaka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Scanner
    • Patent number D574829
    • Issue date Aug 12, 2008
    • Canon Denshi Kabushiki Kaisha
    • Masahiro Shirai
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Document scanner
    • Patent number D542292
    • Issue date May 8, 2007
    • Canon Denshi Kabushiki Kaisha
    • Teruhiko Kitamura
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Image reading apparatus
    • Patent number 7,170,658
    • Issue date Jan 30, 2007
    • Canon Kabushiki Kaisha
    • Masahiro Shirai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Image reading apparatus
    • Patent number 7,151,621
    • Issue date Dec 19, 2006
    • Canon Denshi Kabushiki Kaisha
    • Masahiro Shirai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sheet feeding apparatus and image forming apparatus and image readi...
    • Patent number 6,869,070
    • Issue date Mar 22, 2005
    • Canon Kabushiki Kaisha
    • Masashi Shimamura
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Image reading apparatus
    • Patent number 6,661,540
    • Issue date Dec 9, 2003
    • Canon Denshi Kabushiki Kaisha
    • Youji Hasegawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Document scanner
    • Patent number D478594
    • Issue date Aug 19, 2003
    • Canon Denshi Kabushiki Kaisha
    • Hiroyuki Ichiyoshi
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Printing apparatus
    • Patent number 6,328,394
    • Issue date Dec 11, 2001
    • Canon Denshi Kabushiki Kaisha
    • Masahiro Shirai
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents