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Masayuki Ainoya

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  • Ibaraki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Image forming apparatus
    • Patent number 7,010,242
    • Issue date Mar 7, 2006
    • Ricoh Printing Systems, Inc.
    • Takashi Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic apparatus having a paper holding member
    • Patent number 6,640,078
    • Issue date Oct 28, 2003
    • Hitachi Koki Co., Ltd.
    • Kenji Ishii
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Fixing device
    • Patent number D467265
    • Issue date Dec 17, 2002
    • Hitachi Koki Co., Ltd.
    • Takashi Suzuki
    • D18 - Printing and office machinery
  • Information Patent Grant

    Developer bottle
    • Patent number D463818
    • Issue date Oct 1, 2002
    • Hitachi Koki Co., Ltd.
    • Yoshitaka Fujinuma
    • D18 - Printing and office machinery
  • Information Patent Grant

    Toner cartridge
    • Patent number 6,341,210
    • Issue date Jan 22, 2002
    • Hitachi Koki Co., Ltd.
    • Kenji Nozawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Fixing device
    • Patent number 6,285,846
    • Issue date Sep 4, 2001
    • Hitachi Koki Co., Ltd.
    • Takashi Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Imaging forming apparatus having a toner exhausting device
    • Patent number 6,259,883
    • Issue date Jul 10, 2001
    • Hitachi Koki Co., Ltd.
    • Hiroshi Tsunoda
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Toner bottle cap
    • Patent number D441011
    • Issue date Apr 24, 2001
    • Hitachi Koki Co., Ltd.
    • Kenji Nozawa
    • D18 - Printing and office machinery
  • Information Patent Grant

    Photosensitive drum for printer
    • Patent number D438892
    • Issue date Mar 13, 2001
    • Hitachi Koki Co., Ltd.
    • Yuichiro Suzuki
    • D18 - Printing and office machinery
  • Information Patent Grant

    Printer for a computer
    • Patent number D413140
    • Issue date Aug 24, 1999
    • Hitachi Koki Co., Ltd.
    • Hideki Ishida
    • D18 - Printing and office machinery
  • Information Patent Grant

    Image recording apparatus, and sheet conveying method thereof
    • Patent number 5,937,261
    • Issue date Aug 10, 1999
    • Hitachi Koki Co., Ltd.
    • Junji Shirakawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic apparatus
    • Patent number 5,923,933
    • Issue date Jul 13, 1999
    • Hitachi Koki Co., Ltd.
    • Masayasu Anzai
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic printer
    • Patent number 4,943,863
    • Issue date Jul 24, 1990
    • Hitachi Koki Co., Ltd.
    • Masayuki Ainoya
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Sheet path in an electrophotographic printer
    • Patent number 4,929,982
    • Issue date May 29, 1990
    • International Business Machines Corporation
    • Masayuki Ainoya
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Cleaning apparatus for xerographic printing apparatus
    • Patent number 4,475,807
    • Issue date Oct 9, 1984
    • Hitachi Koki Co., Ltd.
    • Motoya Toyoda
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Yoke mechanism of electrophotographic printing apparatus
    • Patent number 4,443,091
    • Issue date Apr 17, 1984
    • Hitachi Koki Co., Ltd.
    • Masayuki Ainoya
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

  • Information Patent Application

    Image forming apparatus
    • Publication number 20040028436
    • Publication date Feb 12, 2004
    • HITACHI PRINTING SOLUTIONS, LTD.
    • Takashi Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    Electrophotographic apparatus
    • Publication number 20010010769
    • Publication date Aug 2, 2001
    • Kenji Ishii
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY