TREA

Yoshikuni Tohyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Image forming apparatus comprising a plurality of developing devices
    • Patent number 4,916,490
    • Issue date Apr 10, 1990
    • Canon Kabushiki Kaisha
    • Hidetoshi Tanaka
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Double-side image forming apparatus
    • Patent number 4,845,528
    • Issue date Jul 4, 1989
    • Canon Kabushiki Kaisha
    • Tomohiro Aoki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic apparatus for making superposed images
    • Patent number 4,803,520
    • Issue date Feb 7, 1989
    • Canon Kabushiki Kaisha
    • Masahiro Tomosada
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Transfer station alignment device
    • Patent number 4,544,262
    • Issue date Oct 1, 1985
    • Canon Kabushiki Kaisha
    • Shinji Kanemitsu
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Scanning type image formation apparatus
    • Patent number 4,402,595
    • Issue date Sep 6, 1983
    • Canon Kabushiki Kaisha
    • Hiroshi Ogawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Slit exposure device with white reflecting member
    • Patent number 4,375,331
    • Issue date Mar 1, 1983
    • Canon Kabushiki Kaisha
    • Yoshikuni Tohyama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Copy magnification modifying apparatus
    • Patent number 4,323,308
    • Issue date Apr 6, 1982
    • Canon Kabushiki Kaisha
    • Tadayuki Kitajima
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Printing apparatus
    • Patent number 4,302,098
    • Issue date Nov 24, 1981
    • Canon Kabushiki Kaisha
    • Yasuhito Kan
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image forming apparatus
    • Patent number 4,243,311
    • Issue date Jan 6, 1981
    • Canon Kabushiki Kaisha
    • Yoshikuni Tohyama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Cleaning device
    • Patent number 4,218,131
    • Issue date Aug 19, 1980
    • Canon Kabushiki Kaisha
    • Yoshio Ito
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developer housing sealing device for electrophotography
    • Patent number 4,168,901
    • Issue date Sep 25, 1979
    • Canon Kabushiki Kaisha
    • Yoshio Ito
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Separator device for transfer medium
    • Patent number 4,163,549
    • Issue date Aug 7, 1979
    • Canon Kabushiki Kaisha
    • Yoshio Ito
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Variable magnification copying apparatus
    • Patent number 4,129,377
    • Issue date Dec 12, 1978
    • Canon Kabushiki Kaisha
    • Koichi Miyamoto
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY