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Katsuto Tanaka

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Real-image variable-magnification viewfinder
    • Patent number 6,711,356
    • Issue date Mar 23, 2004
    • Minolta Co., Ltd.
    • Katsuto Tanaka
    • G02 - OPTICS
  • Information Patent Grant

    Optical component
    • Patent number 6,493,144
    • Issue date Dec 10, 2002
    • Minolta Co., Ltd.
    • Katsuto Tanaka
    • G02 - OPTICS
  • Information Patent Grant

    Roof prism
    • Patent number 5,946,147
    • Issue date Aug 31, 1999
    • Minolta Co., Ltd.
    • Katsuto Tanaka
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Camera
    • Patent number 5,903,788
    • Issue date May 11, 1999
    • Minolta Co., Ltd.
    • Hiromu Mukai
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Zoom finder optical system
    • Patent number 5,861,986
    • Issue date Jan 19, 1999
    • Minolta Co., Ltd.
    • Katsuto Tanaka
    • G02 - OPTICS
  • Information Patent Grant

    Compact high-zoom-ratio real-image finder
    • Patent number 5,627,618
    • Issue date May 6, 1997
    • Minolta Camera Kabushiki Kaisha
    • Ichiro Kasai
    • G02 - OPTICS

Patents Applicationslast 30 patents