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Keijiro Ishii

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microfilm camera
    • Patent number 5,202,724
    • Issue date Apr 13, 1993
    • Minolta Camera Kabushiki Kaisha
    • Koichi Nagata
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Cartridge handling device for microfilm reader or the like
    • Patent number 4,453,682
    • Issue date Jun 12, 1984
    • Minolta Camera Kabushiki Kaisha
    • Keijiro Ishii
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY