TREA

Kenji Ishizuki

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Focus state detecting device
    • Patent number 5,029,998
    • Issue date Jul 9, 1991
    • Nikon Corporation
    • Ken Utagawa
    • G02 - OPTICS
  • Information Patent Grant

    Auto focusing light device
    • Patent number 4,804,991
    • Issue date Feb 14, 1989
    • Nikon Corporation
    • Kenji Ishizuki
    • G02 - OPTICS
  • Information Patent Grant

    Auto-focus camera
    • Patent number 4,796,044
    • Issue date Jan 3, 1989
    • Nikon Corporation
    • Tatuo Amanuma
    • G02 - OPTICS
  • Information Patent Grant

    Exposure control device for camera
    • Patent number 4,685,786
    • Issue date Aug 11, 1987
    • Nippon Kogaku K.K.
    • Yoshikazu Iida
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Motor drive unit for camera
    • Patent number 4,457,606
    • Issue date Jul 3, 1984
    • Nippon Kogaku K.K.
    • Kenji Ishizuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY