TREA

Masakatsu Ohta

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Alignment and exposure apparatus
    • Patent number 5,148,214
    • Issue date Sep 15, 1992
    • Canon Kabushiki Kaisha
    • Masakatsu Ohta
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Projection apparatus
    • Patent number 4,998,821
    • Issue date Mar 12, 1991
    • Canon Kabushiki Kaisha
    • Masakatsu Ohta
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Illumination device
    • Patent number 4,988,188
    • Issue date Jan 29, 1991
    • Canon Kabushiki Kaisha
    • Masakatsu Ohta
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Projection exposure apparatus
    • Patent number 4,786,947
    • Issue date Nov 22, 1988
    • Canon Kabushiki Kaisha
    • Masao Kosugi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Illumination apparatus
    • Patent number 4,683,524
    • Issue date Jul 28, 1987
    • Canon Kabushiki Kaisha
    • Masakatsu Ohta
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY