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Yoshio Yuasa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Photometric apparatus
    • Patent number 6,900,886
    • Issue date May 31, 2005
    • Minolta Co., Ltd.
    • Yoshio Yuasa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Exposure meter
    • Patent number 6,714,293
    • Issue date Mar 30, 2004
    • Minolta Co., Ltd.
    • Yasushi Goto
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Light measuring device
    • Patent number 4,994,845
    • Issue date Feb 19, 1991
    • Minolta Camera Kabushiki Kaisha
    • Kazuhiko Naruse
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Light measuring device
    • Patent number 4,914,468
    • Issue date Apr 3, 1990
    • Kazuhiko Naruse
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Electronic flash device
    • Patent number 4,717,861
    • Issue date Jan 5, 1988
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Enlarger for use in photography
    • Patent number 4,704,025
    • Issue date Nov 3, 1987
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Light measuring device for flash photography
    • Patent number RE32437
    • Issue date Jun 9, 1987
    • Minolta Camera Kabushiki Kaisha
    • Nobuyuki Taniguchi
    • 354 -
  • Information Patent Grant

    Light measuring device
    • Patent number 4,655,576
    • Issue date Apr 7, 1987
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Light measuring device
    • Patent number 4,637,721
    • Issue date Jan 20, 1987
    • Minolta Camera Kabushiki Kaisha
    • Kazuhiko Naruse
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electronic flash device
    • Patent number 4,608,522
    • Issue date Aug 26, 1986
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Exposure determining device for an enlarger
    • Patent number 4,601,571
    • Issue date Jul 22, 1986
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Enlarger for use in photography
    • Patent number 4,576,470
    • Issue date Mar 18, 1986
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Color enlarger
    • Patent number 4,575,225
    • Issue date Mar 11, 1986
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Light source for exposure
    • Patent number 4,551,011
    • Issue date Nov 5, 1985
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Automatic focusing device for an enlarger
    • Patent number 4,531,830
    • Issue date Jul 30, 1985
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Exposure control device for a photographic enlarger
    • Patent number 4,518,250
    • Issue date May 21, 1985
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electronic flash device
    • Patent number 4,485,336
    • Issue date Nov 27, 1984
    • Minolta Camera Kabushiki Kaisha
    • Ichiro Yoshiyama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Key switch input control circuit
    • Patent number 4,482,978
    • Issue date Nov 13, 1984
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Light measurement and light control data calculation device for a p...
    • Patent number 4,469,437
    • Issue date Sep 4, 1984
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Light measuring device
    • Patent number 4,465,370
    • Issue date Aug 14, 1984
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    System and method for calculating a light information value
    • Patent number 4,465,354
    • Issue date Aug 14, 1984
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Exposure indicator
    • Patent number 4,449,822
    • Issue date May 22, 1984
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Exposure aiding device for an enlarger
    • Patent number 4,440,489
    • Issue date Apr 3, 1984
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Colorimeter
    • Patent number 4,402,611
    • Issue date Sep 6, 1983
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Light measuring device
    • Patent number 4,401,386
    • Issue date Aug 30, 1983
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Photographic light measuring device
    • Patent number 4,397,533
    • Issue date Aug 9, 1983
    • Minolta Camera Kabushiki Kaisha
    • Kazuhiko Naruse
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photographic spot measuring apparatus
    • Patent number 4,397,553
    • Issue date Aug 9, 1983
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Color meter
    • Patent number 4,389,118
    • Issue date Jun 21, 1983
    • Minolta Camera Kabushiki Kaisha
    • Yoshio Yuasa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Light measuring device for flash photography
    • Patent number 4,373,793
    • Issue date Feb 15, 1983
    • Minolta Camera Co., Ltd.
    • Nobuyuki Taniguchi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Exposure control system
    • Patent number 4,367,932
    • Issue date Jan 11, 1983
    • Minolta Camera Kabushiki Kaisha
    • Norio Ishikawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents