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Kenji Yamada

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Patents Grantslast 30 patents

  • Information Patent Grant

    Relay zoom system
    • Patent number 8,797,646
    • Issue date Aug 5, 2014
    • Nikon Vision Co., Ltd.
    • Kenji Yamada
    • G02 - OPTICS
  • Information Patent Grant

    Range finder
    • Patent number 8,638,423
    • Issue date Jan 28, 2014
    • Nikon Vision Co., Ltd.
    • Kenji Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Range finder
    • Patent number 8,605,259
    • Issue date Dec 10, 2013
    • Nikon Vision Co., Ltd.
    • Kenji Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Range finder
    • Patent number 8,477,290
    • Issue date Jul 2, 2013
    • Nikon Vision Co., Ltd.
    • Kenji Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Telescope optical system
    • Patent number 8,194,318
    • Issue date Jun 5, 2012
    • Nikon Vision Co., Ltd.
    • Kenji Yamada
    • G02 - OPTICS
  • Information Patent Grant

    Sighting device
    • Patent number 8,054,555
    • Issue date Nov 8, 2011
    • Nikon Vision Co., Ltd.
    • Kenji Yamada
    • F41 - WEAPONS
  • Information Patent Grant

    Observation device and binoculars
    • Patent number 7,961,387
    • Issue date Jun 14, 2011
    • Nikon Vision Co. Ltd.
    • Shunichi Haga
    • G02 - OPTICS
  • Information Patent Grant

    Zoom eyepiece lens system
    • Patent number 7,903,343
    • Issue date Mar 8, 2011
    • Nikon Corporation
    • Kenji Yamada
    • G02 - OPTICS
  • Information Patent Grant

    Object-surface-shape measuring apparatus
    • Patent number 5,416,538
    • Issue date May 16, 1995
    • Nikon Corporation
    • Kenji Yamada
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Finder indication optical system in a single-lens reflex camera
    • Patent number 5,349,404
    • Issue date Sep 20, 1994
    • Nikon Corporation
    • Kenji Yamada
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Automatic focusing telescope
    • Patent number 5,126,549
    • Issue date Jun 30, 1992
    • Nikon Corporation
    • Kenji Yamada
    • G02 - OPTICS
  • Information Patent Grant

    Optical equipment with a semitransparent mirror
    • Patent number 5,039,213
    • Issue date Aug 13, 1991
    • Nikon Corporation
    • Kenji Yamada
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    RANGE FINDER
    • Publication number 20130114063
    • Publication date May 9, 2013
    • NIKON VISION CO., LTD
    • Kenji YAMADA
    • G01 - MEASURING TESTING
  • Information Patent Application

    RANGE FINDER
    • Publication number 20120113409
    • Publication date May 10, 2012
    • NIKON VISION CO., LTD
    • Kenji YAMADA
    • G01 - MEASURING TESTING
  • Information Patent Application

    RELAY ZOOM SYSTEM
    • Publication number 20110109963
    • Publication date May 12, 2011
    • NIKON VISION CO., LTD
    • Kenji YAMADA
    • G02 - OPTICS
  • Information Patent Application

    RANGE FINDER
    • Publication number 20100321669
    • Publication date Dec 23, 2010
    • NIKON VISION CO., LTD
    • Kenji YAMADA
    • G01 - MEASURING TESTING
  • Information Patent Application

    TELESCOPE OPTICAL SYSTEM
    • Publication number 20100284068
    • Publication date Nov 11, 2010
    • Nikon Vision Co., Ltd.
    • Kenji YAMADA
    • G02 - OPTICS
  • Information Patent Application

    ZOOM EYEPIECE LENS SYSTEM
    • Publication number 20100149649
    • Publication date Jun 17, 2010
    • Nikon Vision Co., Ltd.
    • Kenji YAMADA
    • G02 - OPTICS
  • Information Patent Application

    Observation Device and Binoculars
    • Publication number 20080239479
    • Publication date Oct 2, 2008
    • Shunichi Haga
    • G02 - OPTICS
  • Information Patent Application

    SIGHTING DEVICE
    • Publication number 20080137195
    • Publication date Jun 12, 2008
    • Kenji YAMADA
    • G02 - OPTICS