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Yoshiaki Iwahara

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  • Yokosuka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rear projection type display system
    • Patent number 5,870,225
    • Issue date Feb 9, 1999
    • Hitachi, Ltd.
    • Masanori Ogino
    • G02 - OPTICS
  • Information Patent Grant

    Liquid crystal Projection display
    • Patent number 5,758,940
    • Issue date Jun 2, 1998
    • Hitachi, Ltd.
    • Masanori Ogino
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Rear projection type display system
    • Patent number 5,611,611
    • Issue date Mar 18, 1997
    • Hitachi, Ltd.
    • Masanori Ogino
    • G02 - OPTICS
  • Information Patent Grant

    Liquid crystal projection display
    • Patent number 5,537,171
    • Issue date Jul 16, 1996
    • Hitachi, Ltd.
    • Masanori Ogino
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Multi-screen projector
    • Patent number 5,467,221
    • Issue date Nov 14, 1995
    • Hitachi, Ltd.
    • Yoshiaki Iwahara
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Projection type display device
    • Patent number 5,412,437
    • Issue date May 2, 1995
    • Hitachi, Ltd.
    • Masanori Ogino
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Two dimensional moire reduction type projection display
    • Patent number 5,365,369
    • Issue date Nov 15, 1994
    • Hitachi, Ltd.
    • Masanori Ogino
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Liquid crystal projection display
    • Patent number 5,355,187
    • Issue date Oct 11, 1994
    • Hitachi, Ltd.
    • Masanori Ogino
    • G02 - OPTICS
  • Information Patent Grant

    Large-screen projection-type display
    • Patent number 5,200,854
    • Issue date Apr 6, 1993
    • Hitachi, Ltd.
    • Masanori Ogino
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Multi-screen projector
    • Patent number 5,085,495
    • Issue date Feb 4, 1992
    • Hitachi, Ltd.
    • Yoshiaki Iwahara
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Multi-screen projector
    • Patent number 5,011,277
    • Issue date Apr 30, 1991
    • Hitachi, Ltd.
    • Masanori Ogino
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Liquid crystal panel type projection display
    • Patent number 4,969,731
    • Issue date Nov 13, 1990
    • Hitachi, Ltd.
    • Masanori Ogino
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Multi-screen projector
    • Patent number 4,919,518
    • Issue date Apr 24, 1990
    • Hitachi, Ltd.
    • Masanori Ogino
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Rear projection apparatus
    • Patent number 4,895,429
    • Issue date Jan 23, 1990
    • Hitachi, Ltd.
    • Yoshiaki Iwahara
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Coupling system for image projection
    • Patent number 4,729,031
    • Issue date Mar 1, 1988
    • Hitachi, Ltd.
    • Shobu Saito
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE