TREA

Hisashi Iechika

Follow

Person

  • Shiojiri-shi Nagano-ken, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Projector
    • Patent number RE41680
    • Issue date Sep 14, 2010
    • Seiko Epson Corporation
    • Toshiaki Hashizume
    • 353 - Optics: image projectors
  • Information Patent Grant

    Illuminating device and projector
    • Patent number 7,497,594
    • Issue date Mar 3, 2009
    • Seiko Epson Corporation
    • Satoru Nagarekawa
    • F21 - LIGHTING
  • Information Patent Grant

    Projector
    • Patent number RE39702
    • Issue date Jun 26, 2007
    • Seiko Epson Corporation
    • Toshiaki Hashizume
    • 353 - Optics: image projectors
  • Information Patent Grant

    Prism structure and projector
    • Patent number 7,198,374
    • Issue date Apr 3, 2007
    • Seiko Epson Corporation
    • Hisashi Iechika
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Illumination optical system and projector using the same
    • Patent number 7,118,229
    • Issue date Oct 10, 2006
    • Seiko Epson Corporation
    • Hisashi Iechika
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Projector
    • Patent number RE39040
    • Issue date Mar 28, 2006
    • Seiko Epson Corporation
    • Yasunori Ogawa
    • 353 - Optics: image projectors
  • Information Patent Grant

    Liquid crystal light valve and projection display device including...
    • Patent number 6,856,375
    • Issue date Feb 15, 2005
    • Seiko Epson Corporation
    • Akitaka Yajima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Projector
    • Patent number RE38084
    • Issue date Apr 22, 2003
    • Seiko Epson Corporation
    • Toshiaki Hashizume
    • 353 - Optics: image projectors
  • Information Patent Grant

    Illuminating optical system and projector
    • Patent number 6,273,569
    • Issue date Aug 14, 2001
    • Seiko Epson Corporation
    • Hisashi Iechika
    • G02 - OPTICS
  • Information Patent Grant

    Projector
    • Patent number 6,247,817
    • Issue date Jun 19, 2001
    • Seiko Epson Corporation
    • Yasunori Ogawa
    • G02 - OPTICS
  • Information Patent Grant

    Projector
    • Patent number 6,142,634
    • Issue date Nov 7, 2000
    • Seiko Epson Corporation
    • Yasunori Ogawa
    • G02 - OPTICS
  • Information Patent Grant

    Polarizing illumination device and projection display device
    • Patent number 6,092,901
    • Issue date Jul 25, 2000
    • Seiko Epson Corporation
    • Toshiaki Hashizume
    • G02 - OPTICS
  • Information Patent Grant

    Projection-type display apparatus
    • Patent number 6,000,802
    • Issue date Dec 14, 1999
    • Seiko Epson Corporation
    • Toshiaki Hashizume
    • G02 - OPTICS
  • Information Patent Grant

    Projection-type display apparatus
    • Patent number 5,865,521
    • Issue date Feb 2, 1999
    • Seiko Epson Corporation
    • Toshiaki Hashizume
    • G02 - OPTICS

Patents Applicationslast 30 patents