TREA

Osamu Shoji

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Backlighting device
    • Patent number 5,730,518
    • Issue date Mar 24, 1998
    • Tosoh Corporation
    • Keiji Kashima
    • G02 - OPTICS
  • Information Patent Grant

    Backlighting device
    • Patent number 5,442,523
    • Issue date Aug 15, 1995
    • Tosoh Corporation
    • Keiji Kashima
    • G02 - OPTICS
  • Information Patent Grant

    Backlighting device
    • Patent number 5,289,351
    • Issue date Feb 22, 1994
    • Tosoh Corporation
    • Keiji Kashima
    • G02 - OPTICS
  • Information Patent Grant

    Back lighting device
    • Patent number 5,262,928
    • Issue date Nov 16, 1993
    • Tosoh Corporation
    • Keiji Kashima
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Back lighting device for a panel
    • Patent number 5,093,765
    • Issue date Mar 3, 1992
    • Tosoh Corporation
    • Keiji Kashima
    • G02 - OPTICS
  • Information Patent Grant

    Back lighting device for a liquid crystal panel
    • Patent number 4,937,709
    • Issue date Jun 26, 1990
    • Tosoh Corporation
    • Eiichi Yanagi
    • G02 - OPTICS