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Tadashi Okuda

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  • Chikusei-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Light guide plate and backlight unit
    • Patent number 8,096,693
    • Issue date Jan 17, 2012
    • Hitachi Chemical Co., Ltd.
    • Masato Taya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Backlight unit
    • Patent number 7,665,876
    • Issue date Feb 23, 2010
    • Hitachi Chemical Co., Ltd.
    • Masato Taya
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    SURFACE LIGHT SOURCE DEVICE AND PRISM SHEET
    • Publication number 20100220498
    • Publication date Sep 2, 2010
    • Yasuhiko Awano
    • G02 - OPTICS
  • Information Patent Application

    Backlight unit
    • Publication number 20090147532
    • Publication date Jun 11, 2009
    • HITACHI CHEMICAL CO., LTD.
    • Masato Taya
    • G02 - OPTICS
  • Information Patent Application

    Light guide plate and backlight unit
    • Publication number 20090129056
    • Publication date May 21, 2009
    • HITACHI CHEMICAL CO., LTD.
    • Masato Taya
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE