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Keiji Yuyama

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  • Himeji, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Projector
    • Patent number D691188
    • Issue date Oct 8, 2013
    • Sanyo Electric Co., LTD
    • Keiji Yuyama
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Video projector
    • Patent number 8,267,530
    • Issue date Sep 18, 2012
    • Sanyo Electric Co., LTD
    • Keiji Yuyama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Projector
    • Patent number D648366
    • Issue date Nov 8, 2011
    • Sanyo Electric Co., LTD
    • Keiji Yuyama
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Projector
    • Patent number D647941
    • Issue date Nov 1, 2011
    • Sanyo Electric Co., LTD
    • Keiji Yuyama
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Electric massager
    • Patent number D590065
    • Issue date Apr 7, 2009
    • Sanyo Electric Co., LTD
    • Keiji Yuyama
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Chair-type massager
    • Patent number D491375
    • Issue date Jun 15, 2004
    • Sanyo Electric Co., LTD
    • Keiji Yuyama
    • D06 - Furnishings

Patents Applicationslast 30 patents

  • Information Patent Application

    VIDEO PROJECTOR
    • Publication number 20100141853
    • Publication date Jun 10, 2010
    • Sanyo Electric Co., Ltd.
    • Keiji YUYAMA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    PROJECTION IMAGE DISPLAY APPARATUS
    • Publication number 20090273759
    • Publication date Nov 5, 2009
    • Sanyo Electric Co., Ltd.
    • Naoyuki Ikeda
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE