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Yukio Kokuzawa

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Plastic sheet
    • Patent number 7,567,381
    • Issue date Jul 28, 2009
    • Mitsubishi Gas Chemical Company, Inc.
    • Yukio Kokuzawa
    • G02 - OPTICS
  • Information Patent Grant

    Lens sheets for rear projection screens
    • Patent number 7,369,311
    • Issue date May 6, 2008
    • Mitsubishi Gas Chemical Company Inc
    • Yukio Kokuzawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Fresnel lens sheet and rear projection screen
    • Patent number 7,196,845
    • Issue date Mar 27, 2007
    • Mitsubishi Gas Chemical Company, Inc.
    • Yukio Kokuzawa
    • G02 - OPTICS

Patents Applicationslast 30 patents