TREA

Masanori Tsumura

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lens for projector
    • Patent number D647931
    • Issue date Nov 1, 2011
    • Hitachi Consumer Electronics Co., Ltd.
    • Masayuki Fukui
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Lens for projector
    • Patent number D645068
    • Issue date Sep 13, 2011
    • Hitachi Consumer Electronics Co., Ltd.
    • Masayuki Fukui
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Mirror for projector
    • Patent number D639076
    • Issue date Jun 7, 2011
    • Hitachi Consumer Electronics Co., Ltd.
    • Masayuki Fukui
    • D06 - Furnishings