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Masashi Takazawa

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  • Ora-gun, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Solar battery type indication apparatus
    • Patent number 6,092,318
    • Issue date Jul 25, 2000
    • Sanyo Electric Co., Ltd.
    • Shigeyoshi Arie
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Signpost
    • Patent number D398656
    • Issue date Sep 22, 1998
    • Sanyo Electric Co., Ltd.
    • Kiyondo Kobayashi
    • D20 - Sales and advertising equipment
  • Information Patent Grant

    Skylight having a light collecting system
    • Patent number D396301
    • Issue date Jul 21, 1998
    • Sanyo Electric Co., Ltd.
    • Norioki Fujimoto
    • D25 - Building units and construction elements
  • Information Patent Grant

    Solar lighting apparatus and controller for controlling the solar l...
    • Patent number 5,729,387
    • Issue date Mar 17, 1998
    • Sanyo Electric Co., Ltd.
    • Kazuo Takahashi
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Natural illumination device
    • Patent number D387430
    • Issue date Dec 9, 1997
    • Sanyo Electric Co., Ltd.
    • Masashi Takazawa
    • D25 - Building units and construction elements