TREA

Yutaka Mae

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker cone plate and method of forming
    • Patent number 4,996,119
    • Issue date Feb 26, 1991
    • Kabushiki Kaisha Kenwood
    • Yutaka Mae
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Speaker system
    • Patent number 4,146,111
    • Issue date Mar 27, 1979
    • Trio Kabushiki Kaisha
    • Yutaka Mae
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE