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Hidefumi Takahashi

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  • Kiryu, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drainage structure of a volute horn
    • Patent number 5,345,852
    • Issue date Sep 13, 1994
    • Mitsuba Electric Manufacturing Co., Ltd.
    • Hidefumi Takahashi
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Volute horn and method of manufacturing
    • Patent number 5,263,435
    • Issue date Nov 23, 1993
    • Mitsuba Electric Manufacturing Co., Ltd.
    • Hidefumi Takahashi
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS