TREA

Kenzo Akiyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Music box
    • Patent number 5,418,319
    • Issue date May 23, 1995
    • Kenzo Akiyama
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Toy musical instrument
    • Patent number 4,185,533
    • Issue date Jan 29, 1980
    • Tomy Kogyo Co., Inc.
    • Kenzo Akiyama
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS