TREA

Takao Kawanuma

Follow

Person

  • Ibaraki, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Ultrasonic probe
    • Patent number 5,050,137
    • Issue date Sep 17, 1991
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuo Sato
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Ultrasonic probe and manufacture method for same
    • Patent number 5,003,516
    • Issue date Mar 26, 1991
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuo Sato
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS