TREA

Akitaka Takeuchi

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Patents Grantslast 30 patents

  • Information Patent Grant

    Cab for construction machinery
    • Patent number 6,450,284
    • Issue date Sep 17, 2002
    • Hitachi Construction Machinery Co., Ltd.
    • Tsuyoshi Sakyo
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic excavator
    • Patent number D437602
    • Issue date Feb 13, 2001
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuhiko Hiraoka
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Large-sized excavator
    • Patent number D410471
    • Issue date Jun 1, 1999
    • Hitachi Construction Machinery Co., Ltd.
    • Atsushi Tamane
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Frequency inverter
    • Patent number D358753
    • Issue date May 30, 1995
    • Hitachi, Ltd.
    • Yoshiki Yoshida
    • D13 - Equipment for production, distribution, or transformation of energy