TREA

Yoshihito Minami

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  • Both of Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tunnel excavator
    • Patent number 5,931,601
    • Issue date Aug 3, 1999
    • Komatsu Ltd.
    • Shinichi Terada
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel boring machine
    • Patent number 5,915,790
    • Issue date Jun 29, 1999
    • Hazama Corporation
    • Takashi Sakai
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Device for fixing disk cutter to tunnel excavator
    • Patent number 5,181,577
    • Issue date Jan 26, 1993
    • Kabushiki Kaisha Komatsu Seisakusho
    • Toshio Tsukamoto
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shield type tunneling apparatus
    • Patent number 4,818,026
    • Issue date Apr 4, 1989
    • Kabushiki Kaisha Komatsu Seisakusho
    • Toshihiro Yamazaki
    • E21 - EARTH DRILLING MINING