TREA

Yuuichi Kodama

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  • Hiratsuka-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Auxiliary tunneling apparatus
    • Patent number 9,617,853
    • Issue date Apr 11, 2017
    • Komatsu Ltd.
    • Kazunari Kawai
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel excavation method
    • Patent number 9,388,690
    • Issue date Jul 12, 2016
    • Komatsu Ltd.
    • Kazunari Kawai
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    AUXILIARY TUNNELING APPARATUS
    • Publication number 20150078831
    • Publication date Mar 19, 2015
    • Komatsu Ltd.
    • Kazunari Kawai
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    TUNNEL EXCAVATION METHOD
    • Publication number 20150069815
    • Publication date Mar 12, 2015
    • Komatsu Ltd.
    • Kazunari Kawai
    • E21 - EARTH DRILLING MINING