TREA

Yutaka Kashima

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Shield tunnel boring machine
    • Patent number 5,697,676
    • Issue date Dec 16, 1997
    • Daiho Corporation
    • Yutaka Kashima
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Underground excavator
    • Patent number 5,032,039
    • Issue date Jul 16, 1991
    • Daiho Construction Co., Ltd.
    • Hakumi Hagimoto
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Caisson sinking method
    • Patent number 4,797,031
    • Issue date Jan 10, 1989
    • Daiho Construction Co., Ltd.
    • Hakumi Hagimoto
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Shield tunnel boring machine
    • Patent number 4,607,889
    • Issue date Aug 26, 1986
    • Daiho Construction Co., Ltd.
    • Hakumi Hagimoto
    • E21 - EARTH DRILLING MINING