TREA

Shigeru Watanabe

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  • Suita, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Concrete pile
    • Patent number 4,048,805
    • Issue date Sep 20, 1977
    • Nippon Concrete Industries Co. Ltd.
    • Yoshikiyo Fukushima
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Method of constructing a wall for supporting earth
    • Patent number 3,999,392
    • Issue date Dec 28, 1976
    • Nikkai Giken Co., Ltd.
    • Yoshikiyo Fukushima
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING