TREA

Hifumi Sakaguchi

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  • Abiko, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Marine cable burying method and device therefor
    • Patent number 4,537,530
    • Issue date Aug 27, 1985
    • Kokusai Denshin Denwa Co., Ltd.
    • Kazuomi Yamamura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Under-water cable burying device
    • Patent number 4,384,808
    • Issue date May 24, 1983
    • Kokusai Denshin Denwa Co., Ltd.
    • Kazuomi Yamamura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING