TREA

Ryoichi Ohtani

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and device for detecting metal ions
    • Patent number 4,587,543
    • Issue date May 6, 1986
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Ryoichi Ohtani
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Plugging device
    • Patent number 4,297,873
    • Issue date Nov 3, 1981
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Hiromichi Nei
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Plugging indicator
    • Patent number 4,274,280
    • Issue date Jun 23, 1981
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Hiromichi Nei
    • G01 - MEASURING TESTING