TREA

Hidenori Yasuoka

Follow

Person

  • Kawasaki, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Screw coupling joint
    • Patent number 4,984,829
    • Issue date Jan 15, 1991
    • Nippon Kokan Kabushiki Kaisha
    • Takeshi Saigo
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Screw joint coupling for oil pipes
    • Patent number 4,623,173
    • Issue date Nov 18, 1986
    • Nippon Kokan Kabushiki Kaisha
    • Masao Handa
    • E21 - EARTH DRILLING MINING