TREA

Masaki Kawahara

Follow

Person

  • Tokyo, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Float valve sub
    • Patent number 10,767,446
    • Issue date Sep 8, 2020
    • Japan Agency for Marine-Earth Science and Technology
    • Yuichi Shimmoto
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Crustal core sampler and method of coring crustal core sample using...
    • Patent number 7,124,841
    • Issue date Oct 24, 2006
    • Independent Administrative Institution Japan Agency for Marine-Earth Science...
    • Kazuyasu Wada
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    FLOAT VALVE SUB
    • Publication number 20180209245
    • Publication date Jul 26, 2018
    • JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY
    • Yuichi SHIMMOTO
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Crustal core sampler and method of coring crustal core sample using...
    • Publication number 20040256151
    • Publication date Dec 23, 2004
    • Independent Administrative Institution, Japan Agency for Marine-Earth Science...
    • Kazuyasu Wada
    • E21 - EARTH DRILLING MINING