TREA

Tosh Miyagishima

Follow

Person

  • Los Angeles, CA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Front packer seal for ram blowout preventer
    • Patent number 4,323,256
    • Issue date Apr 6, 1982
    • Hydril Company
    • Tosh Miyagishima
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Composite seal
    • Patent number 4,305,595
    • Issue date Dec 15, 1981
    • Hydril Company
    • Tosh Miyagishima
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Inside blowout preventer well tool
    • Patent number 4,294,314
    • Issue date Oct 13, 1981
    • Hydril Company
    • Tosh Miyagishima
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Internal mud saver valve
    • Patent number 4,248,264
    • Issue date Feb 3, 1981
    • Hydril Company
    • William R. Hadsell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Well line strap connection
    • Patent number 4,064,601
    • Issue date Dec 27, 1977
    • Hydril Company
    • Tosh Miyagishima
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Subsurface well apparatus
    • Patent number 4,036,296
    • Issue date Jul 19, 1977
    • Hydril Company
    • James D. Mott
    • E21 - EARTH DRILLING MINING