TREA

Kazuo Ohta

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Composite sealing material
    • Patent number 5,540,451
    • Issue date Jul 30, 1996
    • Tokyo Electric Power Services Co., Ltd.
    • Kazuo Ohta
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Carbon-based composite ceramic sealing material
    • Patent number 5,518,255
    • Issue date May 21, 1996
    • NGK Insulators, Ltd.
    • Shoji Seike
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...