TREA

Kamezawa Jiro

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  • Daito, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Manual device for valve
    • Patent number 5,490,660
    • Issue date Feb 13, 1996
    • Tomoe Technical Research Company
    • Jiro Kamezawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seat ring and butterfly valve fitting this seat ring thereto
    • Patent number 5,482,252
    • Issue date Jan 9, 1996
    • Tomoe Technical Research Company
    • Jiro Kamezawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Butterfly valve to prevent dew condensation therefrom
    • Patent number 5,150,731
    • Issue date Sep 29, 1992
    • Tomoe Technical Research Co.
    • Kamezawa Jiro
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...