TREA

Tomoe Technical Research Company

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Patents Grantslast 30 patents

  • Information Patent Grant

    Butterfly valve
    • Patent number 7,090,193
    • Issue date Aug 15, 2006
    • Tomoe Technical Research Company Ltd.
    • Jiro Kamesawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Actuator for driving a valve
    • Patent number 6,991,210
    • Issue date Jan 31, 2006
    • Tomoe Technical Research Company Ltd.
    • Hideo Hagiwara
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Butterfly valve with low noise
    • Patent number 6,338,468
    • Issue date Jan 15, 2002
    • Tomoe Technical Research Company
    • Kazuhiko Ogawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • 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...
  • Information Patent Grant

    Butterfly valve having a function for measuring a flow rate and met...
    • Patent number RE33649
    • Issue date Jul 30, 1991
    • Tomoe Technical Research Company
    • Kouzi Kawai
    • 137 - Fluid handling
  • Information Patent Grant

    Butterfly valve
    • Patent number 5,029,811
    • Issue date Jul 9, 1991
    • Tomoe Technical Research Company
    • Takeshi Yamamoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Butterfly valve having a function for measuring a flow rate and met...
    • Patent number 4,926,903
    • Issue date May 22, 1990
    • Tomoe Technical Research Company
    • Kouzi Kawai
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Butterfly valve
    • Patent number 4,318,422
    • Issue date Mar 9, 1982
    • Tomoe Technical Research Company
    • Mikimaro Nakanishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Butterfly valve
    • Patent number 4,289,297
    • Issue date Sep 15, 1981
    • Tomoe Technical Research Company
    • Mikimaro Nakanishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Driving device for opening and closing a valve
    • Patent number 4,235,258
    • Issue date Nov 25, 1980
    • Tomoe Technical Research Company
    • Takayoshi Uno
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Butterfly valve
    • Publication number 20050184267
    • Publication date Aug 25, 2005
    • Tomoe Technical Research Company, Ltd.
    • Jiro Kamesawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Trademarklast 30 trademarks