TREA

Tokumi Tsugawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Refrigeration system
    • Patent number 7,165,421
    • Issue date Jan 23, 2007
    • TGK Co., Ltd.
    • Tokumi Tsugawa
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Differential pressure valve
    • Patent number 6,986,498
    • Issue date Jan 17, 2006
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Outflow prevention device
    • Patent number 6,966,365
    • Issue date Nov 22, 2005
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Solenoid control valve
    • Patent number 6,957,663
    • Issue date Oct 25, 2005
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Four-way switching valve
    • Patent number 6,860,294
    • Issue date Mar 1, 2005
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Proportional solenoid valve
    • Patent number 6,783,110
    • Issue date Aug 31, 2004
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigerating cycle
    • Patent number 6,694,760
    • Issue date Feb 24, 2004
    • TGK Co. Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Degree of supercooling control type expansion valve
    • Patent number 6,532,764
    • Issue date Mar 18, 2003
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Solenoid operated pilot valve
    • Patent number 6,390,441
    • Issue date May 21, 2002
    • TGK Co., Ltd.
    • Katsumi Koyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pilot-operated flow regulating valve
    • Patent number 6,315,266
    • Issue date Nov 13, 2001
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Supercooling degree-controlled expansion valve
    • Patent number 6,314,753
    • Issue date Nov 13, 2001
    • TGK Co. Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

  • Information Patent Application

    EXPANSION DEVICE
    • Publication number 20080053125
    • Publication date Mar 6, 2008
    • TGK CO., LTD.
    • Ryosuke SATAKE
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Expansion device
    • Publication number 20070180854
    • Publication date Aug 9, 2007
    • TGK CO., LTD.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Expansion device
    • Publication number 20060117793
    • Publication date Jun 8, 2006
    • TGK CO., LTD.
    • Tokumi Tsugawa
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Refrigeration system
    • Publication number 20050217313
    • Publication date Oct 6, 2005
    • TGK CO., LTD.
    • Tokumi Tsugawa
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Expansion device
    • Publication number 20050050916
    • Publication date Mar 10, 2005
    • TGK CO., LTD.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Outflow prevention device
    • Publication number 20030213516
    • Publication date Nov 20, 2003
    • TGK CO., LTD.
    • Hisatoshi Hirota
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Solenoid control valve
    • Publication number 20030201413
    • Publication date Oct 30, 2003
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Four-way switching valve
    • Publication number 20030155020
    • Publication date Aug 21, 2003
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Differential pressure valve
    • Publication number 20030151011
    • Publication date Aug 14, 2003
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Proportional solenoid valve
    • Publication number 20030146402
    • Publication date Aug 7, 2003
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Refrigerating cycle
    • Publication number 20020194864
    • Publication date Dec 26, 2002
    • TGK Co., Inc.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Solenoid operated pilot valve
    • Publication number 20020003221
    • Publication date Jan 10, 2002
    • Katsumi Koyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...