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Hiroyuki Kitagawa

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  • Ohta-ku, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe coupling apparatus
    • Patent number 8,864,179
    • Issue date Oct 21, 2014
    • Nitto Kohki Co., Ltd.
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Male joint member for pipe joint
    • Patent number 8,590,860
    • Issue date Nov 26, 2013
    • Nitto Kohki Co., Ltd.
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe coupling and female pipe coupling member
    • Patent number 8,246,085
    • Issue date Aug 21, 2012
    • Nitto Kohki Co., Ltd.
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Coupling member for pipe coupling
    • Patent number 8,196,606
    • Issue date Jun 12, 2012
    • Nitto Kohki Co., Ltd.
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Coupling, and socket and plug for use in the coupling
    • Patent number 7,926,855
    • Issue date Apr 19, 2011
    • Nitto Kohki Co., Ltd.
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Coupling member of pipe coupling
    • Patent number 7,708,029
    • Issue date May 4, 2010
    • Nitto Kohki Co., Ltd.
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Assembly of male and female members
    • Patent number 7,641,239
    • Issue date Jan 5, 2010
    • Nitto Kohki Co., Ltd.
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fluid coupler
    • Patent number 6,899,132
    • Issue date May 31, 2005
    • Nitto Kohki Co., Ltd.
    • Toshio Mikiya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fluid coupler
    • Patent number 6,792,974
    • Issue date Sep 21, 2004
    • Nitto Kohki Co., Ltd.
    • Toshio Mikiya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    MALE JOINT MEMBER FOR PIPE JOINT
    • Publication number 20120180891
    • Publication date Jul 19, 2012
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PIPE COUPLING APPARATUS
    • Publication number 20110198841
    • Publication date Aug 18, 2011
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PIPE COUPLING AND FEMALE PIPE COUPLING MEMBER
    • Publication number 20100201123
    • Publication date Aug 12, 2010
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    ASSEMBLY OF MALE AND FEMALE MEMBERS
    • Publication number 20100059997
    • Publication date Mar 11, 2010
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COUPLING MEMBER FOR PIPE COUPLING
    • Publication number 20100051129
    • Publication date Mar 4, 2010
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COUPLING, AND SOCKET AND PLUG FOR USE IN THE COUPLING
    • Publication number 20100019493
    • Publication date Jan 28, 2010
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Assembly of male and female members
    • Publication number 20090026762
    • Publication date Jan 29, 2009
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Coupling member of pipe coupling
    • Publication number 20070246107
    • Publication date Oct 25, 2007
    • Nitto Kohki Co., Ltd.
    • Hiroyuki Kitagawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    FLUID COUPLER
    • Publication number 20040134544
    • Publication date Jul 15, 2004
    • Toshio Mikiya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Fluid coupler
    • Publication number 20040079423
    • Publication date Apr 29, 2004
    • Toshio Mikiya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...