TREA

Yoshio Kurokawa

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  • Osaka-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic tensioner with improved relief valve
    • Patent number 7,618,339
    • Issue date Nov 17, 2009
    • Tsubakimoto Chain Co.
    • Hiroshi Hashimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ratchet type tensioner
    • Patent number 7,442,138
    • Issue date Oct 28, 2008
    • Tsubakimoto Chain Co.
    • Yoshio Kurokawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ratchet tensioner having plunger stop
    • Patent number 6,953,406
    • Issue date Oct 11, 2005
    • Tsubakimoto Chain Co.
    • Yoshio Kurokawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ratchet-type hydraulic tensioner
    • Patent number 6,875,141
    • Issue date Apr 5, 2005
    • Tsubakimoto Chain Co.
    • Tatsuya Konishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydraulic tensioner with relief valve mechanism
    • Patent number 6,810,907
    • Issue date Nov 2, 2004
    • Tsubakimoto Chain Co.
    • Hiroshi Hashimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tensioner with relief valve mechanism
    • Patent number 6,592,479
    • Issue date Jul 15, 2003
    • Tsubakimoto Chain Co.
    • Katsuya Nakakubo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Frictional type connector for connecting a rotator to a shaft
    • Patent number 5,647,685
    • Issue date Jul 15, 1997
    • Tsubakimoto Chain Co.
    • Toyoakira Fukui
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Ratchet type tensioner
    • Publication number 20070142144
    • Publication date Jun 21, 2007
    • Tsubakimoto Chain Co.
    • Yoshio Kurokawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Hydraulic tensioner with improved relief valve
    • Publication number 20060089221
    • Publication date Apr 27, 2006
    • Tsubakimoto Chain Co.
    • Hiroshi Hashimoto
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Ratchet type tensioner
    • Publication number 20040171447
    • Publication date Sep 2, 2004
    • Isamu Okabe
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Ratchet type tensioner having plunger stop
    • Publication number 20040007200
    • Publication date Jan 15, 2004
    • Yoshio Kurokawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Ratchet-type hydraulic tensioner
    • Publication number 20030186765
    • Publication date Oct 2, 2003
    • Tatsuya Konishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Hydraulic tensioner with relief valve mechanism
    • Publication number 20030070717
    • Publication date Apr 17, 2003
    • Hiroshi Hashimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Tensioner with relief valve mechanism
    • Publication number 20020052259
    • Publication date May 2, 2002
    • Katsuya Nakakubo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...