TREA

Katsuya Nakakubo

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Chain guide
    • Patent number 10,364,869
    • Issue date Jul 30, 2019
    • Tsubakimoto Chain Co.
    • Yuji Kurematsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tensioner
    • Patent number 6,666,785
    • Issue date Dec 23, 2003
    • Tsubakimoto Chain Co.
    • Tsutomu Namie
    • 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

    Closed hydraulic tensioner
    • Patent number 6,471,612
    • Issue date Oct 29, 2002
    • Tsubakimoto Chain Co.
    • Katsuya Nakakubo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tensioner with plunger stopper pin
    • Patent number 6,435,992
    • Issue date Aug 20, 2002
    • Tsubakimoto Chain Co.
    • Naoki Wakabayashi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tensioner device for chain drive mechanism
    • Patent number 6,146,300
    • Issue date Nov 14, 2000
    • Tsubakimoto Chain Co.
    • Tadasu Suzuki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydraulic tensioner
    • Patent number 5,833,220
    • Issue date Nov 10, 1998
    • Tsubakimoto Chain Co.
    • Katsuya Nakakubo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydraulic tensioner
    • Patent number 5,785,619
    • Issue date Jul 28, 1998
    • Tsubakimoto Chain Co.
    • Katsuya Nakakubo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Hydraulic tensioner
    • Patent number 5,709,625
    • Issue date Jan 20, 1998
    • Tsubakimoto Chain Co.
    • Katsuya Nakakubo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Tensioner with spring having nonlinear characteristics
    • Patent number 5,630,768
    • Issue date May 20, 1997
    • Tsubakimoto Chain Co.
    • Katsuya Nakakubo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Preventive structure for preventing extraordinary deformation of a...
    • Patent number 5,538,478
    • Issue date Jul 23, 1996
    • Tsubakimoto Chain Co.
    • Katsuya Nakakubo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Temperature compensated tensioner
    • Patent number 5,234,383
    • Issue date Aug 10, 1993
    • Tsubakimoto Chain Co.
    • Norio Harada
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tensioner for a toothed belt
    • Patent number 5,181,889
    • Issue date Jan 26, 1993
    • Tsubakimoto Chain Co.
    • Masao Maruyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydraulic pressure apparatus with air scavenging
    • Patent number 5,167,402
    • Issue date Dec 1, 1992
    • Tsubakimoto Chain Co.
    • Katsuya Nakakubo
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Diaphragm seal type tensioner
    • Patent number 5,073,149
    • Issue date Dec 17, 1991
    • Tsubakimoto Chain Co.
    • Masao Maruyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    CHAIN GUIDE
    • Publication number 20140243132
    • Publication date Aug 28, 2014
    • Tsubakimoto Chain Co.
    • Yuji Kurematsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    RATCHET-TYPE TENSIONER
    • Publication number 20100298077
    • Publication date Nov 25, 2010
    • Tsubakimoto Chain Co.
    • Manabu Hirayama
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    RATCHET-TYPE TENSIONER
    • Publication number 20100298078
    • Publication date Nov 25, 2010
    • Tsubakimoto Chain Co.
    • Manabu Hirayama
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Oil tight type chain tensioner
    • Publication number 20050064969
    • Publication date Mar 24, 2005
    • Yukiharu Tomita
    • 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...
  • Information Patent Application

    Tensioner with plunger stopper pin
    • Publication number 20010039223
    • Publication date Nov 8, 2001
    • Naoki Wakabayashi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Closed hydraulic tensioner
    • Publication number 20010007841
    • Publication date Jul 12, 2001
    • Katsuya Nakakubo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Closed hydraulic tensioner
    • Publication number 20010007840
    • Publication date Jul 12, 2001
    • Katsuya Nakakubo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...