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Atsushi Kumakura

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic tensioner
    • Patent number 7,226,376
    • Issue date Jun 5, 2007
    • Tsubakimoto Chain Co.
    • Tatsuya Konishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Parts retaining panel and method of mounting and securing parts
    • Patent number 7,140,604
    • Issue date Nov 28, 2006
    • Tsubakimoto Chain Co.
    • Fumiaki Oba
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Movable guide for transmission device
    • Patent number 7,137,916
    • Issue date Nov 21, 2006
    • Tsubakimoto Chain Co.
    • Junya Kurohata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tensioner having protrusion-preventing mechanism for a plunger
    • Patent number 6,916,264
    • Issue date Jul 12, 2005
    • Tsubakimoto Chain Co.
    • Hiroshi Hashimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pivotally movable plastic guide for power transmission device
    • Patent number 6,645,102
    • Issue date Nov 11, 2003
    • Tsubakimoto Chain Co.
    • Atsushi Kumakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Guide for chain drive
    • Patent number 6,585,614
    • Issue date Jul 1, 2003
    • Tsubakimoto Chain Co.
    • Atsushi Kumakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tensioner lever for chain drive
    • Patent number 6,428,435
    • Issue date Aug 6, 2002
    • Tsubakimoto Chain Co.
    • Atsushi Kumakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Plate base of guide for chain drive
    • Patent number 6,095,938
    • Issue date Aug 1, 2000
    • Tsubakimoto Chain Co.
    • Atsushi Kumakura
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Shoe for guiding the running of a transmission chain
    • Patent number 6,062,998
    • Issue date May 16, 2000
    • Tsubakimoto Chain Co.
    • Atsushi Kumakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Traveling guide shoe for a roller chain
    • Patent number 5,961,411
    • Issue date Oct 5, 1999
    • Tsubakimoto Chain Co.
    • Kazuhiko Tsutsumi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Chain tensioning device
    • Patent number 5,702,318
    • Issue date Dec 30, 1997
    • Tsubakimoto Chain Co.
    • Hiroshi Hayafune
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Chain guide device in engine
    • Patent number 5,366,418
    • Issue date Nov 22, 1994
    • Tsubakimoto Chain Co.
    • Yuji Fukushima
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Chain guide having improved arm-shoe attachment feature
    • Patent number 5,318,482
    • Issue date Jun 7, 1994
    • Tsubakimoto Chain Co.
    • Masahiro Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tensioner having pad made of plastics
    • Patent number 5,088,966
    • Issue date Feb 18, 1992
    • Tsubakimoto Chain Co.
    • Tadasu Suzuki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Chain guide having shoe made of plastics
    • Patent number 5,045,032
    • Issue date Sep 3, 1991
    • Tsubakimoto Chain Co.
    • Tadasu Suzuki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    STATIONARY GUIDE FOR CHAIN TRANSMISSION
    • Publication number 20140342861
    • Publication date Nov 20, 2014
    • Koichi Shimosaka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    STATIONARY GUIDE FOR CHAIN TRANSMISSION
    • Publication number 20110218068
    • Publication date Sep 8, 2011
    • Tsubakimoto Chain Co.
    • Koichi Shimosaka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Hydraulic tensioner
    • Publication number 20050014587
    • Publication date Jan 20, 2005
    • Tatsuya Konishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Parts retaining panel and method of mounting and securing parts
    • Publication number 20040182981
    • Publication date Sep 23, 2004
    • Fumiaki Oba
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Movable guide for transmission device
    • Publication number 20040147350
    • Publication date Jul 29, 2004
    • Junya Kurohata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Tensioner having protrusion-preventing mechanism for a plunger
    • Publication number 20030125142
    • Publication date Jul 3, 2003
    • Hiroshi Hashimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...