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Hirofumi Ogata

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Patents Grantslast 30 patents

  • Information Patent Grant

    Outer retainer for one-way clutch
    • Patent number 8,047,347
    • Issue date Nov 1, 2011
    • NSK-Warner K.K.
    • Hirofumi Ogata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    One-way clutch
    • Patent number 7,849,989
    • Issue date Dec 14, 2010
    • NSK-Warner K.K.
    • Hirofumi Ogata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Roller type one-way clutch and roller for the roller type one-way c...
    • Patent number 7,357,234
    • Issue date Apr 15, 2008
    • NSK-Warner K.K.
    • Hirofumi Ogata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    One-way clutch apparatus
    • Patent number 7,040,469
    • Issue date May 9, 2006
    • NSK-Warner K.K.
    • Hirobumi Shirataki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    End bearing and one-way clutch device
    • Patent number 6,755,292
    • Issue date Jun 29, 2004
    • NSK-Warner K.K.
    • Norihiro Yamamoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ratchet one-way clutch
    • Patent number 6,575,275
    • Issue date Jun 10, 2003
    • NSK-Warner K.K.
    • Kazuhiko Muramatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    One-way clutch device
    • Patent number 6,530,464
    • Issue date Mar 11, 2003
    • NSK-Warner K.K.
    • Hirofumi Ogata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    End bearings for one-way clutch, manufacturing process thereof, and...
    • Patent number 6,435,326
    • Issue date Aug 20, 2002
    • NSK-Warner K.K.
    • Hirobumi Shirataki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Roller type one-way clutch
    • Patent number 5,722,521
    • Issue date Mar 3, 1998
    • NSK-Warner K.K.
    • Toshio Awaji
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fixing structure for outer ring in one-way clutch
    • Patent number 5,634,540
    • Issue date Jun 3, 1997
    • NSK-Warner K.K.
    • Toshio Awaji
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Fixing structure for outer ring member in one-way clutch
    • Patent number 5,476,165
    • Issue date Dec 19, 1995
    • NSK-Warner K.K.
    • Toshio Awaji
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Serpentine-shaped sprag retainer of a sprag-synchronized one-way cl...
    • Patent number 4,960,189
    • Issue date Oct 2, 1990
    • NSK Warner Kabushiki Kaisha
    • Hirofumi Ogata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    OUTER RETAINER FOR ONE-WAY CLUTCH
    • Publication number 20090020389
    • Publication date Jan 22, 2009
    • NSK-Warner K.K.
    • Hirofumi OGATA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    ONE-WAY CLUTCH
    • Publication number 20080190728
    • Publication date Aug 14, 2008
    • NSK-Warner K.K.
    • Hiroki SEGAWA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    One-Way Clutch
    • Publication number 20080047796
    • Publication date Feb 28, 2008
    • NSK-Warner K.K.
    • Hirofumi OGATA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Roller type one-way clutch and roller for the roller type one-way c...
    • Publication number 20050284720
    • Publication date Dec 29, 2005
    • NSK-Warner K.K.
    • Hirofumi Ogata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    One-way clutch apparatus
    • Publication number 20050040001
    • Publication date Feb 24, 2005
    • NSK-Warner K.K.
    • Hirobumi Shirataki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    End bearing, one-way clutch device, and a method of manufacturing s...
    • Publication number 20020112933
    • Publication date Aug 22, 2002
    • NSK-Warner K.K.
    • Norihiro Yamamoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Ratchet one-way clutch
    • Publication number 20020005327
    • Publication date Jan 17, 2002
    • NSK-Warner K.K.
    • Kazuhiko Muramatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    One-way clutch device
    • Publication number 20010011623
    • Publication date Aug 9, 2001
    • Hirofumi Ogata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    End bearings for one-way clutch, manufacturing process thereof, and...
    • Publication number 20010001996
    • Publication date May 31, 2001
    • NSK-Warner K.K.
    • Hirobumi Shirataki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...