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Yoshinobu Akamatsu

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  • Kuwana, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sensor-equipped axle unit having a built-in motor of in-wheel type
    • Patent number 8,307,931
    • Issue date Nov 13, 2012
    • NTN Corporation
    • Yoshinobu Akamatsu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Rolling contact bearing
    • Patent number 8,104,968
    • Issue date Jan 31, 2012
    • NTN Corporation
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rolling bearing
    • Patent number 7,918,606
    • Issue date Apr 5, 2011
    • NTN Corporation
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Evaluation method for rolling bearing part
    • Patent number 7,877,215
    • Issue date Jan 25, 2011
    • NTN Corporation
    • Yoshinobu Akamatsu
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Lubricating device for rolling bearing
    • Patent number 7,819,587
    • Issue date Oct 26, 2010
    • NTN Corporation
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of predicting residual service life for rolling bearings and...
    • Patent number 7,813,906
    • Issue date Oct 12, 2010
    • The Chugoku Electric Power Co., Inc.
    • Isao Shiromaru
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Hydrodynamic bearing unit
    • Patent number 6,981,797
    • Issue date Jan 3, 2006
    • NTN Corporation
    • Natsuhiko Mori
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydrodynamic bearing unit
    • Patent number 6,712,514
    • Issue date Mar 30, 2004
    • NTN Corporation
    • Natsuhiko Mori
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rolling bearings and greases for the same
    • Patent number 6,417,143
    • Issue date Jul 9, 2002
    • NTN Corporation
    • Hidenobu Mikami
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rolling bearing for supporting rotary shaft of disk memory device
    • Patent number 6,332,717
    • Issue date Dec 25, 2001
    • NTN Corporation
    • Kouya Oohira
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Machine parts making rolling or sliding surfaces formed with discon...
    • Patent number 5,967,672
    • Issue date Oct 19, 1999
    • NTN Corporation
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Grease-lubricated rolling bearings
    • Patent number 5,915,844
    • Issue date Jun 29, 1999
    • NTN Corporation
    • Toshikazu Nanbu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Balls for ball bearing
    • Patent number 5,642,947
    • Issue date Jul 1, 1997
    • NTN Corporation
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bearing for use in compressor for air conditioner
    • Patent number 5,641,038
    • Issue date Jun 24, 1997
    • NTN Corporation
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rolling member
    • Patent number 5,397,188
    • Issue date Mar 14, 1995
    • NTN Corporation
    • Noriyoshi Yoshizuka
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Roller elements for roller bearing
    • Patent number 4,893,387
    • Issue date Jan 16, 1990
    • NTN Toyo Bearing Co., Ltd.
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    IN-WHEEL MOTOR DRIVING APPARATUS
    • Publication number 20130307320
    • Publication date Nov 21, 2013
    • Yoshinobu Akamatsu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    IN-WHEEL MOTOR ELECTRIC VEHICLE
    • Publication number 20130161104
    • Publication date Jun 27, 2013
    • NTN Corporation
    • Yoshinobu Akamatsu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Rolling Contact Bearing
    • Publication number 20090169144
    • Publication date Jul 2, 2009
    • NTN Corporation
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Lubricating device for rolling bearing
    • Publication number 20090046965
    • Publication date Feb 19, 2009
    • NTN Corporation
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Rolling bearing
    • Publication number 20090034892
    • Publication date Feb 5, 2009
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Method And Device For Assessing Residual Service Life Of Rolling Be...
    • Publication number 20070277613
    • Publication date Dec 6, 2007
    • Takuzo Iwatsubo
    • G01 - MEASURING TESTING
  • Information Patent Application

    Rolling bearing
    • Publication number 20060182377
    • Publication date Aug 17, 2006
    • NTN Corporation
    • Yoshinobu Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Method and apparatus for diagnosing residual life of rolling elemen...
    • Publication number 20050246150
    • Publication date Nov 3, 2005
    • THE CHUGOKU ELECTRIC POWER CO., LTD
    • Isao Shiromaru
    • G01 - MEASURING TESTING
  • Information Patent Application

    Hydrodynamic bearing unit
    • Publication number 20040247212
    • Publication date Dec 9, 2004
    • NTN Corporation
    • Natsuhiko Mori
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Hydrodynamic bearing unit
    • Publication number 20020025089
    • Publication date Feb 28, 2002
    • Natsuhiko Mori
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...