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Chang Jo Yu

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  • Suwon, KR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spindle motor having reception part in rotor hub
    • Patent number 8,896,173
    • Issue date Nov 25, 2014
    • Samsung Electro-Mechanics Co., Ltd.
    • Shin Young Cheong
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spindle motor
    • Patent number 8,585,289
    • Issue date Nov 19, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spindle motor
    • Patent number 8,467,145
    • Issue date Jun 18, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Hyun Ho Shin
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Hydrodynamic bearing assembly and motor having the same
    • Patent number 8,388,227
    • Issue date Mar 5, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spindle motor
    • Patent number 8,304,946
    • Issue date Nov 6, 2012
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Motor and driving device for recording disk
    • Patent number 8,198,771
    • Issue date Jun 12, 2012
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    HYDRODYNAMIC BEARING ASSEMBLY AND SPINDLE MOTOR INCLUDING THE SAME
    • Publication number 20130234551
    • Publication date Sep 12, 2013
    • SAMSUNG ELECTRO-MECHANICS CO., LTD.
    • Chang Jo YU
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    HYDRODYNAMIC BEARING ASSEMBLY AND SPINDLE MOTOR INCLUDING THE SAME
    • Publication number 20130162080
    • Publication date Jun 27, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo YU
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    SPINDLE MOTOR
    • Publication number 20130163116
    • Publication date Jun 27, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Hyun Ho SHIN
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    SPINDLE MOTOR
    • Publication number 20130147308
    • Publication date Jun 13, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo YU
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    SPINDLE MOTOR
    • Publication number 20130142461
    • Publication date Jun 6, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SPINDLE MOTOR
    • Publication number 20130129268
    • Publication date May 23, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Shin Young CHEONG
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    SPINDLE MOTOR
    • Publication number 20130099613
    • Publication date Apr 25, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Shin Young Cheong
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    SPINDLE MOTOR
    • Publication number 20130082554
    • Publication date Apr 4, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Spindle motor
    • Publication number 20130033137
    • Publication date Feb 7, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Spindle motor
    • Publication number 20130033138
    • Publication date Feb 7, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Spindle motor
    • Publication number 20130022298
    • Publication date Jan 24, 2013
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Hydrodynamic bearing assembly and motor having the same
    • Publication number 20120288223
    • Publication date Nov 15, 2012
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Motor and recording disk drive including the same
    • Publication number 20120127847
    • Publication date May 24, 2012
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Motor
    • Publication number 20120049677
    • Publication date Mar 1, 2012
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Motor and recording disc driving device
    • Publication number 20110317307
    • Publication date Dec 29, 2011
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Hydrodynamic bearing assembly and motor having the same
    • Publication number 20110101807
    • Publication date May 5, 2011
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Motor and driving device for recording disk
    • Publication number 20110031833
    • Publication date Feb 10, 2011
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Spindle motor
    • Publication number 20100156218
    • Publication date Jun 24, 2010
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Spindle motor
    • Publication number 20100148606
    • Publication date Jun 17, 2010
    • Samsung Electro-Mechanics Co., Ltd.
    • Chang Jo Yu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...