Patents by Inventor Oak-Jae Lee

Oak-Jae Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electric Vehicle Having Motor And Generator And Driving Method Thereof
    Publication number: 20120265381
    Abstract: The present invention relates to an electric vehicle having a motor generator and a driving method therefor, and more particularly, to an electric vehicle having a motor generator, which can control the operation ratio of a motor and a generator, and a driving method therefor.
    Type: Application
    Filed: July 7, 2009
    Publication date: October 18, 2012
    Inventor: Oak Jae Lee
  • Constant-power brushless DC motor and the generator thereby
    Patent number: 7884580
    Abstract: The present invention relates to a constant-power brushless DC motor and a generator using the same, and in particular, to a constant-power brushless DC motor and a generator using the same, which stably generates power upon load fluctuation. Since the stator is wound in parallel by phases and poles, the motor is realized to generate high power with low voltage and since the stator's winding is performed without interconnection, automatic production is realized to reduce costs and enable mass production. Accordingly, a generator constituted by using the above-described motor supplies high efficient power.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: February 8, 2011
    Inventor: Oak-Jae Lee
  • CONSTANT-POWER BRUSHLESS DC MOTOR AND THE GENERATOR THEREBY
    Publication number: 20100052451
    Abstract: The present invention relates to a constant-power brushless DC motor and a generator using the same, and in particular, to a constant-power brushless DC motor and a generator using the same, which stably generates power upon load fluctuation. Since the stator is wound in parallel by phases and poles, the motor is realized to generate high power with low voltage and since the stator's winding is performed without interconnection, automatic production is realized to reduce costs and enable mass production. Accordingly, a generator constituted by using the above-described motor supplies high efficient power.
    Type: Application
    Filed: December 14, 2006
    Publication date: March 4, 2010
    Inventor: Oak-Jae Lee