Patents by Inventor Gyeong Sik Choe

Gyeong Sik Choe 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).

  • AXIAL FLUX MOTOR STRUCTURE USING MAGNETIC LEVITATION FORCE AND ROTATIONAL FORCE
    Publication number: 20230412057
    Abstract: An axial flux motor structure uses a magnetic levitation force and a rotational force and includes a stator configured so that a coil unit is wound therearound, a permanent magnet unit configured to generate an air gap by generating a repulsive force with the coil unit, and a rotor configured to be fastened to the permanent magnet unit and coupled to a rotary shaft to rotate. A ratio of the number of slots of the stator and the number of poles of the rotor is 3:1.
    Type: Application
    Filed: December 12, 2022
    Publication date: December 21, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Hyung Kwan Jang, Hoo Dam Lee, Gyeong Sik Choe, Byung Ho Min, Tae Gyu Lee
  • MOTOR AND METHOD OF CONTROLLING THE SAME
    Publication number: 20230370005
    Abstract: A motor includes a stator on which an armature coil is wound, a rotor disposed inside the stator, a superconducting field coil being wound thereon and, a controller configured to control the motor, in which the controller is configured to control an armature current supplied from an AC source to the armature coil and a field current supplied from a DC source to the field coil, and charge at least a certain ratio of the field coil before starting the motor.
    Type: Application
    Filed: November 30, 2022
    Publication date: November 16, 2023
    Inventors: Hyung Kwan Jang, Hoo Dam Lee, Gyeong Sik Choe, Jun Hyeok Choi, Byung Ho Min, Tae Gyu Lee
  • MOTOR
    Publication number: 20230275501
    Abstract: A motor that is a wound field synchronous motor and includes a rotor and a stator. The rotor includes a plurality of winding portions configured to have a preset cross-section for generating a uniform effective air gap. The winding portions are spaced from each other a predetermined distance apart along a circumferential direction of the rotor. A field coil is wound around the plurality of winding portions.
    Type: Application
    Filed: December 5, 2022
    Publication date: August 31, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Hyung Kwan Jang, Hoo Dam Lee, Gyeong Sik Choe, Byung Ho Min, Tae Gyu Lee