Patents by Inventor Changmoo Choi

Changmoo Choi 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).

  • Patent number: 7913586
    Abstract: A steering wheel for a vehicle has a gap formed between a spoke and airbag cover that can be maintained as small as possible regardless of a hot blast process of a steering wheel. The steering wheel may include an armature member that connects a rim and a hub, an intermediate structure that overlaps and is fixed to the armature member and includes a groove at an end thereof facing an airbag cover, a reinforcement member that is fitted to the groove of the intermediate structure, and/or a cover that includes the reinforcement member, and is fixed to the intermediate structure and the reinforcement member so as to cover the intermediate structure.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: March 29, 2011
    Assignee: Hyundai Motor Company
    Inventors: Changmoo Choi, Byungwoo Noh
  • Publication number: 20090294202
    Abstract: A noise reduction device of a motor driven power steering system may include a worm gear shaft, one end of which is connected with a tilt bearing that is coupled to a housing and rotatably supports the worm gear shaft, a driving shaft connected to a motor, a power transmission member integrally fitted with the driving shaft of the motor, a coupling connected to one end of the driving shaft of the motor and integrally coupling the driving shaft of the motor to the worm gear shaft to be rotatable therebetween, wherein the coupling includes a coupling body, and an elastic cushion member formed on one or both lateral surfaces of the coupling to buffer vibration and/or noise.
    Type: Application
    Filed: December 19, 2008
    Publication date: December 3, 2009
    Applicant: Hyundai Motor Company
    Inventors: Changmoo CHOI, Kyungbok LEE
  • Publication number: 20090255366
    Abstract: A steering wheel for a vehicle has a gap formed between a spoke and airbag cover that can be maintained as small as possible regardless of a hot blast process of a steering wheel. The steering wheel may include an armature member that connects a rim and a hub, an intermediate structure that overlaps and is fixed to the armature member and includes a groove at an end thereof facing an airbag cover, a reinforcement member that is fitted to the groove of the intermediate structure, and/or a cover that includes the reinforcement member, and is fixed to the intermediate structure and the reinforcement member so as to cover the intermediate structure.
    Type: Application
    Filed: November 21, 2008
    Publication date: October 15, 2009
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Changmoo Choi, Byungwoo Noh