Patents by Inventor Jong Geun Cha

Jong Geun Cha 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: 8820190
    Abstract: An active eco pedal apparatus with an the actuator which includes a VCM having a pair of first and second coils through which a current flows in opposite directions, and a pair of first and second magnets interacting with the electric field generated by the pair of the first and second coils, in which additional repulsive force is generated from the VCM supplied by the current, in addition to basic moving forces, thereby increasing thrust to push a pedal and thus remarkably improving the efficiency of an eco mode, in which since the actuator is controlled in a single-phase manner by a single-phase driver chip without using a hall sensor having high error possibility, it is possible to improve the reliability of operation, and in which since the number of FETs is reduced, the system is configured to have a compact size, and costs are lowered.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: September 2, 2014
    Assignee: DH Holdings Co., Ltd.
    Inventors: Jong-Sang Noh, Jung-Yeol An, Jong-Man Lee, Jong-Geun Cha, Mo-Se Kim
  • Publication number: 20120304799
    Abstract: An active eco pedal apparatus with an the actuator which includes a VCM having a pair of first and second coils through which a current flows in opposite directions, and a pair of first and second magnets interacting with the electric field generated by the pair of the first and second coils, in which additional repulsive force is generated from the VCM supplied by the current, in addition to basic moving forces, thereby increasing thrust to push a pedal and thus remarkably improving the efficiency of an eco mode, in which since the actuator is controlled in a single-phase manner by a single-phase driver chip without using a hall sensor having high error possibility, it is possible to improve the reliability of operation, and in which since the number of FETs is reduced, the system is configured to have a compact size, and costs are lowered.
    Type: Application
    Filed: May 18, 2012
    Publication date: December 6, 2012
    Applicant: DH HOLDINGS CO., LTD.
    Inventors: Jong-Sang NOH, Jung-Yeol AN, Jong-Man LEE, Jong-Geun CHA, Mo-Se KIM
  • Patent number: 7639126
    Abstract: The present invention provides an apparatus for lighting a brake lamp for a vehicle. The apparatus includes a brake pedal arm including a brake pedal at one end thereof, a pedal arm stop bracket integrally formed on the brake pedal arm at the upper side of the brake pedal arm, and a non-contacting switch that is separated from or comes in contact with the pedal arm stop bracket so as to be turned on or off depending on the operation of the brake pedal.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: December 29, 2009
    Assignee: Donghee Industrial Co., Ltd.
    Inventors: Jong Sang Noh, Jong Geun Cha, Jung Min Lee