Patents by Inventor Yong-Ji Kwon

Yong-Ji Kwon 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: 9271086
    Abstract: A flat-type speaker having a damper-lead plate of a PCB voice coil plate includes a pair of magnetic bodies having a magnet and a yoke formed side-by-side, separated at a predetermined interval; a voice coil plate inserted between the magnetic bodies, and having printed thereon a voice coil with a spiral pattern; a first damper-lead plate physically separated from a second damper-lead plate, each having +, ? terminals formed on the front ends thereof, the first and the second damper-lead plates each equipped with a coil plate spline, which adheres to the upper end of the voice coil plate, and at least one wing spline having one end thereof connected to the coil plate spline and the other end connected to the terminals; and a vibration plate, which vibrates from the vibration received from the voice coil plate, while being contacted to the upper end portion of the damper-lead plate.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: February 23, 2016
    Assignee: EXELWAY INC.
    Inventors: Dong-Man Kim, Yong-Ji Kwon
  • Publication number: 20140044287
    Abstract: The present invention relates to a flat type speaker, and more particularly, to a flat type speaker having a damper-lead plate of a PCB voice coil plate, which improves the quality deterioration due to the reduction of production process and the disconnection of a lead wire, by being attached to the top of a voice coil plate, increases vibration efficiency, and eliminates the lead wire connection of the voice coil.
    Type: Application
    Filed: February 13, 2012
    Publication date: February 13, 2014
    Applicant: EXELWAY INC.
    Inventors: Dong-Man Kim, Yong-Ji Kwon