Patents by Inventor Hee Chang Lee

Hee Chang 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).

  • Apparatus and method for analyzing motions using bio-impedance
    Publication number: 20040167420
    Abstract: Disclosed herein is an apparatus and method for measuring bio-impedance attributable to joint movement. The bio-impedance measuring apparatus includes a constant current source, current stimulus electrodes, at least two voltage detection electrodes, a demodulator, a signal gain and offset controller and an isolated amplifier.
    Type: Application
    Filed: September 23, 2003
    Publication date: August 26, 2004
    Inventors: Chul Gyu Song, Jeong Hwan Seo, Deok Won Kim, Soo Chan Kim, Dae Young Youn, Jong Chan Kim, Hee Chang Lee
  • Notebook computer
    Patent number: D516065
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: February 28, 2006
    Assignee: LG Electronics Inc.
    Inventors: Ji Yeon Lee, Hee Chang Lee
  • Notebook computer
    Patent number: D517542
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: March 21, 2006
    Assignee: LG Electronics Inc.
    Inventors: Ji Yeon Lee, Hee Chang Lee