Patents by Inventor Shun-Chi Yang

Shun-Chi Yang 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).

  • Precision printed circuit board testing tool
    Patent number: 7708607
    Abstract: A precision printed circuit board testing tool includes a testing tube, having a hollow chamber for installing a second resilient element, and the testing tube being electrically connected to a second testing line; a second testing element, installed in the hollow chamber, and having a second chamber and an opening, and the second testing element being pressed against by the second resilient element; a first testing element, having an internal bushing, a first resilient element and a probe, and including a first chamber for installing the first resilient element, and the probe being installed in the first chamber and pressed against by the first resilient element, and the first testing element being electrically connected to a first testing line. The testing tool is used for testing a PCB circuit with micro resistance to prevent defectives and damages of electronic components.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: May 4, 2010
    Assignee: Unitech Printed Circuit Board Corp.
    Inventors: Po-Wen Kuo, Shun-Chi Yang
  • Precision printed circuit board testing tool
    Publication number: 20100055995
    Abstract: A precision printed circuit board testing tool includes a testing tube, having a hollow chamber for installing a second resilient element, and the testing tube being electrically connected to a second testing line; a second testing element, installed in the hollow chamber, and having a second chamber and an opening, and the second testing element being pressed against by the second resilient element; a first testing element, having an internal bushing, a first resilient element and a probe, and including a first chamber for installing the first resilient element, and the probe being installed in the first chamber and pressed against by the first resilient element, and the first testing element being electrically connected to a first testing line. The testing tool is used for testing a PCB circuit with micro resistance to prevent defectives and damages of electronic components.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 4, 2010
    Applicants: UNITECH PRINTED CIRCUIT BOARD CORP., NAN JUEN INTERNATIONAL CO., LTD.
    Inventors: Po-Wen Kuo, Shun-Chi Yang