Patents by Inventor Ko-Wen Jwo

Ko-Wen Jwo 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).

  • Method of arranging light emitting diodes supplied by AC power with low loss and smooth illumination in a high expandable structure
    Patent number: 8237380
    Abstract: A method of arranging light emitting diodes (LEDs) is disclosed. The method includes M virtual lateral lines and N virtual vertical lines, which form virtual intersection nodes at the intersections; disposing N-1 lateral LEDs in each virtual lateral line with one lateral LED placed between two adjacent virtual intersection nodes, connecting the positive terminal of one later LED to the positive terminal of one of the two adjacent lateral LEDs, and connecting the negative terminal of the one lateral LED to the negative terminal of the other adjacent lateral LED; disposing M-1 vertical LEDs in each virtual vertical line except for the first and last virtual vertical lines, connecting the positive and negative terminal of one vertical LED in the same way; and connecting the AC power to the first and last virtual vertical lines.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: August 7, 2012
    Assignee: King Diode Co., Ltd.
    Inventors: Kun-Chieh Chang, Ko-Wen Jwo
  • Method of Arranging Light Emitting Diodes Supplied by AC Power with Low Loss and Smooth Illumination in a High Expandable Structure
    Publication number: 20120032607
    Abstract: A method of arranging light emitting diodes (LEDs) supplied by AC power with low loss and smooth illumination in a high expandable structure is disclosed.
    Type: Application
    Filed: August 4, 2010
    Publication date: February 9, 2012
    Inventors: Kun-Chieh Chang, Ko-Wen Jwo
  • Power-diode driver having expansible isolated sub-drivers using single power source
    Patent number: 7541847
    Abstract: A power-diode driver uses a single power source to supply power to the sub-drivers inside. The sub-drivers are well isolated so that they can be safely and easily expanded by connecting to other device or driver. Thus, the power-diode driver has a changeable turn-on time and a highly modulated assembly. And, hence, the present invention is suitable for mass producing reliable power-diode drivers.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: June 2, 2009
    Assignee: National Central University
    Inventors: Kuo-Kai Shyu, Ko-Wen Jwo, Bo-Guang Zhu
  • Power-diode driver having expansible isolated sub-drivers using single power source
    Publication number: 20080231344
    Abstract: A power-diode-driver uses a single power source to supply power to the sub-drivers inside. The sub-drivers are well isolated so that they can be safely and easily expanded by connecting to other device or driver. Thus, the power-diode driver has a changeable turn-on time and a highly modulated assembly. And, hence, the present invention is suitable for mass producing reliable power-diode drivers.
    Type: Application
    Filed: March 28, 2007
    Publication date: September 25, 2008
    Applicant: National Central University
    Inventors: Kuo-Kai Shyu, Ko-Wen Jwo, Bo-Guang Zhu
  • Non-contact power system with load and gap detection
    Patent number: 7323964
    Abstract: A non-contact power system transfers power and signals simultaneously. The signals control the non-contact power system. And an operational frequency is operated on a resonant frequency so that there is no voltage alternating on power switch and power loss is reduced.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: January 29, 2008
    Assignee: National Central University
    Inventors: Kuo-Kai Shyu, Ko-Wen Jwo, Chih-Hung Lo