Patents by Inventor Min Cheol Ahn

Min Cheol Ahn 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).

  • Current limiting module and hybrid current limiter using different kinds of superconducting wires
    Patent number: 7675719
    Abstract: The present invention provides a current limiting module and a hybrid current limiter using different kinds of superconducting wires. The current limiting module includes a first superconducting wire that is wound in a predetermined direction, and a second superconducting wire that has quench characteristic different from the first superconducting wire and is wound to generate magnetic flux in a direction opposite to magnetic flux induced by the first superconducting wire. According to the present invention, inductance is generated due to unequal supply of fault current. Therefore, it is possible to prevent current from being suddenly increased, and to reduce the number of superconducting wires required to manufacture the current limiting module. Further, the hybrid current limiter does not need to include a separate coil for operating a fast switch.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: March 9, 2010
    Assignee: Industry-Academic Corporation Foundation, Yonsie University
    Inventors: Tae-Kuk Ko, Dong-Keun Park, Seong-Eun Yang, Young-Jae Kim, Ki-Sung Chang, Min-Cheol Ahn, Bok-Yeol Seok
  • CURRENT LIMITING MODULE AND HYBRID CURRENT LIMITER USING DIFFERENT KINDS OF SUPERCONDUCTING WIRES
    Publication number: 20090190274
    Abstract: The present invention provides a current limiting module and a hybrid current limiter using different kinds of superconducting wires. The current limiting module includes a first superconducting wire that is wound in a predetermined direction, and a second superconducting wire that has quench characteristic different from the first superconducting wire and is wound to generate magnetic flux in a direction opposite to magnetic flux induced by the first superconducting wire. According to the present invention, inductance is generated due to unequal supply of fault current. Therefore, it is possible to prevent current from being suddenly increased, and to reduce the number of superconducting wires required to manufacture the current limiting module. Further, the hybrid current limiter does not need to include a separate coil for operating a fast switch.
    Type: Application
    Filed: February 25, 2008
    Publication date: July 30, 2009
    Applicant: Industry-Academic Cooperation Foundation, Yonsei Universty
    Inventors: Tae-Kuk Ko, Dong-Keun Park, Seong-Eun Yang, Young-Jae Kim, Ki-Sung Chang, Min-Cheol Ahn, Bok-Yeol Seok
  • Pancake type bifilar winding module using high-tc superconducting wire and bobbin for winding therefor
    Patent number: 7301425
    Abstract: The present invention discloses a pancake-type bifilar winding module using a superconducting wire and a winding bobbin therefor.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: November 27, 2007
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Tae Kuk Ko, Duck Kwon Bae, Min Cheol Ahn
  • Pancake type bifilar winding module using high-tc superconducting wire and bobbin for winding therefor
    Publication number: 20060202787
    Abstract: The present invention discloses a pancake-type bifilar winding module using a superconducting wire and a winding bobbin therefor.
    Type: Application
    Filed: March 10, 2006
    Publication date: September 14, 2006
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Tae Ko, Duck Bae, Min Cheol Ahn