Patents by Inventor Kyung-A Sung

Kyung-A Sung 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).

  • Structure of bipolar plate for direct methanol fuel cell and shape of flow path thereof and fuel cells including them
    Patent number: 7923163
    Abstract: The present invention relates to the structure of a bipolar plate for direction methanol fuel cell, the shape of a flow path and a fuel cell including them, more particularly, to the structure of a bipolar plate for direct methanol fuel cell using a flow path with a dispersion structure not the existing serpentine type for supplying a fuel to the new bipolar plate and functioning as a collector and the shape of a flow path. According to the present invention, a fluid flow resistance is decreased and a direct reaction region of a fluid and an electrode catalyst is increased in a bipolar plate, and therefore the performance of a fuel Cell can be improved.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: April 12, 2011
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jung-Ki Park, Ho-Young Jung, Ki-Yun Cho, Kyung-A Sung, Wan-Keun Kim, Seong-Nam Lee
  • Method for manufacturing composite membrane for polymer electrolyte fuel cell
    Publication number: 20070231556
    Abstract: The present invention relates to a method for manufacturing a polymer electrolyte fuel cell, and more particularly to a method for manufacturing a polymer composite membrane whose dimensional stability in accordance with hydration is good and a proton conductivity is improved by introducing a fluorinated polymer with a good excellent dimensional stability to sulfonated hydrocarbon-based polymers as proton conducting materials.
    Type: Application
    Filed: March 7, 2007
    Publication date: October 4, 2007
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Jung-Ki Park, Ho-Young Jung, Ki-Yun Cho, Wan-Ho Seol, Kyung-A Sung, Wan-Keun Kim
  • Structure of bipolar plate for direct methanol fuel cell and shape of flow path thereof and fuel cells including them
    Publication number: 20070160894
    Abstract: The present invention relates to the structure of a bipolar plate for direction methanol fuel cell, the shape of a flow path and a fuel cell including them, more particularly, to the structure of a bipolar plate for direct methanol fuel cell using a flow path with a dispersion structure not the existing serpentine type for supplying a fuel to the new bipolar plate and functioning as a collector and the shape of a flow path. According to the present invention, a fluid flow resistance is decreased and a direct reaction region of a fluid and an electrode catalyst is increased in a bipolar plate, and therefore the performance of a fuel cell can be improved.
    Type: Application
    Filed: January 12, 2007
    Publication date: July 12, 2007
    Inventors: Jung-Ki Park, Ho-Young Jung, Ki-Yun Cho, Kyung-A Sung, Wan-Keun Kim, Seong-Nam Lee