Patents by Inventor Ji Yong Eom

Ji Yong Eom 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).

  • Polymer electrolyte membrane for fuel cell and method for producing the same
    Patent number: 6902839
    Abstract: Disclosed is a polymer electrolyte membrane for a fuel cell, which restrains a crossover phenomenon of fuel and a decomposition of a polymer membrane over platinum, and shows outstanding power output and performance characteristics during operation of the fuel cell, and a method for producing the same. The method comprises the steps of blending a polymer matrix with a fluorinated ionomer of 3 to 50 wt % based on a weight of a polymer to produce a blended polymer solution; casting the blended polymer solution into a polymer membrane; and coating the fluorinated ionomer on both sides of the polymer membrane to produce a composite membrane.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: June 7, 2005
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jung Ki Park, Young Gi Lee, Ji Yong Eom
  • Polymer electrolyte membrane for fuel cell and method for producing the same
    Publication number: 20030224235
    Abstract: Disclosed is a polymer electrolyte membrane for a fuel cell, which restrains a crossover phenomenon of fuel and a decomposition of a polymer membrane over platinum, and shows outstanding power output and performance characteristics during operation of the fuel cell, and a method for producing the same. The method comprises the steps of blending a polymer matrix with a fluorinated ionomer of 3 to 50 wt % based on a weight of a polymer to produce a blended polymer solution; casting the blended polymer solution into a polymer membrane; and coating the fluorinated ionomer on both sides of the polymer membrane to produce a composite membrane.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventors: Jung Ki Park, Young Gi Lee, Ji Yong Eom