Patents by Inventor Won Sun RYOO

Won Sun RYOO 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 for hydrophilizing porous membrane and method for manufacturing ion-exchange membrane using same
    Patent number: 11110401
    Abstract: In one exemplary embodiment of the present invention, there are provided a method of hydrophilizing a porous membrane which includes treating a porous membrane with plasma in the presence of a mixed gas containing sulfur dioxide (SO2) and oxygen (O2), and a method of preparing an ion-exchange membrane using the same.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: September 7, 2021
    Assignees: W-SCOPE KOREA CO., LTD., W-SCOPE CHUNGJU PLANT CO., LTD.
    Inventors: Kyung Seok Yoon, Byung Hyun Kim, Won Sun Ryoo, Myung Su Jung, Bom Yi Lee
  • METHOD FOR HYDROPHILIZING POROUS MEMBRANE AND METHOD FOR MANUFACTURING ION-EXCHANGE MEMBRANE USING SAME
    Publication number: 20200038813
    Abstract: In one exemplary embodiment of the present invention, there are provided a method of hydrophilizing a porous membrane which includes treating a porous membrane with plasma in the presence of a mixed gas containing sulfur dioxide (SO2) and oxygen (O2), and a method of preparing an ion-exchange membrane using the same.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 6, 2020
    Applicant: W-SCOPE KOREA CO., LTD.
    Inventors: Kyung Seok YOON, Byung Hyun KIM, Won Sun RYOO, Myung Su JUNG, Bom Yi LEE