Patents by Inventor Seongjun KHIM

Seongjun KHIM 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).

  • POROUS FILM WITH LOW DIELECTRIC PROPERTY AND MANUFACTURING METHOD THEREOF
    Publication number: 20250026887
    Abstract: A manufacturing method of a porous polyimide film, includes: preparing a polyamic acid solution at a concentration of 10 to 30 wt % by dissolving a diamine compound and a dianhydride in a solvent; applying the prepared polyamic acid solution to a substrate to prepare a film and then immersing the same in a non-solvent for 30 minutes to 180 minutes; and taking out the immersed film and thermally curing the same; and a porous polyimide film manufactured thereby.
    Type: Application
    Filed: August 25, 2023
    Publication date: January 23, 2025
    Applicant: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Ki-Ho NAM, Seongjun KHIM, Yun Chan HWANG