Patents by Inventor Kuan-Liang YEH

Kuan-Liang YEH 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).

  • POLYIMIDE PRECURSOR, RESIN COMPOSITION INCLUDING, AND POLYIMIDE FORMED FROM SUCH PRECURSOR, AND USE OF THE POLYIMIDE
    Publication number: 20220340754
    Abstract: A polyimide precursor includes a repeating unit of formulae (I) and (II): where R1 and R3 are each a tetravalent group of a tetracarboxylic dianhydride residue, and R2 and R4 are respectively a divalent group of a residue of a first-type diamine and a divalent group of a residue of a second-type diamine. The first-type diamine is represented by formula (III), and the second-type diamine is represented by formula (IV). A resin composition including the polyimide precursor, a polyimide formed from the polyimide precursor, and use of the polyimide are also disclosed.
    Type: Application
    Filed: April 14, 2022
    Publication date: October 27, 2022
    Inventors: Kuan-Liang YEH, Chi-Yen LIN