ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,561, issued on Dec. 16, was assigned to LG Chem Ltd. (Seoul, South Korea).
"Ink composition, organic light-emitting device using same, and manufacturing method therefor" was invented by Ji Young Jung (Daejeon, South Korea) and Mi Kyoung Kim (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present specification relates to an ink composition including a first solvent represented by Chemical Formula 1 and a compound represented by Chemical Formula 2; an ink composition including a first solvent represented by Chemical Formula 1, a second solvent represented by Chemical Formula 3 or Chemical Formula 4, and a compound represented ...