ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,604, issued on June 23, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).

"Ink composition, film using the same, and electrophoretic display device" was invented by Jinsuop Youn (Suwon-si, South Korea), Minjun Kim (Suwon-si, South Korea), Bongyong Kim (Suwon-si, South Korea), YoungMin Kim (Suwon-si, South Korea), Young Woo Park (Suwon-si, South Korea), Chuljin Park (Suwon-si, South Korea), Jeongwoo Lee (Suwon-si, South Korea), Young Woong Jang (Suwon-si, South Korea), Hyunmoo Choi (Suwon-si, South Korea), Misun Kim (Suwon-si, South Korea), Janghyuk Kim (Suwon-si, South Korea), Heeje Woo (Suwon-si, South Korea) and Eunsun Yu (Suwon-si, South Korea).

According to t...