ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,009, issued on May 20, was assigned to SK Innovation Co. Ltd. (Seoul, South Korea) and SK ie technology Co. Ltd. (Seoul, South Korea).
"Polyamideimide film" was invented by Hye Ri Kim (Daejeon, South Korea), Min Sang Park (Daejeon, South Korea), Sang Yoon Park (Daejeon, South Korea) and Ji Sang Jeong (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a polyamideimide film which has an excellent uniformity of a birefringence value and may provide excellent display quality."
The patent was filed on July 23, 2020, under Application No. 16/937,125.
*For further information, including images, charts and tables, please visi...