ALEXANDRIA, Va., July 23 -- United States Patent no. 12,369,492, issued on July 22, was assigned to KYULUX INC. (Fukuoka, Japan).

"Composition of matter for use in organic light-emitting diodes" was invented by Shuo-Hsien Cheng (Fukuoka, Japan), Yong Joo Cho (Fukuoka, Japan), Yoshitake Suzuki (Fukuoka, Japan), Yu Seok Yang (Fukuoka, Japan), Naoto Notsuka (Fukuoka, Japan), Ayataka Endo (Fukuoka, Japan), Hayato Kakizoe (Fukuoka, Japan), Makoto Yoshizaki (Fukuoka, Japan) and Jorge Aguilera-Iparraguirre (Roslindale, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to compounds capable of emitting delayed fluorescence, and uses of the compounds in organic light-emitting diodes."...