US Patent Issued to KYULUX on Aug. 25 for "Compound, light-emitting material, delayed fluorescence material, and organic optical device" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,860, issued on Aug. 25, was assigned to KYULUX INC. (Fukuoka, Japan).

"Compound, light-emitting material, delayed fluorescence material, and organic optical device" was invented by Hiroaki Ozawa (Fukuoka, Japan), Masataka Yamashita (Fukuoka, Japan), Shuo-Hsien Cheng (Fukuoka, Japan) and YuSeok Yang (Fukuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The compound represented by the following formula is useful as a light-emitting material. One of R1 to R5 is CN; another is Het-LA-*; other two or three are each a carbazolyl group, etc.; and the rest are others. Het is a heteroaryl group; and LA is a single bond or an arylene group."

The pat...