US Patent Issued to KYULUX on Sept. 1 for "Organic light-emitting device and film" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,727,382, issued on Sept. 1, was assigned to KYULUX INC. (Fukuoka, Japan).

"Organic light-emitting device and film" was invented by Makoto Yoshizaki (Fukuoka, Japan), Songhye Hwang (Fukuoka, Japan), Kei Morimoto (Fukuoka, Japan), Ayataka Endo (Fukuoka, Japan), Masayuki Kurotaki (Fukuoka, Japan), Kousei Kanahara (Fukuoka, Japan) and Hayato Kakizoe (Fukuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic light-emitting device including a compound represented by each of the formulas has excellent luminescence characteristics. One of X1 and X2 is N, and the other is B; R1 to R26, A1, and A2 are H, D, or a substituent; X11 is O, S, etc.; A11 ...