US Patent Issued to UDC Ireland on Sept. 1 for "Charge transporting material, organic electroluminescent element, light emitting device, display device and illumination device" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,727,381, issued on Sept. 1, was assigned to UDC Ireland (Dublin).

"Charge transporting material, organic electroluminescent element, light emitting device, display device and illumination device" was invented by Kousuke Watanabe (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A charge transporting material which allows for a low driving voltage and is superior in luminous efficiency and durability is provided. The charge transporting material comprising a compound represented by any one of the general formula (1-1) to (1-3) wherein R111 to R114, R121 to R125 and R131 to R135, L111 to L113, and L121 to L123 are as defined in the specifica...