US Patent Issued to IDEMITSU KOSAN on March 17 for "Organic electroluminescence element and electronic apparatus" (Japanese Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,849, issued on March 17, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Organic electroluminescence element and electronic apparatus" was invented by Satomi Tasaki (Tokyo), Kazuki Nishimura (Tokyo) and Yuki Nakano (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic electroluminescence device includes: an anode; a cathode; a first emitting layer; and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer contains, as a first host material, a first compound that has at least one group represented by a formula (11A) below and that is represented by a formula (1) below, the s...