US Patent Issued to IDEMITSU KOSAN on June 23 for "Organic electroluminescent element and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,861, issued on June 23, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Organic electroluminescent element and electronic device" was invented by Kazuki Nishimura (Tokyo) and Satomi Tasaki (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 (11) below and that is represented by a formula (1) below, the second emitting layer contain...