US Patent Issued to IDEMITSU KOSAN on Jan. 20 for "Organic electroluminescent element and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,984, issued on Jan. 20, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Organic electroluminescent element and electronic device" 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 a first compound represented by a formula (101) below as a first host material, the second emitting layer contains a second compound represented by a formula (2) below a...