US Patent Issued to IDEMITSU KOSAN on July 28 for "Organic electroluminescent element, compound, and electronic equipment" (Japanese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,435, issued on July 28, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Organic electroluminescent element, compound, and electronic equipment" was invented by Satomi Tasaki (Tokyo), Kazuki Nishimura (Tokyo), Ryota Takahashi (Tokyo), Yuki Nakano (Tokyo), Maiko Iida (Tokyo) and Hiroaki Itoi (Tokyo).

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