US Patent Issued to IDEMITSU KOSAN on July 15 for "Organic electroluminescent element and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,364,160, issued on July 15, was assigned to IDEMITSU KOSAN Co. LTD. (Chiyoda-ku, Japan).

"Organic electroluminescent element and electronic device" was invented by Toshinari Ogiwara (Sodegaura, Japan), Satomi Tasaki (Sodegaura, Japan), Masahiro Kawamura (Sodegaura, Japan), Keiji Okinaka (Sodegaura, Japan) and Yoshiaki Takahashi (Sodegaura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic electroluminescence device includes: an anode; an emitting layer; and a cathode, the emitting layer containing a first material and a second material represented by a formula (21) below. The first material has a singlet energy larger than a singlet energy...