US Patent Issued to IDEMITSU KOSAN on Dec. 2 for "Organic electroluminescent element and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,452, issued on Dec. 2, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Organic electroluminescent element and electronic device" was invented by Hiromi Nakano (Sodegaura, Japan), Hisato Matsumoto (Sodegaura, Japan), Takushi Shiomi (Sodegaura, Japan), Toshinari Ogiwara (Sodegaura, Japan) and Keiji Okinaka (Sodegaura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic EL device includes an emitting layer, a first layer adjacent to an anode-side of the emitting layer, and a second layer adjacent to a cathode-side thereof. The emitting layer contains first to third compounds. The first and second layers contain compounds of Formulae (1) an...