US Patent Issued to IDEMITSU KOSAN on June 2 for "Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,856, issued on June 2, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device" was invented by Satomi Tasaki (Tokyo), Masahiro Kawamura (Tokyo), Toshinari Ogiwara (Tokyo), Hitoshi Kuma (Tokyo), Kei Yoshida (Tokyo) and Keiji Okinaka (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound is represented by a formula (1) below, in which k is an integer of 0 or more, m is an integer of 1 or more, n is an integer of 2 or more. L is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 ring carbon atoms, CN is a cyano ...