US Patent Issued to IDEMITSU KOSAN on May 13 for "Organic electroluminescence element and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,302,757, issued on May 13, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Organic electroluminescence element and electronic device" was invented by Takushi Shiomi (Chiyoda-ku, Japan), Toshinari Ogiwara (Chiyoda-ku, Japan) and Hiromi Nakano (Chiyoda-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound may include partial structures of formula (3-11B) and (31a) in one molecule:R314 being a single bond bonded to * in formula (31a), R300 being independently H or a substituent, or at least one of adjacent pairs of R300 are mutually bonded to form a ring, or R300 is a single bond bonded to another atom/structure in the molecule, one or more...