ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,579, issued on Dec. 30, was assigned to MITSUBISHI GAS CHEMICAL COMPANY INC. (Tokyo).
"Thermoplastic resin and optical lens including same" was invented by Noriyuki Kato (Tokyo), Shinya Ikeda (Niigata, Japan), Atsushi Motegi (Tokyo), Tatsunobu Ogata (Tokyo), Yutaro Harada (Tokyo), Katsushi Nishimori (Tokyo) and Kentaro Ishihara (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A thermoplastic resin including a constituent unit (A) derived from a monomer represented by general formula (1). In general formula (1), R1 and R11 each independently represent a hydrogen atom, an aryl group having 6-12 carbon atoms, or a linear or branched alkyl group ha...