ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,401,948, issued on Aug. 26, was assigned to NIPPON TELEGRAPH AND TELEPHONE Corp. (Tokyo).

"Speaker system" was invented by Masahiro Fukui (Tokyo), Kazunori Kobayashi (Tokyo) and Noriyoshi Kamado (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Two speaker units are arranged on the right side from the center of a seat; two speaker units are arranged on the left side from the center of the seat; one of the two speaker units arranged on the right side is arranged at a position closer to the right ear of a user seated on the seat as compared with the other one of the two speaker units arranged on the right side; one of the two speaker units arranged on...