ALEXANDRIA, Va., June 4 -- United States Patent no. 12,323,122, issued on June 3, was assigned to TDK Corp. (Tokyo).

"Filter circuit and multilayered filter device" was invented by Masahiro Tatematsu (Tokyo), Shuhei Sawaguchi (Tokyo), Yuta Ashida (Tokyo), Tetsuzo Goto (Tokyo), Yoshinori Matsumaru (Tokyo), Shigemitsu Tomaki (Tokyo) and Longfei Yi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A filter circuit includes a pair of balanced input ports, a pair of balanced output ports, first and second resonators provided in parallel between the pair of balanced input ports and the pair of balanced output ports in a circuit configuration, a first capacitor connected in parallel to the first resonator, and ...