ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,485, issued on Jan. 27, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Power amplifier" was invented by Takumi Sugitani (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power amplifier includes: a plurality of amplifiers; a tournament circuit including a plurality of transmission lines arranged in a tournament form and connected to the plurality of amplifiers; and a plurality of difference frequency short circuits each including an inductor and a capacitor connected in series to each other, wherein resonant frequencies of the plurality of difference frequency short circuits become smaller as the difference frequency short circuits are fa...