ALEXANDRIA, Va., March 26 -- United States Patent no. 12,262,556, issued on March 25, was assigned to Murata Manufacturing Co. Ltd. (Kyoto-fu, Japan).
"Power amplifier" was invented by Shaojun Ma (Nagaokakyo, Japan), Shigeki Koya (Nagaokakyo, Japan), Masayuki Aoike (Nagaokakyo, Japan), Shinnosuke Takahashi (Nagaokakyo, Japan), Yasunari Umemoto (Nagaokakyo, Japan) and Masatoshi Hase (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power amplifier that includes a substrate, and an emitter layer, a base layer, and a collector layer laminated in this order on a major surface of the substrate includes an electrical insulator provided adjacent to the emitter layer, an emitter electrode provided ...