ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,525, issued on Jan. 20, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).
"Power amplifier circuit" was invented by Shohei Imai (Kyoto, Japan) and Satoshi Tanaka (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power amplifier circuit includes a power splitter, a first amplifier, a second amplifier, a third amplifier, a fourth amplifier, a first bias circuit, a first line connecting the first bias circuit and the first amplifier, and a second line connecting the first bias circuit and the third amplifier on the same semiconductor substrate, in which the first line and the second line are formed such that a voltage drop amou...