ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,365, issued on June 30, was assigned to ROHM Co. LTD. (Kyoto, Japan).
"Operational amplifier" was invented by Naohiro Nomura (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An operational amplifier includes a differential input stage that amplifies a differential input signal to generate an intermediate signal; an amplification stage including an output transistor that is connected between an output terminal and a fixed voltage line, and is driven according to the intermediate signal; and an assist circuit, wherein the assist circuit includes: a first transistor connected in parallel with the output transistor; and a drive circuit that ...