ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,464, issued on June 10, was assigned to HIOKI E.E. Corp. (Nagano, Japan).
"Amplifier circuit and measurement apparatus" was invented by Kazuaki Haneda (Ueda, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An amplifier circuit includes an operational amplifier to amplify an input signal input to a non-inverting input terminal, first and second feedback units to feed back an output signal output from the operational amplifier to an inverting input terminal of the operational amplifier, and a coupling unit to AC couple the second feedback unit and the inverting input terminal. The first feedback unit is to, together with the coupling unit, as a f...