ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,873, issued on April 7, was assigned to NIPPON STEEL Corp. (Tokyo).
"Excitation waveform determination device, motor drive device, excitation waveform determination method, motor drive method, and program" was invented by Masahito Kamikawabata (Tokyo) and Rei Honma (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An excitation waveform determination device (100) sets an initial candidate solution group (IS) and a new candidate solution group (US) as one or a plurality of candidate groups of an excitation waveform based on a harmonic superimposition condition (HC) being information that specifies a harmonic to be superimposed on a fundamental wa...