US Patent Issued to Mitsubishi Electric on Sept. 30 for "Abnormality diagnosis device and abnormality diagnosis method" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,523, issued on Sept. 30, was assigned to Mitsubishi Electric Corp. (Tokyo).

"Abnormality diagnosis device and abnormality diagnosis method" was invented by Toshihiko Miyauchi (Tokyo) and Makoto Kanemaru (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An abnormality diagnosis device performs determination for at least one of abnormality of an electric motor driven by an inverter driven at a predetermined operation frequency and abnormality of a motive power transmission mechanism which transmits motive power from the electric motor to a load, wherein spectrum peaks extracted through FFT analysis of detected current of the electric motor are an...