US Patent Issued to MITSUBISHI ELECTRIC on July 21 for "Drive device and deterioration discrimination method" (Japanese Inventor)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,276, issued on July 21, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).

"Drive device and deterioration discrimination method" was invented by Shinsaku Maeda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive apparatus includes a power circuit and a deterioration determining device. The power circuit outputs, to a load, a current including a current component having a frequency determined by a natural frequency of at least one member of the load or a vibratory member to vibrate when receiving vibration resulting from an electromagnetic excitation force generated in the load or by a value of a natural number multiple of a rotation frequ...