US Patent Issued to SEIKO EPSON on Feb. 25 for "Ultrasonic motor, robot, and life diagnostic method of ultrasonic motor" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,237,781, issued on Feb. 25, was assigned to SEIKO EPSON Corp. (Tokyo).

"Ultrasonic motor, robot, and life diagnostic method of ultrasonic motor" was invented by Kiichi Kajino (Matsumoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ultrasonic motor includes a vibration section having a piezoelectric element configured to generate vibration by receiving a drive voltage, a driven section, a convex section connected to the vibration section and configured to transmit vibration of the vibration section to the driven section, a drive circuit configured to generate the drive voltage, an encoder configured to detect a movement amount of the driven s...