ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,872, issued on July 8, was assigned to The Japan Steel Works Ltd. (Tokyo).

"Abnormality detection apparatus, abnormality detection method, and non-transitory computer readable recording medium" was invented by Takashi Ochiiwa (Tokyo), Soma Mitani (Tokyo) and Masato Kawakita (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An abnormality detection apparatus for detecting an abnormality of a ball screw provided in an injection molding machine includes a current sensor configured to detect an alternating current of a motor for applying a driving force to the ball screw; and a computation unit configured to detect an abnormality of the ball screw ba...