US Patent Issued to Proterial on July 7 for "Position detection device" (Japanese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,688, issued on July 7, was assigned to Proterial Ltd. (Tokyo).

"Position detection device" was invented by Yohei Shirakawa (Tokyo), Yoshiaki Yanagisawa (Tokyo) and Takahiro Sugiyama (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A position detection device, configured to detect a position of a shaft that moves forward and backward in an axial direction, is provided with an excitation coil that generates an alternating magnetic field; a target fixed to the shaft and interlinked with a magnetic flux of the alternating magnetic field; and a detection coil in which the magnetic flux of the alternating magnetic field is interlinked. The detection c...