ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,500, issued on Jan. 13, was assigned to Proterial Ltd. (Tokyo).
"Position detection device" was invented by Yohei Shirakawa (Tokyo), Yuta Sugiyama (Tokyo), Yoshiaki Yanagisawa (Tokyo), Yoshitake Ageishi (Tokyo) and Yukio Ikeda (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A position detection device configured to detect a position of a moving member that moves back and forth in a predetermined moving direction is provided with an exciting coil arranged to extend in the moving direction along the moving member, a detection coil that, by a magnetic field generated by the exciting coil, outputs a voltage corresponding to a position of a detecti...