US Patent Issued to Proterial on July 14 for "Rotation angle detection device" (Japanese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,804, issued on July 14, was assigned to Proterial Ltd. (Tokyo).

"Rotation angle detection device" was invented by Yukio Ikeda (Tokyo) and Masanori Sagawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotation angle detection device includes at least one target rotating in unison with a shaft, a rotating member for rotating at a different rotation speed from the shaft as the shaft rotates, a first sensor whose output signal changes when the target is approached, a second sensor that detects the rotation angle of the rotating member within one rotation, and a computing section that calculates the absolute angle of the shaft based on the outp...