ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,020, issued on May 20, was assigned to SANKYO SEISAKUSHO Co. (Tokyo).
"Rotational positioning device" was invented by Naoyuki Takahashi (Kikugawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a rotational positioning device capable of positioning a rotational angle at a target angle position with high precision. A rotational positioning device is provided with: a housing; a rotational member which is rotatable about a rotational member axial line and at least a part of which is accommodated in the housing; and at least one sensor installed in the housing. A graduated scale with a plurality of scale marks is formed integrally with...