ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,195, issued on April 29, was assigned to SHIMANO INC. (Sakai, Japan).
"Bicycle rear sprocket assembly" was invented by Hiroshi Fujita (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bicycle rear sprocket comprises a sprocket body, a plurality of sprocket teeth, an opening, and a torque-transmitting structure. The plurality of sprocket teeth extends radially outwardly from the sprocket body with respect to a rotational center axis of the bicycle rear sprocket. The opening has a minimum diameter that is smaller than a minimum outer diameter of a sprocket support body of a bicycle rear hub assembly. The torque-transmitting structure inclu...