ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,216, issued on March 18, was assigned to SHIMANO INC. (Sakai, Japan).
"Rear sprocket assembly" was invented by Hiroshi Fujita (Sakai, Japan) and Yusuke Oda (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rear sprocket assembly comprises a sprocket carrier, a first sprocket, and a second sprocket. The sprocket carrier includes at least one sprocket mounting portion having a first radial section and a second radial section. The first radial section has a first maximum axial length with respect to the axial direction. The second radial section has a second maximum axial length with respect to the axial direction. The second maximum axia...