ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,441, issued on May 5, was assigned to TSUBAKIMOTO CHAIN Co. (Osaka, Japan).

"Cam clutch" was invented by Shotaro Yagi (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention aims to provide a cam clutch that enables smooth switching between operation modes while preventing the occurrence of cam engagement, and achieves noise reduction and long service life with a simple structure, without upsizing and increasing the number of components. The above problem is solved by providing a transmission member (161), which comes into contact with each of a first cam (131a) and a second cam (131b) that have different engaging directions...