ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,749, issued on May 12, was assigned to Shimano Inc. (Osaka, Japan).

"Control device for human-powered vehicle and power transmission system" was invented by Satoshi Shahana (Osaka, Japan), Hayato Shimazu (Osaka, Japan), Mitsuhiko Kawasaki (Osaka, Japan) and Atsuhiro Emura (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A human-powered vehicle includes a crank axle, a first rotational body, a wheel, a second rotational body, a transmission body that transmits a driving force between the first rotational body and the second rotational body, a derailleur configured to operate the transmission body to change a transmission ratio, and a motor...