ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,806, issued on Nov. 3, was assigned to HITACHI ASTEMO LTD. (Hitachinaka, Japan).

"Propeller shaft" was invented by Shoichi Ichikawa (Hitachinaka, Japan), Daiki Tsutsumi (Hitachinaka, Japan), Toshiyuki Masuda (Hitachinaka, Japan) and Kenichiro Ishikura (Hitachinaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A propeller shaft for transmitting driving force of a vehicle includes a first shaft unit mounted to the vehicle via a vehicle mounting member. The first shaft unit includes a sleeve yoke, a stub shaft, and a tube. The sleeve yoke is connected to an output shaft of a transmission of the vehicle, and receives the driving force via the out...