ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,103, issued on Oct. 21, was assigned to Honda Motor Co. Ltd. (Tokyo).
"Propeller propulsion apparatus for ship" was invented by Takahiro Fukui (Wako, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "This propeller propulsion apparatus for a ship includes a first propeller, a second propeller disposed coaxially with the first propeller and rotating in a direction opposite to the first propeller, a first electric motor configured to drive the first propeller, a second electric motor configured to drive the second propeller, a control unit configured to control each of the first electric motor and the second electric motor, and a memory unit config...