US Patent Issued to YAMAHA HATSUDOKI on June 9 for "Marine propulsion system, vessel, and control method" (Japanese Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,558, issued on June 9, was assigned to YAMAHA HATSUDOKI K.K. (Shizuoka, Japan).

"Marine propulsion system, vessel, and control method" was invented by Yuta Miyagi (Shizuoka, Japan) and Morihiko Nanjo (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A marine propulsion system includes a first marine propulsion device and a second marine propulsion device. The first marine propulsion device includes an engine, a first propeller shaft to receive a driving force from the engine, and a first controller configured or programmed to control the engine. The second marine propulsion device includes an electric motor, a second propeller shaft to ...