US Patent Issued to YAMAHA HATSUDOKI on May 19 for "Marine propulsion system and marine vessel" (Japanese Inventor)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,281, issued on May 19, was assigned to YAMAHA HATSUDOKI K.K. (Shizuoka, Japan).

"Marine propulsion system and marine vessel" was invented by Yuji Ikegaya (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A marine propulsion system includes a main propulsion device operable to rotate in a right-left direction to change a direction of a thrust, an auxiliary propulsion device including an electric motor to drive an auxiliary thruster to generate a thrust, operable to rotate in the right-left direction to change a direction of the thrust, and having a maximum output smaller than a maximum output of the main propulsion device, and a controll...