US Patent Issued to YAMAHA HATSUDOKI on May 26 for "Watercraft propulsion system, and watercraft" (Japanese Inventor)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,188, issued on May 26, was assigned to YAMAHA HATSUDOKI K.K. (Shizuoka, Japan).

"Watercraft propulsion system, and watercraft" was invented by Yuji Ikegaya (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A watercraft propulsion system includes a main propulsion device attachable to a hull, an auxiliary propulsion device attachable to the hull and having a lower rated output than the main propulsion device, a lift to move up and down a propeller of the auxiliary propulsion device between an underwater position and an above-water position, and a controller. The controller includes a plurality of control modes including a combined use mo...