ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,348, issued on June 30, was assigned to YAMAHA HATSUDOKI K.K. (Shizuoka, Japan).
"Marine propulsion system, control method therefor, and marine vessel" was invented by Shuichi Moromi (Shizuoka, Japan), Akihiro Tagata (Shizuoka, Japan), Yuta Kubota (Shizuoka, Japan), Katsutoshi Naito (Shizuoka, Japan), Koshiro Inaba (Shizuoka, Japan), Teppei Morishita (Shizuoka, Japan) and Kazumichi Yoshida (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A marine propulsion system includes a first propulsion device that is steerable, located at a stern of a hull, and includes a rudder, a second propulsion device that is steerable and located in front ...