ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,606, issued on May 20, was assigned to YAMAHA HATSUDOKI K.K. (Shizuoka, Japan).
"Outboard motor and marine vessel" was invented by Takuma Matsunaga (Shizuoka, Japan) and Tomohiro Hagi (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An outboard motor includes an outboard motor body, a steering shaft, a steering cylinder including a piston rod extending in a right-left direction of the outboard motor body, a piston fixed to the piston rod, and a cylinder body including an oil chamber and the piston therein, and an oil passage inside the piston rod and connected to the oil chamber. The steering cylinder is operable to rotate the steerin...