US Patent Issued to YAMAHA HATSUDOKI on March 25 for "Marine propulsion device and marine vessel" (Japanese Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,919, issued on March 25, was assigned to YAMAHA HATSUDOKI K.K. (Shizuoka, Japan).

"Marine propulsion device and marine vessel" was invented by Ryutaro Iwaki (Shizuoka, Japan), Junsei Suzuki (Shizuoka, Japan), Taichiro Nannichi (Shizuoka, Japan) and Tomoyuki Kashiwayama (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A marine propulsion device includes a controller configured or programmed to perform a control to suppress an engine rotation speed. The controller is configured or programmed to perform an initial misfire control to determine whether or not a cylinder of the engine is caused to misfire in order to suppress the engine ro...