ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,570, issued on March 24, was assigned to YANMAR HOLDINGS Co. LTD. (Osaka, Japan).

"Fuel cell ship" was invented by Yukihiko Kimura (Kunisaki, Japan), Takehiro Maruyama (Osaka, Japan), Yasuyoshi Yamaguchi (Osaka, Japan), Takuya Hiraiwa (Osaka, Japan) and Manabu Shinagawa (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied from a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes a tank compartment installed therein with a fuel tank that stores the fuel. The tank compartment is provided below a...