ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,619, issued on April 7, was assigned to Honda Motor Co. Ltd. (Tokyo).
"Fuel cell system" was invented by Tomoyuki Inoue (Wako, Japan), Yuto Nakatani (Wako, Japan) and Ryoji Sakai (Wako, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel cell system executes a first valve drive operation by causing a power supply unit to output the first voltage to drive an electric-operated valve to open at a time of starting power generation by a fuel cell stack, and executes a second valve drive operation by causing the power supply unit to output the second voltage to drive the electric-operated valve to open in a case where the electric-operated valve i...