ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,336, issued on April 21, was assigned to Japan Aerospace Exploration Agency (Japan).
"Method for controlling fuel cell device" was invented by Yoshitsugu Sone (Chofu, Japan) and Motohiko Sato (Sagamihara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of controlling a fuel cell device includes: a step of purging a hydrogen supply unit of a fuel electrode and purging a gas supply unit of an oxidant electrode when an operation of the fuel cell device ends; a step of measuring a voltage between the fuel electrode and the oxidant electrode and determining whether the voltage is greater than a predetermined threshold; a step of continuing...