ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,176, issued on July 14, was assigned to NGK INSULATORS Ltd. (Nagoya-City, Japan).

"Method of operating electrochemical device" was invented by Hirofumi Kan (Nagoya, Japan), Atsushi Torii (Handa, Japan), Kosuke Nakagawa (Nagoya, Japan) and Kazuki Iida (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating an electrochemical device includes the steps of: applying a first adsorption voltage to a function electrode while supplying a predetermined gas to the function electrode; and switching the first adsorption voltage to a second adsorption voltage higher than the first adsorption voltage while maintaining the supply of the...