ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,237, issued on Aug. 5, was assigned to Honda Motor Co. Ltd. (Tokyo).
"Fuel cell stack" was invented by Yoichi Fukui (Wako, Japan), Naoki Inoue (Wako, Japan) and Yuta Ikeda (Wako, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In the fuel-cell stack, a bypass channel is formed between the first insulating plate and the second insulating plate. The bypass channel connects the second plate passage to the lower oxygen-containing gas discharge passage. An annular protrusion protruding toward the second plate passage is provided around the first plate passage. A lower part of an inner surface forming the first plate passage has an inclined section th...