ALEXANDRIA, Va., July 7 -- United States Patent no. 12,673,493, issued on July 7, was assigned to Canon K.K. (Tokyo).
"Liquid ejection head and manufacturing method thereof" was invented by Seiichiro Yaginuma (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection head includes a nozzle plate where a nozzle for ejecting a liquid is provided, a substrate including a piezoelectric element for generating pressure for ejecting the liquid from the nozzle, and a wall member made of a resin and provided between the nozzle plate and the substrate to form a pressure chamber that communicates with the nozzle. A structure for connecting at least two side surfaces, among a plurality of side sur...