ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,886, issued on June 23, was assigned to Canon K.K. (Tokyo).
"Liquid ejection unit and manufacturing method of the same" was invented by Zentaro Tamenaga (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A manufacturing method of a liquid ejection unit includes: arranging an electric wiring board on a print element board such that the electric wiring board abuts the print element board, the print element board including an ejection port configured to eject liquid, an energy generating element configured to generate energy for ejecting the liquid from the ejection port, and an electrode pad electrically connected to the energy generating...