ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,216, issued on Aug. 25, was assigned to Canon K.K. (Tokyo).

"Method for manufacturing liquid ejection head and liquid ejection head" was invented by Takanobu Manabe (Kanagawa, Japan), Junichiro Iri (Kanagawa, Japan) and Naoyuki Kamano (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a liquid ejection head including an element substrate having an ejection port forming member including an ejection port and an energy generating element for supplying energy for ejecting liquid to the ejection port includes preparing a wafer having the energy generating element and the ejection port forming member on a first surface, formi...