ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,815, issued on Aug. 4, was assigned to Canon K.K. (Tokyo).
"Liquid discharge head" was invented by Manabu Otsuka (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge head includes a junction substrate including a first substrate and a second substrate joined with each other by an adhesive. A first surface of the first substrate to be joined with the second substrate is configured to have a plurality of first openings each configured to serve as a liquid passage, a first depressed portion capable of retaining the adhesive, and a second depressed portion configured to have a larger opening area than that of the first depre...