ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,354, issued on Sept. 16, was assigned to Canon K.K. (Tokyo).
"Liquid ejection head and ejection apparatus" was invented by Tatsurou Mori (Tokyo), Takuya Iwano (Tokyo) and Tomoki Tsuji (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection head includes an ejection element substrate, an electrical contact portion, a housing, and an opening/closing member. The ejection element substrate ejects liquid to perform recording. The electrical contact portion is electrically connected to an electrical wiring unit of an ejection apparatus to supply power to the ejection element substrate. The housing includes an opening portion int...