ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,038, issued on May 6, was assigned to Canon K.K. (Tokyo).
"Liquid ejection apparatus and liquid ejection head" was invented by Koichi Kubo (Kanagawa, Japan), Naozumi Nabeshima (Tokyo), Soji Kondo (Kanagawa, Japan) and Kazuya Yoshii (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection apparatus includes: a liquid storage unit; a liquid ejection head; a liquid communication path to communicate the liquid storage unit with the liquid ejection head; and a liquid pressurization unit to supply a liquid in the liquid storage unit to the liquid ejection head through the liquid communication path by pressurization. The liquid eje...