ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,268, issued on Nov. 4, was assigned to Canon K.K. (Tokyo).
"Liquid ejection device" was invented by Atsushi Omura (Kanagawa, Japan) and Hiroki Hayashi (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection device includes: an ejection head configured to eject a liquid; a first storage container configured to store the liquid to be supplied to the ejection head; and a second storage container attachable to and detachable from the liquid ejection device and connectable with the first storage container, the second storage container includes a storage space for containing the liquid to be supplied to the first storage container...