ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,140, issued on April 14, was assigned to ROLAND DG Corp. (Shizuoka, Japan).
"Inkjet printer" was invented by Hironori Watanabe (Hamamatsu, Japan) and Akihiro Suzuki (Hamamatsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An inkjet printer includes an ink head including a nozzle surface with nozzles, and an attachment portion to enable attachment or detachment of an ink refill container storing ink to be ejected from the nozzles or a washing liquid refill container storing a washing liquid usable to wash the nozzle surface. The attachment portion includes a housing to accommodate the ink refill container or the washing liquid refill contain...