ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,052, issued on Aug. 19, was assigned to Ricoh Co. Ltd. (Tokyo).
"Passive mixer in jetting channels of a printhead" was invented by Nasser Budraa (La Crescenta, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Printheads that jet print fluids. In an embodiment, a printhead comprises a plurality of jetting channels, where each jetting channel of the plurality includes a diaphragm, a pressure chamber, and a nozzle configured to jet a print fluid. The printhead further comprises one or more intra-channel passive mixers that project from one or more vertical side walls of the jetting channel into a longitudinal flow path of the print fluid along a l...