ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,655, issued on Sept. 9, was assigned to FUJIFILM Dimatix Inc. (Lebanon, N.H.).
"Reducing size variations in funnel nozzles" was invented by Gregory DeBrabander (San Jose, Calif.) and Mark Nepomnishy (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are provided for making a funnel-shaped nozzle in a substrate. The process can include forming a first opening having a first width in a top layer of a substrate, forming a patterned layer of photoresist on the top surface of the substrate, the patterned layer of photoresist including a second opening, the second opening having a second width larger than the first width, reflowi...