Hewlett-packard Development Company, L.p.

Erik D Tomiainen

Lawrence H White

James A Feinn

David R Thomas

Thomas R Strand

Albert Nagao

An inkjet nozzle includes an aperture with a noncircular opening substantially defined by a polynomial equation. A droplet generator is also described which includes a firing chamber fluidically coupled to a fluid reservoir, a heating resistor and a nozzle. The nozzle includes an aperture forming a passage from the firing chamber to the exterior of the droplet generator through a top hat layer. The nozzle is defined by a closed polynomial and has a mathematically smooth and mathematically continuous shape around aperture's perimeter wall, with two protrusions extending into the center of the aperture.

Growing community of inventors

Albany, OR, United States of America

Erik D Tomiainen