Albert R Nagao

20130021411, Jan 24, 2013

Mar 31, 2010

13/386866

James A. Feinn - San Diego CA, US
Albert Nagao - Corvallis OR, US
Thomas R. Strand - Corvallis OR, US
David R. Thomas - Corvallis OR, US
Lawrence H. White - Corvallis OR, US

B41J 2/14
B41J 2/05

347 47, 347 61

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.

20190023010, Jan 24, 2019

Sep 24, 2018

16/139716

- Houston TX, US
Albert Nagao - Corvallis OR, US
Thomas R. Strand - Corvallis OR, US
David R. Thomas - Corvallis OR, US
Erik D. Torniainen - Corvallis OR, US
Lawrence H. White - Corvallis OR, US

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. - Houston TX

B41J 2/14

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.

20180104953, Apr 19, 2018

Dec 7, 2017

15/834353

- Houston TX, US
David P. Markel - Albany OR, US
Albert Nagao - Corvallis OR, US
Thomas R. Strand - Corvallis OR, US
Paul A. Richards - Corvallis OR, US
Lawrence H. White - Corvallis OR, US
Erik D. Torniainen - Maple OR, US

B41J 2/14

In some examples, a fluid nozzle includes an aperture comprising a first lobe that is shaped as an ellipse, and a second lobe that has a non-circular shape and has a different size than a size of the first lobe. The fluid nozzle further includes protrusions between the first and second lobes extending inward and forming a throat between the first and second lobes.