Joseph William Stellbrink

US Patent:

7147311, Dec 12, 2006

Filed:

Mar 25, 2004

Appl. No.:

10/808998

Inventors:

Joseph Stellbrink - Lebanon OR, US
Eric L. Ahlvin - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J 2/175
B01D 24/00
C08J 9/00

US Classification:

347 86, 210506, 521 50

Abstract:

A fluid supply media includes a material having pores and a lamellae inhibiting agent retained relative to the material proximate to the pores.

US Patent:

7325912, Feb 5, 2008

Filed:

Oct 6, 2004

Appl. No.:

10/960477

Inventors:

William E. Lewey - Albany OR, US
Eric L. Ahlvin - Corvallis OR, US
Joseph W. Stellbrink - Lebanon OR, US
Daniel Fradl - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J 2/175

US Classification:

347 86, 347 85

Abstract:

In one embodiment, a reservoir for holding a fluid includes a housing defining an enclosed chamber, the housing having a first opening therein at one part of the chamber and a second opening therein at a second part of the chamber above the first part of the chamber, a breachable seal sealing the second opening, and a circuitous tunnel exposing the chamber to the atmosphere through the second opening if the seal is breached.

US Patent:

7494215, Feb 24, 2009

Filed:

Oct 29, 2004

Appl. No.:

10/976632

Inventors:

Joseph Stellbrink - Lebanon OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J 29/13
B41J 2/17
B41J 2/175
B41J 2/015

US Classification:

347108, 347 84, 347 85, 347 86, 347 87, 347 20

Abstract:

In one embodiment, an ink cartridge for inkjet printing includes a housing enclosing four separate chambers for holding ink and a printhead affixed to the housing and operatively connected to each of the four ink chambers.

US Patent:

7567370, Jul 28, 2009

Filed:

Jul 26, 2007

Appl. No.:

11/881215

Inventors:

Joseph Stellbrink - Lebanon OR, US
Peter Fricke - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G02F 1/03
G09G 5/02

US Classification:

359259, 345591, 345694, 345698, 345690, 345 76, 313506

Abstract:

A color display including: a stacked plurality of color layers, each layer being selectively reflective or absorptive of light in a different portion of the human visible spectrum; wherein, the layers are each configured as a plurality of independently addressable picture elements, at least some of the picture elements in at least one of the layers are superimposed in the stack over at least some picture elements in at least one other of the layers, and a resolution of the superimposed picture elements in the at least one of the layers is different from the resolution of the superimposed picture elements in the at least one other of the layers.

US Patent:

8036456, Oct 11, 2011

Filed:

Jul 18, 2007

Appl. No.:

11/879652

Inventors:

Joseph W. Stellbrink - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06K 9/00
G06K 9/40
G06K 9/36
G06F 15/00

US Classification:

382167, 382254, 382280, 708404

Abstract:

An image rendering method for masking a visual defect is disclosed. In an embodiment, the method includes determining a location of the visual defect, identifying a plurality of sub-pixels neighboring the visual defect and utilizing contrast sensitivity functions and visual masking characteristics of a human visual system to optimize adjustments to the plurality of neighboring sub-pixels to mask the visual defect.

US Patent:

8619012, Dec 31, 2013

Filed:

Jul 19, 2007

Appl. No.:

12/374977

Inventors:

Peter Fricke - Corvallis OR, US
Alan R Arthur - Salem OR, US
Joseph Stellbrink - Corvallis OR, US
Tim R Koch - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G09G 3/36

US Classification:

345 97, 345 88, 345 87, 349 85

Abstract:

A display element () corresponds to a pixel of a display. The display element includes a top electrode () connected to a first addressable line of the display, and a bottom electrode () connected to a second addressable line of the display. The display element includes a display mechanism () situated between the top electrode and the bottom electrode and having a number of individually turned-on steps. Each individually turned-on step has a turn-on voltage threshold at which the step is turned on upon a voltage applied between the top and the bottom electrodes equal to or greater than the turn-on voltage threshold. Each individually turned-on step has a turn-off voltage threshold at which the step is turned off upon a voltage applied between the top and the bottom electrodes equal to or less than the turn-off voltage threshold.

US Patent:

20050030336, Feb 10, 2005

Filed:

Aug 5, 2003

Appl. No.:

10/633619

Inventors:

Joseph Stellbrink - Lebanon OR, US
Craig Sunada - Vancouver WA, US
Eric Ahlvin - Corvallis OR, US
Joseph Elliot - Corvallis OR, US
Pierre Kaiser - Portland OR, US
Kevin O'Hara - Washougal WA, US

International Classification:

B41J002/165

US Classification:

347032000

Abstract:

An inkjet consumable cartridge having an inkjet cartridge having nozzles. The inkjet consumable cartridge also has an inkjet cartridge holding device for holding the inkjet cartridge, a cap configured to interface with the inkjet cartridge, and a cap actuator that, when actuated, moves the cap from a position where the cap does not interface with the inkjet cartridge to a position where the cap interfaces with the inkjet cartridge sealingly covering the nozzles. Furthermore, the consumable cartridge is removable from a printer as a self-contained unit.

US Patent:

20080018576, Jan 24, 2008

Filed:

Jul 23, 2006

Appl. No.:

11/492163

Inventors:

Peter James Fricke - Corvallis OR, US
Alan R. Arthur - Corvallis OR, US
Joseph W. Stellbrink - Corvallis OR, US
Tim R. Koch - Corvallis OR, US

International Classification:

G09G 3/36

US Classification:

345 88

Abstract:

A display element corresponds to a pixel of a display. The display element includes a first electrode connected to a first addressable line of the display, and a number of second electrodes, each of which is connected to a corresponding second addressable line of the display. The display element includes a display mechanism situated between the first and the second electrodes, and which has a number of individually turned-on steps organized into a number of groups corresponding to the number of second electrodes. For each group of the individually turned-on steps, each step of the group has a turn-on voltage threshold at which the step is turned on upon a voltage applied between the first electrode and the second electrode to which the group corresponds that is equal to or greater than the turn-on voltage threshold.