1
Ozgur Yildirim
Arun K Agarwal, Julie J Cox, Jules G Moritz, Ozgur Yildirim: Fluid ejection device. Hewlett Packard Development Company, October 7, 2008: US07431434 (5 worldwide citation)

A fluid ejection device includes a fluid chamber, a fluid restriction communicated with the fluid chamber, and a fluid channel communicated with the fluid restriction, wherein a width of the fluid restriction is in a range of approximately 8 microns to approximately 16 microns, and a length of the f ...


2
Ozgur Yildirim
Elizabeth A Fellner, James Pingel, Matthew David Giere, Satya Prakash, David W Jenkins, James A Feinn, Arun K Agarwal, Julie J Cox, Jules G Moritz, Ozgur Yildirim: Fluid ejection device. Hewlett Packard Development Company, April 14, 2009: US07517056 (1 worldwide citation)

A fluid ejection device includes a fluid chamber, a fluid restriction communicated with the fluid chamber, and a fluid channel communicated with the fluid restriction. The fluid restriction has a fluid restriction parameter defined as (2*W+2*H)*L/(H*W), wherein W is a width of the fluid restriction, ...


3
Ozgur Yildirim
Arun K Agarwal, Julie J Cox, Jules G Moritz, Ozgur Yildirim: Fluid ejection device. Hewlett Packard Company, November 30, 2006: US20060268067-A1

A fluid ejection device includes a fluid chamber, a fluid restriction communicated with the fluid chamber, and a fluid channel communicated with the fluid restriction, wherein a width of the fluid restriction is in a range of approximately 8 microns to approximately 16 microns, and a length of the f ...


4
Arun K Agarwal: Screen manager for data processing system. Wang Laboratories, Michael H Shanahan, Gary D Clapp, August 18, 1987: US04688167 (107 worldwide citation)

In a multi-tasking data processing system, each task may request that the operating system set up descriptor blocks which identify virtual screens for display of data on the video display. Under keyboard control, only one virtual screen is selected for display at a given time. The operating system r ...


5
Arun K Agarwal, Suzanne C Knapp, David R Lakness: Data structure for a document processing system. Wang Laboratories, Michael H Shanahan, December 15, 1987: US04713754 (49 worldwide citation)

A data structure for use in a document processing system corresponds to a document comprised of one or more Pages. Each Page is subdivided into one or more nonoverlapping Areas, each Area in turn being comprised of one or more types of Layers. Each Layer type is expressive of a particular type of in ...


6
Arun K Agarwal, Timothy L Weber: Reduced spray inkjet printhead orifice. Hewlett Packard Company, Raymond A Jenski, September 26, 2000: US06123413 (47 worldwide citation)

A printhead having reduced spray includes orifi from which ink is expelled by an ink ejector. The orifi employ an aperture at the outer surface of the orifice plate having two orthogonal dimensions with one dimension having a greater magnitude than the other. The aperture is further defined by two n ...


7
Arun K Agarwal, Jennifer Korngiebel, Kit Christopher Baughman, Matthew D Giere, Ronald A Askeland, Noah C Lassar, Satya Prakash, Neal W Meyer, Harold Lee Van Nice, Salim Khasawinah: High efficiency orifice plate structure and printhead using the same. Hewlett Packard Company, September 18, 2001: US06290331 (34 worldwide citation)

A novel polymeric orifice plate for a printhead. The plate includes a recess in the top surface thereof which terminates at a position between the top and bottom plate surfaces. The recess communicates with a bore which passes through the remainder of the plate and terminates at the bottom surface. ...


8
Arun K Agarwal: Screen manager multiple viewport for a multi-tasking data processing system. Wang Laboratories, Michael H Shanahan, February 21, 1989: US04807142 (34 worldwide citation)

A task control structure for transferring tasks from a storage device to a system memory and for controlling execution of tasks, and a document manager for loading document information in the form of document data structures from the storage device to the system memory and managing access to the dat ...


9
Robert C Maze, Timothy L Weber, Arun K Agarwal: Asymmetric ink emitting orifices for improved inkjet drop formation. Hewlett Packard Company, Raymond A Jenski, April 16, 2002: US06371596 (29 worldwide citation)

A printhead having reduced spray includes orifi from which ink is expelled by an ink ejector. The orifi employ an aperture at the outer surface of the orifice plate having an asymmetrical hourglass shape to cause the expelled ink drop to break off at the narrow end of the orifice aperture.


10
Kenneth J Courian, Arun K Agarwal: Counter-boring techniques for improved ink-jet printheads. Hewlett Packard Company, Lucinda Price, Law Offices of Michael Dryja, March 4, 2003: US06527370 (16 worldwide citation)

Novel designs and methods of manufacture of ink-jet printheads capable of providing ink-droplet-tail-break-off control and preventing meniscus overshoot in order to overcome the puddling, pen directionality, and ruffle problems associated with thermal-ink-jet printing are disclosed. A printhead for ...



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