Patents by Inventor Henryk Birecki

Henryk Birecki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • ELECTRONIC PAPER WITH POROUS STANDOFF LAYER
    Publication number: 20150301426
    Abstract: An electronic paper device includes a ground plane, a charge receiving layer, and a porous stand off layer disposed over the charge receiving layer. An active layer is interposed between the ground plane and the charge receiving layer, the active layer including a plurality of microcapsules containing charged pigments. A system for writing information to electronic paper is also provided.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Inventors: Napoleon Leoni, Omer Gila, Henryk Birecki, Richard Fotland
  • Image forming apparatus having optical sensor system, optical sensor system having detection modules, and method thereof
    Patent number: 9110007
    Abstract: An optical sensor system is disclosed including a source module, a first detection module, and a second detection module. The source module includes a source housing unit having a source window member. The source module may emit a detection signal through the source window member. The first detection module and the second detection module are spaced apart from the source module.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: August 18, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Krzysztof Nauka, Seongsik Chang
  • Electronic paper with porous standoff layer
    Patent number: 9104082
    Abstract: An electronic paper device includes a ground plane, a charge receiving layer, and a porous stand off layer disposed over the charge receiving layer. An active layer is interposed between the ground plane and the charge receiving layer, the active layer including a plurality of microcapsules containing charged pigments. A system for writing information to electronic paper is also provided.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: August 11, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Napoleon Leoni, Omer Gila, Henryk Birecki, Richard Fotland
  • Rotatable printhead assembly
    Patent number: 9079439
    Abstract: A printing assembly includes a pressure control tank and a printhead assembly. The printhead assembly is in fluid communication with the pressure control tank while the printhead assembly and the pressure control tank are selectively rotatable into a plurality of different positions relative to one another.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: July 14, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Napoleon J Leoni, Henryk Birecki, Omer Gila
  • E-paper printing system
    Patent number: 9046733
    Abstract: An e-paper printing system comprising a set of electrodes comprising a number of electrodes to erase a portion of e-paper as the e-paper moves relative to the set of electrodes in which the set of electrodes causes a first electric field to be applied to the e-paper with a magnitude of the first electric field increasing at a first rate sufficiently high to cause the erasure of the portion of the e-paper, and causes a second electric field to be applied to the e-paper with a magnitude of the second electric field decreasing at a second rate that is sufficiently low to preserve the erasure of the portion of the e-paper.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: June 2, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Napoleon J Leoni, Omer Gila
  • Inkjet printers, ink stream modulators, and methods to generate droplets from an ink stream
    Patent number: 9022535
    Abstract: Ink jet printers, ink stream modulators, and methods to generate droplets from an ink stream are disclosed. An example method to generate droplets from an ink stream includes generating a stream of ink with an inkjet nozzle and modulating the stream of ink into a plurality of droplets by generating an alternating electrical field having a frequency based on a permittivity of the ink to cause a dielectrophoretic effect.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: May 5, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jun Zeng, Michael H. Lee, Henryk Birecki
  • E-PAPER PRINTING SYSTEM
    Publication number: 20150103395
    Abstract: An e-paper printing system comprising a set of electrodes comprising a number of electrodes to erase a portion of e-paper as the e-paper moves relative to the set of electrodes in which the set of electrodes causes a first electric field to be applied to the e-paper with a magnitude of the first electric field increasing at a first rate sufficiently high to cause the erasure of the portion of the e-paper, and causes a second electric field to be applied to the e-paper with a magnitude of the second electric field decreasing at a second rate that is sufficiently low to preserve the erasure of the portion of the e-paper.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 16, 2015
    Inventors: HENRYK BIRECKI, NAPOLEON J LEONI, OMER GILA
  • Reflection densitometer
    Patent number: 9003972
    Abstract: A method for determining optical density is disclosed. A first measurement is taken on a white area of a substrate (402). A second measurement is taken on an area of the substrate printed with ink (404). A relative optical density of the ink is determined using the first and second measurements (406).
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: April 14, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, William D. Holland, Omer Gila
  • Measurement device and method thereof
    Patent number: 8975901
    Abstract: Measurement devices, systems, and methods to measure a high field conductivity of a fluid are provided herein. The measurement device includes a fluid cell, a pair of electrodes, a voltage switch, and a measurement unit. The fluid cell is on an inclined plane to receive the fluid. The pair of electrodes are connected to the fluid cell. The pair of electrodes are spaced apart from one another to receive the fluid therebetween and positioned parallel to one another to pass an electrical current therethrough. The power unit provides a high voltage power supply to one electrode of the pair of electrodes. The measurement unit measures the electrical current that passes between the pair of electrodes through the fluid.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: March 10, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Omer Gila, Michael H Lee, William D Holland
  • E-paper printing system
    Patent number: 8941636
    Abstract: An e-paper printing system comprising a set of electrodes comprising a number of electrodes to erase a portion of e-paper as the e-paper moves relative to the set of electrodes in which the set of electrodes causes a first electric field to be applied to the e-paper with a magnitude of the first electric field increasing at a first rate sufficiently high to cause the erasure of the portion of the e-paper, and causes a second electric field to be applied to the e-paper with a magnitude of the second electric field decreasing at a second rate that is sufficiently low to preserve the erasure of the portion of the e-paper.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: January 27, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Napoleon J. Leoni, Omer Gila
  • Emulsion-based thermal inkjet inks
    Patent number: 8894761
    Abstract: Emulsion-based thermal inkjet inks include a high boiling point carrier fluid; a colorant; and vesicles comprising a low boiling point expellant fluid, and an ionic surfactant comprising molecules, each having a head with affinity to expellant fluid material and a tail with affinity to carrier fluid, the vesicles having a core defined by the heads of the surfactant molecules, the expellant fluid contained in the core, with the vesicles dispersed in the carrier fluid. A method for preparing the thermal inkjet inks is also disclosed.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 25, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Hou T. Ng, Howard S. Tom
  • Printers, methods, and apparatus to reduce aerosol
    Patent number: 8851622
    Abstract: Printers, methods, and apparatus to reduce aerosol are disclosed. An example apparatus to reduce aerosol includes a print head to generate droplets and aerosol, and to direct the droplets toward a print substrate, a first corona wire to generate first ions having a first electrical polarity to direct the aerosol toward the print substrate, and a second corona wire to generate second ions to direct the aerosol toward the print substrate, wherein the second ions have a second electrical polarity that is opposite the first electrical polarity.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 7, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Napoleon J Leoni, Omer Gila, Michael H Lee, Henryk Birecki
  • Techniques related to satellite aerosols
    Patent number: 8840222
    Abstract: Examples described herein illustrate techniques related to satellite aerosol generation. In some examples, aerosols are sensed based on the interaction between satellite aerosols and a corona discharge from a corona source.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: September 23, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Napoleon J Leoni, Henryk Birecki, Omer Gila
  • Charge spreading structure for charge-emission apparatus
    Patent number: 8830282
    Abstract: An apparatus includes a generator electrode, a discharge electrode that has an aperture, a dielectric structure between the generator electrode and the discharge electrode, and a charge spreading structure. The dielectric structure includes a charging region under the aperture. The charge spreading structure is on a surface of the charging region facing the aperture. The charge spreading structure is electrically disconnected from the generator electrode and the discharge electrode and spreads electrical charge carriers over underlying areas of the charging region.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: September 9, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Napoleon J. Leoni, Henryk Birecki
  • Presenting information on a card with a passive electronic paper display
    Patent number: 8830160
    Abstract: With a card including a passive electronic paper display configured to display a visual image, a method of presenting information on a card includes selectively changing a visual image displayed on the passive electronic paper display to update information represented by the visual image, and wherein the card is sized to be carried by a user.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: September 9, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Omer Gila, Napoleon J. Leoni, Henryk Birecki
  • SYSTEMS AND METHODS FOR WRITING ON AND USING ELECTRONIC PAPER
    Publication number: 20140240299
    Abstract: Example systems and methods for writing on electronic paper (“e-paper”) are described. In one example, a system for writing information on electronic paper includes a writing module comprising an array of electrodes. The writing module is configured to selectively operate one or more electrodes in the array of electrodes to write information on the electronic paper. The system also includes a compliant mechanism coupled to the writing module to establish contact between the writing module and the electronic paper.
    Type: Application
    Filed: March 19, 2014
    Publication date: August 28, 2014
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Omer Gila, Napoleon J. Leoni, Henryk Birecki
  • APPARATUS, PRINTERS, AND METHODS TO REMOVE MATERIAL FROM A PRINTER SURFACE
    Publication number: 20140150680
    Abstract: Apparatus, printers, and methods to remove material from a printer surface are disclosed. An example apparatus includes a fluid remover to remove printing material from a printer surface, and a coating material reservoir to store coating material and to apply the coating material to the fluid remover to reduce an amount of printing material transferred to the fluid remover from the printer surface.
    Type: Application
    Filed: April 29, 2011
    Publication date: June 5, 2014
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Daihua Zhang, Napoleon J. Leoni, Henryk Birecki, Omer Gila
  • Printhead fabrication methods and printheads
    Patent number: 8736645
    Abstract: A printhead and related fabrication method are described with the printhead including a spacer layer.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: May 27, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Napoleon J. Leoni, Omer Gila, Cary G. Addington, Paul H. McClelland, Henryk Birecki
  • Apparatus for capturing aerosols
    Patent number: 8727488
    Abstract: Apparatus for capturing aerosols are disclosed. An example apparatus described herein includes a corona wire, and a nonconductive housing comprising a first cavity to expose a first portion of the corona wire, a second cavity to expose a second portion of the corona wire, and a chamber between the first and second cavities. A third portion of the corona wire is located within the chamber between the first and second portions of the corona wire.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: May 20, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael H. Lee, Napoleon J. Leoni, Henryk Birecki, Omer Gila
  • TECHNIQUES RELATED TO SATELLITE AEROSOLS
    Publication number: 20140092174
    Abstract: Examples described herein illustrate techniques related to satellite aerosol generation. In some examples, aerosols are sensed based on the interaction between satellite aerosols and a corona discharge from a corona source.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicants: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Napoleon J. Leoni, Henryk Birecki, Omer Gila