Patents by Inventor Steven W. Steinfield

Steven W. Steinfield 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).

  • Patent number: 9041978
    Abstract: For each totally black pixel of image data to be printed using a fluid-ejection printing device, it is determined whether the pixel is part of a line feature or an area fill feature of the image data. Where the pixel is part of a line feature, a first printing mask selected that is optimized for printing line features. Where the pixel is part of an area fill feature, a second printing mask is selected that is optimized for printing area fill features. Each mask specifies a number of fluid droplets to be printed and positions where the fluid droplets are to be printed. The selected mask is applied to the pixel. The pixel is printed using the mask that has been applied. The fluid-ejection printing device prints the pixel by ejecting the number of fluid droplets specified by the mask at the positions specified by the mask.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: May 26, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ana Maria Cardells, Angel Martinez, Steven W. Steinfield
  • Patent number: 8602532
    Abstract: A fluid-application mechanism is to cause fluid to be applied onto media. An electrowetting mechanism is to generate an electric field to affect the fluid applied onto the media.
    Type: Grant
    Filed: April 30, 2011
    Date of Patent: December 10, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Dustin W. Blair, Steven W. Steinfield, Stephen W. Bauer, Dennis M. Huff
  • Patent number: 8454989
    Abstract: A method of manufacturing a bioactive fluid dose on an ingestible sheet, comprising the steps of advancing the ingestible sheet to a dispense position, and activating a fluid ejector to dispense essentially a drop of a bioactive fluid onto the ingestible sheet.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: June 4, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brian Craig Lee, Steven W. Steinfield, Winthrop D. Childers, Mark A. Van Veen, Mohammad M. Samii
  • Publication number: 20120273352
    Abstract: A fluid-application mechanism is to cause fluid to be applied onto media. An electrowetting mechanism is to generate an electric field to affect the fluid applied onto the media.
    Type: Application
    Filed: April 30, 2011
    Publication date: November 1, 2012
    Inventors: Dustin W. Blair, Steven W. Steinfield, Stephen W. Bauer
  • Publication number: 20110204085
    Abstract: A method of applying an orally-ingestible medicament to an orally-ingestible carrier comprising the steps of controlling a relative position between a fluid ejector and the carrier, and ejecting a plurality of drops of solution onto the carrier, wherein the plurality of drops includes a desired therapeutic quantity of the orally-ingestible medicament.
    Type: Application
    Filed: May 2, 2011
    Publication date: August 25, 2011
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Brian Craig LEE, Steven W. STEINFIELD, Winthrop D. CHILDERS, Mark A. VAN VEEN, Mohammad M. SAMII
  • Patent number: 8002382
    Abstract: Various embodiments and methods relating to wiping of a print head are disclosed.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: August 23, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steven W. Steinfield, Chandrasekhar Nadimpalli, Francisco Lopez Moral, Jason D. Jolly, Rafael Ulacia Portoles, Maria Dinares Argemi, Curtis N. Torgerson
  • Publication number: 20090135217
    Abstract: For each totally black pixel of image data to be printed using a fluid-ejection printing device, it is determined whether the pixel is part of a line feature or an area fill feature of the image data. Where the pixel is part of a line feature, a first printing mask selected that is optimized for printing line features. Where the pixel is part of an area fill feature, a second printing mask is selected that is optimized for printing area fill features. Each mask specifies a number of fluid droplets to be printed and positions where the fluid droplets are to be printed. The selected mask is applied to the pixel. The pixel is printed using the mask that has been applied. The fluid-ejection printing device prints the pixel by ejecting the number of fluid droplets specified by the mask at the positions specified by the mask.
    Type: Application
    Filed: September 29, 2008
    Publication date: May 28, 2009
    Inventors: Ana Maria Cardells, Angel Martinez, Steven W. Steinfield
  • Publication number: 20080266342
    Abstract: Various embodiments and methods relating to wiping of a print head are disclosed.
    Type: Application
    Filed: April 24, 2007
    Publication date: October 30, 2008
    Inventors: Steven W. Steinfield, Chadrasekhar Nadimpalli, Francisco Lopez Moral, Jason D. Jolly, Rafael Ulacia Portoles, Maria Dinares Argemi, Curtis N. Torgerson
  • Patent number: 7437104
    Abstract: A developer system component includes at least one surface configured to be driven so as to create fluid flow providing a shear force adjacent a cleaner.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: October 14, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ziv Gilan, Steven W. Steinfield
  • Patent number: 7275534
    Abstract: A medicament ejector is provided which includes an ejection mechanism and a service mechanism. The ejection mechanism includes at least one ejection port configured to eject a medicament-containing fluid. The service mechanism is selectively deployable to service the at least one ejection port.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: October 2, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D Childers, David Tyvoll, Steven W. Steinfield
  • Patent number: 7232226
    Abstract: A light-filtering element for a display device is provided. The element includes at least one filter having a chamber with a filtering fluid, the filtering fluid selectively disposed in an optical path, and a liquid motion actuator selectively configured to move the filtering fluid substantially into and out of the optical path.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: June 19, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Noah Lassar, Steven W. Steinfield, Mohammad M. Samii, Jack H. Schmidt, Matthew Giere, David Tyvoll, Winthrop D. Childers
  • Patent number: 7229152
    Abstract: In one embodiment, a fluid ejection device is configured to receive a signal and ejecting fluid in response thereto, including an ink ejecting nozzle layer having a substrate with first and second surfaces joined along an edge, an insulating feature located on the first surface adjacent the edge and a flexible lead that bends around the edge and lies flush against the insulating feature.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: June 12, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Noah C. Lassar, Steven W. Steinfield, Joseph E. Scheffelin, M. Jeffery Igelman, Frank J. Breti
  • Patent number: 7038867
    Abstract: A filter for a display system is provided which includes a fluid chamber having a selectively moveable filtering fluid, plural electrodes being coupled with the fluid chamber to accommodate establishment of an electric field whereby the filtering fluid may be selectively positioned in an optical path.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: May 2, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steven W. Steinfield, Mohammad M. Samii, Jack H. Schmidt, Matthew Giere, David Tyvoll, Noah Lassar, Winthrop D. Childers
  • Patent number: 6962715
    Abstract: A method of manufacturing a bioactive fluid dose on an ingestible sheet, comprising the steps of advancing the ingestible sheet to a dispense position, and activating a fluid ejector to dispense essentially a drop of a bioactive fluid onto the ingestible sheet.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: November 8, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brian Craig Lee, Steven W. Steinfield, Winthrop D. Childers, Mark A. Van Veen, Mohammad M. Samii
  • Patent number: 6932502
    Abstract: A mixing apparatus that includes a drop on demand fluid dispenser for adding an additive fluid to a receiver liquid to produce a composite liquid that includes the receiver liquid and the additive fluid.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: August 23, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, Mark A. Van Veen, Mohammad M Samii, Steven W Steinfield
  • Patent number: 6921175
    Abstract: A light-filtering element for a display device is provided. The element includes at least one filter having a chamber with a filtering fluid, the filtering fluid selectively disposed in an optical path, and a liquid motion actuator selectively configured to move the filtering fluid substantially into and out of the optical path.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: July 26, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Noah Lassar, Steven W. Steinfield, Mohammad M. Samii, Jack H. Schmidt, Matthew Giere, David Tyvoll, Winthrop D. Childers
  • Patent number: 6920000
    Abstract: A filter for a display system is provided which includes a fluid chamber having a selectively moveable filtering fluid, plural electrodes being coupled with the fluid chamber to accommodate establishment of an electric field whereby the filtering fluid may be selectively positioned in an optical path.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: July 19, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steven W. Steinfield, Mohammad M. Samii, Jack H. Schmidt, Matthew Giere, David Tyvoll, Noah Lassar, Winthrop D. Childers
  • Patent number: 6905217
    Abstract: A projector that has a narrow-spectrum light source to complement a broad-spectrum light source is disclosed. The broad-spectrum light source has a broad spectrum. The narrow-spectrum light source has a narrow spectrum complementing the broad spectrum of the broad-spectrum light source.
    Type: Grant
    Filed: February 21, 2004
    Date of Patent: June 14, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, Mark A. Van Veen, Mohammad M. Samii, William J. Allen, Jack H. Schmidt, Steven W. Steinfield, Wayne M. Richard, James R. Cole, James P. Dickie
  • Patent number: 6834930
    Abstract: An imaging device includes an optical sensor carried by a print carriage. An optical guide has an input end in optical alignment with a maintenance item and has an output end in optical alignment with a location to which the optical sensor may be moved by the print carriage.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: December 28, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steven W. Steinfield, Lidia Calvo Garcia, Patricia A. Hess, Teresa D. Kassen
  • Publication number: 20040196317
    Abstract: An imaging device includes an optical sensor carried by a print carriage. An optical guide has an input end in optical alignment with a maintenance item and has an output end in optical alignment with a location to which the optical sensor may be moved by the print carriage.
    Type: Application
    Filed: April 2, 2003
    Publication date: October 7, 2004
    Inventors: Steven W. Steinfield, Lidia Calvo Garcia, Patricia A. Hess, Teresa D. Kassen