Patents by Inventor Steve Steinfield

Steve 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).

  • Nozzle distribution
    Patent number: 7758137
    Abstract: A fluid ejection device includes a die having a plurality of nozzles variously configured according to a predetermined intended distribution. The fluid ejection device also includes a controller configured to set a mean drop volume of the die by selectively firing selected nozzles of the die.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: July 20, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Keller, Ronald A. Askeland, Steve Steinfield, Wayne Richard
  • Nozzle distribution
    Publication number: 20070257952
    Abstract: A fluid ejection device includes a die having a plurality of nozzles variously configured according to a predetermined intended distribution. The fluid ejection device also includes a controller configured to set a mean drop volume of the die by selectively firing selected nozzles of the die.
    Type: Application
    Filed: July 9, 2007
    Publication date: November 8, 2007
    Inventors: David Keller, Ronald Askeland, Steve Steinfield, Wayne Richard
  • Nozzle distribution
    Patent number: 7249815
    Abstract: A fluid ejection device includes a die having a plurality of nozzles variously configured according to a predetermined intended distribution. The fluid ejection device also includes a controller configured to set a mean drop volume of the die by selectively firing selected nozzles of the die.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: July 31, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Keller, Ronald A. Askeland, Steve Steinfield, Wayne Richard
  • Mixing apparatus
    Patent number: 7237942
    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: February 9, 2005
    Date of Patent: July 3, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D Childers, Mark A Van Veen, Mohammad M Samli, Steve Steinfield
  • Fluid-ejection assembly
    Patent number: 7086716
    Abstract: A fluid-ejection assembly of one embodiment is disclosed comprising first and second arrays of fluid-ejection mechanisms, first and second service stations, and first and second drive mechanisms. The first array ejects fluid onto media; the first service station is to service the first array. The second array ejects fluid onto the media; the second service station is to service the second array. The first drive mechanism moves the first array between a first position to eject fluid onto the media and a second position at the first service station, while the second array ejects fluid onto the media in place of the first array. The second drive mechanism moves the second array between a third position to eject fluid onto the media and a fourth position at the second service station while the first array ejects fluid onto the media in place of the second array.
    Type: Grant
    Filed: October 25, 2003
    Date of Patent: August 8, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steve Steinfield, Scott Hock, Myron A. Bezenek, Victor T. Escobedo, Kenneth J. Courian, Mohammad M. Samii, Juan C. Vives, Antoni Murcia, David Berardelli
  • Calibrating a first color printing technology based on color differences with a second color printing technology
    Patent number: 7027157
    Abstract: A method of an embodiment of the invention is disclosed that outputs a first color calibration target using a first color printing technology onto media that has a second color calibration target already output thereon using a second color printing technology. The color differences between the first and the second color calibration targets are determined. The first color printing technology is calibrated, based on the color differences between the first and the second color calibration targets.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: April 11, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steve Steinfield, James Kelley
  • Nozzle distribution
    Publication number: 20050168506
    Abstract: A fluid ejection device includes a die having a plurality of nozzles variously configured according to a predetermined intended distribution. The fluid ejection device also includes a controller configured to set a mean drop volume of the die by selectively firing selected nozzles of the die.
    Type: Application
    Filed: January 30, 2004
    Publication date: August 4, 2005
    Inventors: David Keller, Ronald Askeland, Steve Steinfield, Wayne Richard
  • Fluid-ejection assembly
    Publication number: 20050088479
    Abstract: A fluid-ejection assembly of one embodiment is disclosed comprising first and second arrays of fluid-ejection mechanisms, first and second service stations, and first and second drive mechanisms. The first array ejects fluid onto media; the first service station is to service the first array. The second array ejects fluid onto the media; the second service station is to service the second array. The first drive mechanism moves the first array between a first position to eject fluid onto the media and a second position at the first service station, while the second array ejects fluid onto the media in place of the first array. The second drive mechanism moves the second array between a third position to eject fluid onto the media and a fourth position at the second service station while the first array ejects fluid onto the media in place of the second array.
    Type: Application
    Filed: October 25, 2003
    Publication date: April 28, 2005
    Inventors: Steve Steinfield, Scott Hock, Myron Bezenek, Victor Escobedo, Kenneth Courian, Mohammad Samii, Juan Vives, Antoni Murcia, David Berardelli
  • Calibrating a first color printing technology based on color differences with a second color printing technology
    Publication number: 20050012930
    Abstract: A method of an embodiment of the invention is disclosed that outputs a first color calibration target using a first color printing technology onto media that has a second color calibration target already output thereon using a second color printing technology. The color differences between the first and the second color calibration targets are determined. The first color printing technology is calibrated, based on the color differences between the first and the second color calibration targets.
    Type: Application
    Filed: July 18, 2003
    Publication date: January 20, 2005
    Inventors: Steve Steinfield, James Kelley