Patents by Inventor Jeffrey H. Barr

Jeffrey H. Barr 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: 6863361
    Abstract: Described is a method which corrects for malfunctioning or inoperable ink ejection elements in a one-pass printmode. The method comprises obtaining the standard printmask; identifying the ink ejection elements which are malfunctioning; ascertaining ink ejection elements adjacent to the ejection elements which are malfunctioning; selecting particular adjacent ink ejection elements from the adjacent ink ejection elements; and modifying the standard printmask by adjusting the amount of ink deposited by the selected adjacent ink ejection elements to create a modified printmask.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: March 8, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeffrey H. Barr, Jennifer Korngiebel, Tod S. Heiles, Steven L. Webb, Jeffrey D Rutland
  • Publication number: 20040223014
    Abstract: Described is a method which corrects for malfunctioning or inoperable ink ejection elements in a one-pass printmode. The method comprises obtaining the standard printmask; identifying the ink ejection elements which are malfunctioning; ascertaining ink ejection elements adjacent to the ejection elements which are malfunctioning; selecting particular adjacent ink ejection elements from the adjacent ink ejection elements; and modifying the standard printmask by adjusting the amount of ink deposited by the selected adjacent ink ejection elements to create a modified printmask.
    Type: Application
    Filed: October 30, 2001
    Publication date: November 11, 2004
    Inventors: Jeffrey H. Barr, Jennifer Korngiebel, Tod S. Heiles, Steven L. Webb, Jeffrey D. Rutland
  • Patent number: 6722751
    Abstract: A method of correcting for malfunctioning ink ejection elements in a printing system using a single pass over a recording medium which includes obtaining a standard printmask, identifying ink ejection elements which are malfunctioning, ascertaining an original color measurement value for each pixel which will be printed with the malfunctioning ink ejection elements, determining a replacement color measurement value closest in value to the original color measurement value which does not use the malfunctioning ink ejection elements for each pixel which will be printed with the malfunctioning ink ejection elements and modifying the standard printmask by adjusting the number and color of ink drops deposited based on the replacement color measurement value for each pixel which will be printed with the malfunctioning ink ejection elements to create a modified printmask.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: April 20, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeffrey H. Barr, Jennifer Korngiebel, Tod S. Heiles, Steven L Webb, Jeffrey D Rutland
  • Patent number: 6682589
    Abstract: A specific dye set for formulating yellow, cyan, magenta, and black inks comprises Direct Yellow 132, at least one other yellow dye, Direct Blue 199, a magenta dye comprising a dye having the structure and, optionally, Pacified Reactive Black 31, respectively. The dye set provides excellent ink-jet prints having excellent lightfastness when exposed to office light, excellent imaging onto glossy inkjet media, and large color gamut which substantially encompasses the color space for a silver halide reference print. The aqueous inks each comprise from about 0.1 to about 5 wt % of at least one dye with the black ink comprising from about 0.5 to about 5 wt % of at least one colorant; from about 5 to about 20 wt % of at least one organic solvent; 0 to about 1.5 wt % of at least one component independently selected from the group consisting of surfactants, buffers, biocides, and metal chelators; and the balance water.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: January 27, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter C. Morris, Stephen W. Bauer, Shirley Lee, Keshava A. Prasad, Jeffrey H. Barr
  • Publication number: 20030142162
    Abstract: A method of correcting for malfunctioning ink ejection elements in a printing system using a single pass over a recording medium which includes obtaining a standard printmask, identifying ink ejection elements which are malfunctioning, ascertaining an original color measurement value for each pixel which will be printed with the malfunctioning ink ejection elements, determining a replacement color measurement value closest in value to the original color measurement value which does not use the malfunctioning ink ejection elements for each pixel which will be printed with the malfunctioning ink ejection elements and modifying the standard printmask by adjusting the number and color of ink drops deposited based on the replacement color measurement value for each pixel which will be printed with the malfunctioning ink ejection elements to create a modified printmask.
    Type: Application
    Filed: January 30, 2002
    Publication date: July 31, 2003
    Inventors: Jeffrey H. Barr, Jennifer Korngiebel, Tod S. Heiles, Steven L. Webb, Jeffrey D. Rutland
  • Publication number: 20030101904
    Abstract: A specific dye set for formulating yellow, cyan, magenta, and black inks comprises Direct Yellow 132, at least one other yellow dye, Direct Blue 199, a magenta dye comprising a dye having the structure 1
    Type: Application
    Filed: October 30, 2001
    Publication date: June 5, 2003
    Inventors: Peter C. Morris, Stephen W. Bauer, Shirley Lee, Keshava A. Prasad, Jeffrey H. Barr
  • Patent number: 5519421
    Abstract: In an inkjet print cartridge having a polymer nozzle member with windows formed therein for facilitating bonding of conductors to electrodes on a substrate, an adhesive is dispensed through the windows to encapsulate the exposed conductors bonded to the electrodes. The adhesive typically overflows outside the windows. To prevent the adhesive from flowing uncontrolled towards the nozzles formed in the nozzle member, a disruption or surface discontinuity is formed in the nozzle member surface between the windows and the nozzles. This disruption or surface discontinuity may be formed by either scratching, etching, cutting, pressing a blade into, or laser ablating the tape surface, or forming a raised wall on the tape surface, such that the flow of adhesive is inhibited because of mechanical and surface forces.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: May 21, 1996
    Assignee: Hewlett-Packard Company
    Inventors: Jeffrey H. Barr, Hanno Ix, Michael P. Caren