Patents Assigned to ZINK HOLDINGS, LLC
  • Ordering of color-forming layers in a direct thermal printing medium
    Patent number: 11548308
    Abstract: The present invention relates generally to a printing system, and more specifically to an ordering of color-forming layers in a direct thermal printing medium. The present invention provides a direct thermal print medium with an ordering of the color layers that improves the perceived image sharpness and color uniformity of prints.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: January 10, 2023
    Assignee: ZINK HOLDINGS, LLC
    Inventors: Brian D. Busch, Chien Liu, Suhail S. Saquib, Stephen J. Telfer, William T. Vetterling
  • Expanding a color gamut of a direct thermal printer
    Patent number: 11027559
    Abstract: A method and apparatus for expanding a color gamut of a direct thermal printer is described. The method includes, in a three-color direct thermal printer having at least a print head, the print head including print head elements, dynamically adjusting a duty cycle of at least one of the colors depending on the color to be printed in each pixel of an image.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: June 8, 2021
    Assignee: ZINK HOLDINGS, LLC
    Inventors: Brian D. Busch, James Peter Zelten