Patents by Inventor Donald B. Hutcheson

Donald B. Hutcheson 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: 5528377
    Abstract: A process for reproducing an original color image on a printing device includes separating each pixel of the original image into a plurality of color components to obtain an image density value for each color component at each pixel. A number of printing elements are selected for each color component, the number of printing elements being more than one for at least one of the color components. The printing density values for each color component having more than one printing element are separated into at least two pixel groups, the first pixel group containing printing density values less than or equal to an assigned maximum printing density value achievable with a single printing element for that color component, and the second pixel group containing printing density values greater than said assigned maximum printing density value for that color component.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: June 18, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donald B. Hutcheson