Patents by Inventor Fawwaz N. Habbal

Fawwaz N. Habbal 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).

  • Printing apparatus
    Patent number: 5355303
    Abstract: Printing apparatus particularly suited to provide a hardcopy of an image produced by medical imaging equipment or the like. The apparatus produces an area modulation hardcopy having a large number of gray levels per area modulation cell (pixel) by generating in substantially adfacent columns units of subpixels called pels. The pels have an initial size that is increased by the addition of subpels referred to as slices.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: October 11, 1994
    Assignee: Polaroid Corporation
    Inventors: Guillermo S. Ferla, Fawwaz N. Habbal
  • Printing method
    Patent number: 5170261
    Abstract: Printing apparatus and method particularly suited to provide a hardcopy of an image which is produced by medical imaging equipment or the like. The method produces an area modulation hardcopy having a large number of gray levels per area modulation cell (pixel) and a strong density sensitivity preferably by pulse width modulating two different sized printing radiation beams.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: December 8, 1992
    Assignee: Polaroid Corporation
    Inventors: Ellen B. Cargill, Fawwaz N. Habbal, Andrew K. Juenger