Patents by Inventor Luc J. Heremans

Luc J. Heremans 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: 5449599
    Abstract: A silver halide light-sensitive photographic material for applications in the field of mammography is disclosed which has an improved diagnostic value by an enhanced sharpness. The silver halide crystals to be used in the said material show a fog level, a toe contrast and an overall contrast that is, like the image quality, substantially uneffected by the processing conditions. The coating amount of silver halide crystals in the emulsion layer can be reduced to such an amount that an archivability of from 10 to 20 years can be assured in normal storage conditions. The X-ray material is suitable for rapid processing, without loss in sensitivity, within processing cycles of 45 or 38 seconds, wherein hardener-free processing solutions can be used.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: September 12, 1995
    Assignee: Agfa-Gevaert, N.V.
    Inventor: Luc J. Heremans
  • Patent number: 5447826
    Abstract: A photographic light-sensitive silver halide material is disclosed comprising a support and one or more hydrophylic colloid layers including at least one light-sensitive silver halide emulsion layer characterized in that in said emulsion layer is a gold and sulphur sensitized silver bromide or silver bromoiodide emulsion having cubic crystal habit and in that said emulsion and/or a hydrophylic colloid layer in water-permeable relationship therewith comprises a 3-pyrazolidinone compound.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: September 5, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Luc J. Heremans, Rudi A. Goedeweeck