Patents by Inventor Romain Bollen

Romain Bollen 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: 5549996
    Abstract: A method for representing radiological images on a recording medium comprising an image recording layer and an opaque reflecting support is provided comprising the steps of:(i) recording said image directly in an digital form or recording said image as an analog image and transforming said analog image into a digital image,(ii) determining a raw image histogram of said digital image(iii) determining from said histogram the width of said diagnostically useful window(iv) dividing said useful window into several smaller windows, the width of said smaller windows being adapted to the dynamic range of said recording medium(v) feeding digital image data of each of said smaller windows to an imager(vi) printing the information content of each of said smaller windows onto said image recording medium.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: August 27, 1996
    Assignee: AGFA-Gevaert, N.V.
    Inventor: Romain Bollen
  • Patent number: 5397687
    Abstract: The preparation of x-ray materials, especially suitable for non-destructive testing applications, is described. The emulsion layers of said material are comprising silver halide emulsion grains containing at least 75 mole % of silver chloride and less than 25 mole % of silver bromide and are characterized by a ratio between the amount of gelatin and the amount of silver halide, being expressed as the equivalent amount of silver nitrate, of less than 0.6. Hardening of said material is performed in such a way that the amount of demineralized water of 25.degree. C. absorbed in 3 minutes is less than 2.5 g per gram of gelatin present in said material. A rapid processing system is available with a total processing time of less than 3 minutes with a developer and fixer being substantially free from hardening agents and the fixer being substantially free from ammonium ions.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: March 14, 1995
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Peter Willems, Freddy Henderickx, Gino De Rycke, Romain Bollen