Patents by Inventor Nikolaas De Jaeger

Nikolaas De Jaeger 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).

  • Method for preparing an aluminium foil for use as a support in lithographic printing plates
    Patent number: 5633115
    Abstract: The present invention provides a method for preparing an image receiving element comprising an aluminum foil as support comprising the steps of roughening and anodizing said aluminum foil and applying an image receiving layer containing physical development nuclei on said aluminum foil characterized in that said roughened and anodized aluminum foil is posttreated with an aqueous solution containing one or more organic compounds having at least one cationic group.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: May 27, 1997
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Nikolaas de Jaeger, Walter Verdyck, Augustin Meisters
  • Method for the production of a radiographic screen
    Patent number: 5589048
    Abstract: A method for the production of a radiographic screen comprising the following steps:1) dispersing phosphor particles in an organic liquid in the presence of a charge controlling agent that charges said phosphor particles with a positive or negative net charge,2) arranging said dispersion between a pair of electrodes, wherein one of said electrodes is or carries a conductive support of said radiographic screen,3) applying and maintaining between said electrodes a sufficiently high direct current voltage to deposit charged phosphor particles onto said conductive support, and4) separating said support carrying electrophoretically deposited phosphor particles from said organic liquid,wherein the dispersing of said phosphor particles proceeds by means of an organic surface active compound acting as dispersing agent for said phosphor particles, and said phosphor particles are electrostatically charged through adsorption thereon of ionic components of said organic surface active compound and/or through adsorption of
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: December 31, 1996
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Nikolaas De Jaeger, Guy Damen, Gerhard Winter, Jan Van Havenbergh
  • Method for the production of a radiographic screen
    Patent number: 5296117
    Abstract: A method for the production of a radiographic screen comprising the following steps:1) dispersing phosphor particles in an organic liquid in the presence of a charge controlling agent that charges said phosphor particles with a positive or negative net charge,2) arranging said dispersion between a pair of electrodes, wherein one of said electrodes is or carries a conductive support of said radiographic screen,3) applying and maintaining between said electrodes a sufficiently high direct current voltage to deposit charged phosphor particles onto said conductive support, and4) separating said support carrying electrophoretically deposited phosphor particles from said organic liquid,wherein the dispersing of said phosphor particles proceeds by means of an organic surface active compound acting as dispersing agent for said phosphor particles, and said phosphor particles are electrostatically charged through adsorption thereon of ionic components of said organic surface active compound and/or through adsorption of
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: March 22, 1994
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Nikolaas De Jaeger, Guy Damen, Gerhard Winter, Jan Van Havenbergh