Patents by Inventor Mikolaas C. de Jaeger

Mikolaas C. 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).

  • Patent number: 5254421
    Abstract: Electrophotographic method of obtaining lithographic printing plates comprising the following steps: (i) uniformly electrostatically charging a photoconductor element, (ii) image-wise discharging said photoconductor element, (iii) developing the resulting electrostatic charge pattern with dry toner particles of which more than 90% by volume have an equivalent particle size diameter less than 10 microns and more than 50% by volume have an equivalent particle size diameter less than 7 microns, (iv) electrostatically transferring the developed image to a toner receiving plate, said toner receiving plate comprising a plastic film support that is thermostable to a temperature of at least 140.degree. C. and a crosslinked hydrophilic layer thereon, said layer containing infrared absorbing substances in such an amount that the reflection density of said layer in the visible spectrum is between 0.4 and 1.4, and (v) fixing the transferred toner to said toner receiving plate by infrared radiation fusing.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: October 19, 1993
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Paul J. Coppens, Serge M. Tavernier, Robert F. Janssens, Paul Marksch, Marc P. Stevens, Mikolaas C. de Jaeger