Patents by Inventor Bart van der Eijk

Bart van der Eijk 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).

  • Modular X-ray image intensifier tube
    Patent number: 4874987
    Abstract: An X-ray image intensifier tube is constructed as a modulator system using modules which are uniform for as may different types of tube as possible. Whenever feasible, the modules are detachably combined so as to form one unit.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: October 17, 1989
    Assignee: U.S. Philips Corporation
    Inventors: Bart van der Eijk, Johannes N. van de Wiel, Engelbertus Rongen, Christiaan J. G. H. Wulms
  • X-Ray detector
    Patent number: 4418452
    Abstract: A method of manufacturing light detection units which comprise a photocathode disposed on an entrance window, an electron detector including a semiconductor junction, and means which transmit the electrons from the photocathode to the electron detector including a perforated aperture plate disposed between the entrance window and the electron detector. The photocathode is formed on a surface of the entrance window after assembling the entrance window and electron detector to the means which transmit the electrons. Perforations in the aperture plate are covered with spherical shields while the photocathode is formed on the surface of the entrance window. The shields are then removed.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: December 6, 1983
    Assignee: U.S. Philips Corporation
    Inventors: Walter H. Kuhl, Johannes A. J. Van Leunen, Bart van der Eijk, Antonius J. J. M. van der Bolt, Arthur M. E. Hoeberechts