Patents by Inventor Antonius J. Schillemans

Antonius J. Schillemans 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).

  • Cathode ray tube with deflection unit
    Patent number: 6548955
    Abstract: A cathode ray tube (1) comprises an electrically conductive layer (10) shielding against alternating electric fields produced by the deflection unit (5). The electrically conductive layer (10), including an electrically conductive polymer, is provided on at least a part of the funnel portion (6) of the tube (1). The electrically conductive polymer is preferably chosen from the group of polythiophenes. Good results were obtained with a layer comprising poly-3,4-ethylene dioxythiophene. Application of this compound prevents the occurrence of damage to the tube by arcing phenomena and thus reduces the necessity of an insulating film between the tube (1) and the deflection unit (5).
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: April 15, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Johannes M. A. A. Compen, Gerardus V. A. Aben, Antonius J. Schillemans