Patents by Inventor Frederik G. A. Persoon

Frederik G. A. Persoon 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 manufacturing multilayer ceramic capcitors
    Patent number: 4991055
    Abstract: A method and a device for manufacturing multilayer ceramic capacitors, in which a plate of ceramic material composed of several layers is subdivided in the green non-sintered state into separate capacitor elements. For this purpose, by means of notching members, notches of a given depth are provided simultaneously on both sides of the plate in such a manner that spontaneous ruptures are obtained through the remaining thickness of the plate. Due to this method, the contamination of the exposed electrode layers and delamination are avoided. By the use of a frame with resilient walls, the already separated capacitor elements are held together until the notching process has been carried out completely.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: February 5, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Antonius G. Marneffe, Frederik G. A. Persoon, Gerard J. Scholten
  • Method for manufacturing multilayer ceramic capacitors
    Patent number: 4849855
    Abstract: A method and a device for manufacturing multilayer ceramic capacitors, in which a plate of ceramic material composed of several layers is subdivided in the green non-sintered state into separate capacitor elements. For this purpose, by means of notching members, notches of a given depth are provided simultaneously on both sides of the plate in such a manner that spontaneous ruptures are obtained through the remaining thickness of the plate. Due to this method, the contamination of the exposed electrode layers and delamination are avoided. By the use of a frame with resilient walls, the already separated capacitor elements are held together until the notching process has been carried out completely.
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: July 18, 1989
    Assignee: U.S. Philips Corporation
    Inventors: Antonius C. Marneffe, Frederik G. A. Persoon, Gerard J. Scholten
  • Method for manufacturing multilayer ceramic capacitors
    Patent number: 4562628
    Abstract: A method and a device for manufacturing multilayer ceramic capacitors, in which a plate of ceramic material composed of several layers is subdivided in the green non-sintered state into separate capacitor elements. For this purpose, by means of notching members, notches of a given depth are provided simultaneously on both sides of the plate in such a manner that spontaneous ruptures are obtained through the remaining thickness of the plate. Due to this method, the contamination of the exposed electrode layers and delamination are avoided. By the use of a frame with resilient walls, the already separated capacitor elements are held together until the notching process has been carried out completely.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: January 7, 1986
    Assignee: U.S. Philips Corporation
    Inventors: Antonius C. Marneffe, Frederik G. A. Persoon, Gerard J. Scholten