Patents by Inventor Markus Nutto

Markus Nutto 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: 5008646
    Abstract: Non-linear voltage-dependent resistor having a ceramic sintered body based on zinc oxide as a resistance material which is doped with at least one alkaline earth metal, rare earth metal and metal of the iron group present as an oxide and is doped with at least one of the metals from the group aluminum, gallium and/or indium and having electrodes provided on oppositely located major surfaces of the sintered body, in which the sintered body is constructed from several layers having at least a layer structure of one layer of resistance material on a carrier layer based on zinc oxide which has a higher electric conductivity as compared with the resistance material, as well as a method of manufacturing same.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: April 16, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Detlev Hennings, Bernd F. W. Hoffmann, Markus Nutto