Patents by Inventor Andreas Webhofer

Andreas Webhofer 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).

  • Electrical PTC thermistor component, and method for the production thereof
    Patent number: 8154379
    Abstract: An electrical PTC thermistor component includes a base that includes a peripheral surface, first and second faces on different sides of the component, and first and second conductive layers, each of which is on at least one of the first and second faces. The first conductive layer is not on the peripheral surface. The second conductive layer includes a cap that covers, and overlaps edges of, the at least one of the first and second faces.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: April 10, 2012
    Assignee: EPCOS AG
    Inventors: Udo Theissl, Andreas Webhofer
  • Electrical PTC Thermistor Component, and Method for the Production Thereof
    Publication number: 20090167481
    Abstract: An electrical PTC thermistor component includes a base that includes a peripheral surface, first and second faces on different sides of the component, and first and second conductive layers, each of which is on at least one of the first and second faces. The first conductive layer is not on the peripheral surface. The second conductive layer includes a cap that covers, and overlaps edges of, the at least one of the first and second faces.
    Type: Application
    Filed: April 18, 2007
    Publication date: July 2, 2009
    Inventors: Udo Theissl, Andreas Webhofer
  • Reduction-stable ceramic substances
    Patent number: 6613705
    Abstract: Reduction-stable COG ceramic compounds having a high dielectric constant, particularly for multi-layer capacitors or LC filters with Cu electrodes, on the basis of the material system BaO—Nd2O3—Sm2O3—TiO2 in the region of the phase formation of rhombic bronzes with additives of a glass frit from the systems: (A) ZnO—B2O3—SiO2, (B) K2O—Na2O—BaO—Al2O3—ZrO2—ZnO—SiO2—B2O3 or (C) Li2O—BaO—B2O—SiO2, have the general formula BaII6−x(SmyNd1−y)8+2x/3Ti18O54+p wt. % glass frit with 1<x<2, 0.5<y<1.0 and 3<p<10.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: September 2, 2003
    Assignee: Epcos Aktiengesellschaft
    Inventors: Addalbert Feltz, Andreas Webhofer, Klaus-Dieter Aichholzer