Patents by Inventor Elisabeth W.J. Romer

Elisabeth W.J. Romer 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).

  • COG dieletric composition for use with nickel electrodes
    Patent number: 8114801
    Abstract: Multilayer ceramic chip capacitors which satisfy COG requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel and nickel alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise a strontium zirconate matrix doped with other metal oxides such as TiO2, MgO, B2O3, CaO, Al2O3, SiO2, and SrO in various combinations.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: February 14, 2012
    Assignee: Ferro Corporation
    Inventors: Walter J. Symes, Jr., Mohammed H. Megherhi, Elisabeth W. J. Römer, Mike S. H. Chu, Willibrordus J. L. M. J. Coppens
  • COG Dieletric Composition For Use With Nickel Electrodes
    Publication number: 20110090619
    Abstract: Multilayer ceramic chip capacitors which satisfy COG requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel and nickel alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise a strontium zirconate matrix doped with other metal oxides such as TiO2, MgO, B2O3, CaO, Al2O3, SiO2, and SrO in various combinations.
    Type: Application
    Filed: November 15, 2010
    Publication date: April 21, 2011
    Applicant: FERRO CORPORATION
    Inventors: Walter J. Symes, JR., Mohammed H. Megherhi, Elisabeth W. J. Römer, Mike S. H. Chu, Willibrordus J. L. M. J. Coppens
  • COG dielectric composition for use with nickel electrodes
    Patent number: 7858548
    Abstract: Multilayer ceramic chip capacitors which satisfy COG requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel and nickel alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise a strontium zirconate matrix doped with other metal oxides such as TiO2, MgO, B2O3, CaO, Al2O3, SiO2, and SrO in various combinations.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: December 28, 2010
    Assignee: Ferro Corporation
    Inventors: Walter J. Symes, Jr., Mohammed H. Megherhi, Elisabeth W. J. Römer, Mike S. H. Chu, Willibrordus J. L. M. J. Coppens
  • Cog Dielectric Composition For Use With Nickel Electrodes
    Publication number: 20080063881
    Abstract: Multilayer ceramic chip capacitors which satisfy COG requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel and nickel alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise a strontium zirconate matrix doped with other metal oxides such as TiO2, MgO, B2O3, CaO, Al2O3, SiO2, and SrO in various combinations.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 13, 2008
    Inventors: Walter J. Symes, Mohammed H. Megherhi, Elisabeth W.J. Romer, Mike S.H. Chu, Wilibrordus J.L.M.J Coppens