Patents by Inventor John G. Pepin

John G. Pepin 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).

  • Thermal shock cracking resistant multilayer ceramic capacitor termination compositions
    Patent number: 5363271
    Abstract: A thick film conductor composition suitable for use in forming terminations for titanate-based MLCs comprising finely divided particles of:(a) electrically conductive precious metal and(b) metal oxide-based glass having a Dilatometer softening point of 400-700 C. comprising at least one glass modifier having an ionic field strength higher than the ionic field strength of the titanate cation, both (a) and (b) being dispersed in an organic medium.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: November 8, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John G. Pepin
  • Multilayer ceramic capacitor manufacturing process
    Patent number: 5334411
    Abstract: The invention is directed to an MLC manufacturing process in which the electrode paste is cast or printed onto a rigid substrate. The dried surface of the electrode is rendered smooth to remove surface asperities and the prints are then transferred to the dielectric substrate through a mask which patterns the electrode print on the surface.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: August 2, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John G. Pepin
  • Metal oxide-coated electrically conductive powders and compositions thereof
    Patent number: 5126915
    Abstract: Finely divided particles of electrically conductive metal having a coating thereon a refractory metal oxide which is insoluble in the electrically conductive metal and non-reducing in the present of the electrically conductive metal, (2) the coating being sufficiently thick that the Isoelectric Point of the coated conductive metal particles is at least 1 unit higher than the Isoelectric Point of particles of the refractory metal oxide, (2) the tap density of the coated metal particles is at least 90% as high as the tap density of the uncoated metal particles, and (3) the metal oxide coating constitutes at least 0.05% by weight of the coated particles.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: June 30, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John G. Pepin, Howard W. Jacobson
  • Thick film conductor composition
    Patent number: 4954926
    Abstract: A thick film conductor composition suitable for use for electrodes in multilayer capacitors comprising (a) finely divided particles of electrically conductive metal, metal oxide precursors or alloys of the conductive metals, or mixtures thereof, dispersed in (b) an organic medium comprising(1) an organometallic compound, the metal or metal oxide moiety of which is insoluble in the electrically conductive metal and/or the oxide(s) of the metal moiety are non-reducing in the presence of the electrically conductive metal, the organometallic compound being dissolved in;(2) a solution of polymeric binder and volatilizable solvent.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: September 4, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John G. Pepin