Patents by Inventor Keith R. Brenneman

Keith R. Brenneman 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: 9236191
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of coverage enhancing catalyst followed by application of a conducting polymer layer. Coverage enhancing catalyst is removed after coating and curing.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: January 12, 2016
    Assignee: Kemet Electroncis Corporation
    Inventors: Antony P. Chacko, Yang Jin, Randolph S. Hahn, Yongjian Qiu, Philip M. Lessner, Keith R. Brenneman
  • Patent number: 9053866
    Abstract: An improved solid electrolytic capacitor and method of forming a solid electrolytic capacitor is described. The method includes forming an anode comprising a valve metal or conductive oxide of a valve metal wherein an anode lead extension protrudes from the anode. A dielectric is formed on the anode and a cathode layer is formed on the dielectric. The anode, dielectric, and cathode layer are encased in a non-conducting material and the anode lead extension is exposed outside of the encasement at a side surface. A conductive metal layer is adhered to the anode lead extension which allows termination preferably by electrically connecting a preformed solid metal terminal, most preferably an L shaped terminal, to the conductive metal layer at the side surface.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: June 9, 2015
    Assignee: Kemet Electronics Corporation
    Inventors: Brandon Summey, Jeffrey Poltorak, Philip M. Lessner, Yongjian Qiu, Randolph S. Hahn, David Jacobs, Keith R. Brenneman, Albert K. Harrington, Chris Stolarski
  • Publication number: 20150135496
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of coverage enhancing catalyst followed by application of a conducting polymer layer. Coverage enhancing catalyst is removed after coating and curing.
    Type: Application
    Filed: September 19, 2014
    Publication date: May 21, 2015
    Inventors: Antony P. Chacko, Yang Jin, Randolph S. Hahn, Yongjian Qiu, Philip M. Lessner, Keith R. Brenneman
  • Patent number: 9030807
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of coverage enhancing catalyst followed by application of a conducting polymer layer wherein the conductive polymeric cathode comprises the coverage enhancement catalyst wherein the conductive polymeric layer has improved coverage of the corners and edges. Coverage enhancing catalyst is removed after coating and curing.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: May 12, 2015
    Assignee: Kemet Electronics Corporation
    Inventors: Antony P. Chacko, Qingping Chen, Yang Jin, Philip M. Lessner, Randolph S. Hahn, Yongjian Qiu, Keith R. Brenneman
  • Publication number: 20140301022
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of a non-ionic polyol prior to application of a conducting polymer layer.
    Type: Application
    Filed: May 29, 2014
    Publication date: October 9, 2014
    Inventors: Qingping Chen, Hong Zhang, Antony P. Chacko, Philip M. Lessner, Randolph S. Hahn, Yongjian Qiu, Keith R. Brenneman
  • Patent number: 8771381
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of a non-ionic polyol prior to application of a conducting polymer layer.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: July 8, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: Qingping Chen, Hong Zhang, Antony P. Chacko, Philip M. Lessner, Randolph S. Hahn, Yongjian Qiu, Keith R. Brenneman
  • Publication number: 20130250486
    Abstract: An improved solid electrolytic capacitor and method of forming a solid electrolytic capacitor is described. The method includes forming an anode comprising a valve metal or conductive oxide of a valve metal wherein an anode lead extension protrudes from the anode. A dielectric is formed on the anode and a cathode layer is formed on the dielectric. The anode, dielectric, and cathode layer are encased in a non-conducting material and the anode lead extension is exposed outside of the encasement at a side surface. A conductive metal layer is adhered to the anode lead extension which allows termination preferably by electrically connecting a preformed solid metal terminal, most preferably an L shaped terminal, to the conductive metal layer at the side surface.
    Type: Application
    Filed: May 15, 2013
    Publication date: September 26, 2013
    Applicant: Kemet Electronics Corporation
    Inventors: Brandon Summey, Jeffrey Poltorak, Philip M. Lessner, Yongjian Qiu, Randolph S. Hahn, David Jacobs, Keith R. Brenneman, Albert K. Harrington, Chris Stolarski
  • Patent number: 8520366
    Abstract: An improved solid electrolytic capacitor and method of forming a solid electrolytic capacitor is described. The method includes forming an anode comprising a valve metal or conductive oxide of a valve metal wherein an anode lead extension protrudes from the anode. A dielectric is formed on the anode and a cathode layer is formed on the dielectric. The anode, dielectric, and cathode layer are encased in a non-conducting material and the anode lead extension is exposed outside of the encasement at a side surface. A conductive metal layer is adhered to the anode lead extension which allows termination preferably by electrically connecting a preformed solid metal terminal, most preferably an L shaped terminal, to the conductive metal layer at the side surface.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: August 27, 2013
    Assignee: Kemet Electronics Corporation
    Inventors: Brandon Summey, Jeffrey Poltorak, Philip M. Lessner, Yongjian Qiu, Randolph S. Hahn, David Jacobs, Keith R. Brenneman, Albert Harrington, Chris Stolarski
  • Publication number: 20120206859
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of coverage enhancing catalyst followed by application of a conducting polymer layer. Coverage enhancing catalyst is removed after coating and curing.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 16, 2012
    Inventors: Antony P. Chacko, Qingping Chen, Jin Yang, Phillip M. Lessner, Randolph S. Hahn, Yongjian Qiu, Keith R. Brenneman
  • Publication number: 20120206860
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of a non-ionic polyol prior to application of a conducting polymer layer.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 16, 2012
    Inventors: Qingping Chen, Hong Zhang, Antony P. Chacko, Phillip M. Lessner, Randolph S. Hahn, Yongjian Qiu, Keith R. Brenneman
  • Patent number: 7990683
    Abstract: A method for forming a capacitor including forming an anode from a valve metal; forming an oxide on the anode to form an anodized anode; dipping the anodized anode into a slurry of conductive polymer; drying the intrinsically conductive polymer; and providing external terminations in electrical contact with the anode and the conductive polymer.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: August 2, 2011
    Assignee: Kemet Electronics Corporation
    Inventors: Yongjian Qiu, Randy S. Hahn, Keith R. Brenneman
  • Publication number: 20110149477
    Abstract: An improved solid electrolytic capacitor and method of forming a solid electrolytic capacitor is described. The method includes forming an anode comprising a valve metal or conductive oxide of a valve metal wherein an anode lead extension protrudes from the anode. A dielectric is formed on the anode and a cathode layer is formed on the dielectric. The anode, dielectric, and cathode layer are encased in a non-conducting material and the anode lead extension is exposed outside of the encasement at a side surface. A conductive metal layer is adhered to the anode lead extension which allows termination preferably by electrically connecting a preformed solid metal terminal, most preferably an L shaped terminal, to the conductive metal layer at the side surface.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 23, 2011
    Inventors: Brandon Summey, Jeffrey Poltorak, Philip M. Lessner, Yongjian Qiu, Randolph S. Hahn, David Jacobs, Keith R. Brenneman, Albert Harrington, Chris Stolarski
  • Patent number: 7833292
    Abstract: An improved method for forming a capacitor. The method includes providing a carrier with a channel therein, providing a metal foil with a valve metal with a first dielectric on a first face of the metal foil, securing the metal foil into the channel with the first dielectric away from a channel floor, inserting an insulative material between the metal foil and each side wall of the channel, forming a cathode layer on the first dielectric between the insulative material, forming a conductive layer on the cathode layer and in electrical contact with the carrier, lap cutting the carrier parallel to the metal foil such that the valve metal is exposed, and dice cutting to form singulated capacitors.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: November 16, 2010
    Assignee: KEMET Electronics Corporation
    Inventors: Keith R. Brenneman, Chris Wayne, Chris Stolarski, John T Kinard, Alethia Melody, Gregory J. Dunn, Remy J. Chelini, Robert T. Croswell
  • Publication number: 20100246096
    Abstract: A process for forming a capacitor. The process includes providing an anode; providing a dielectric on the anode; exposing the anode to a polymer precursor solution comprising monomer, conjugated oligomer and optionally solvent and polymerizing the polymer precursor. The ratio between monomer and conjugated oligomer ranges from 99.9/0.1 to 75/25 by weight. The solvent content in the polymer precursor solution is from 0 to 99% by weight.
    Type: Application
    Filed: May 19, 2010
    Publication date: September 30, 2010
    Inventors: Qingping Chen, Keith R. Brenneman, Yuhong Ma, Yongjian Qiu, Philip M. Lessner, Randy S. Hahn
  • Publication number: 20100177460
    Abstract: An improved method for forming a capacitor. The method includes: providing a carrier with a channel therein; providing a metal foil with a valve metal with a first dielectric on a first face of the metal foil; securing the metal foil into the channel with the first dielectric away from a channel floor; inserting an insulative material between the metal foil and each side wall of the channel; forming a cathode layer on the first dielectric between the insulative material; forming a conductive layer on the cathode layer and in electrical contact with the carrier; lap cutting the carrier parallel to the metal foil such that the valve metal is exposed; and dice cutting to form singulated capacitors.
    Type: Application
    Filed: March 18, 2010
    Publication date: July 15, 2010
    Inventors: Keith R. Brenneman, Chris Wayne, Chris Stolarski, John T. Kinard, Alethia Melody, Gregory J. Dunn, Remy J. Chelini, Robert T. Croswell
  • Patent number: 7754276
    Abstract: A method for maintaining quality of monomer during a coating process for intrinsically conductive polymer which suppresses unwanted by-products. A neutralization process using a base or anion exchange resin is used batch-wise or continuous.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: July 13, 2010
    Assignee: KEMET Electronics Corporation
    Inventors: Yongjian Qiu, Qingping Chen, Philip M. Lessner, Randy S. Hahn, Cynthia L. Prince, Keith R. Brenneman
  • Patent number: 7563290
    Abstract: A method for forming a capacitor including forming an anode from a valve metal; forming an oxide on the anode to form an anodized anode; dipping the anodized anode into a slurry of conductive polymer; drying the intrinsically conductive polymer; and providing external terminations in electrical contact with the anode and the conductive polymer.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: July 21, 2009
    Assignee: Kemet Electronics Corporation
    Inventors: Yongjian Qiu, Randy S. Hahn, Keith R. Brenneman
  • Publication number: 20080283409
    Abstract: A process for forming a capacitor. The process includes providing an anode; providing a dielectric on the anode; exposing the anode to a polymer precursor solution comprising monomer, conjugated oligomer and optionally solvent and polymerizing the polymer precursor. The ratio between monomer and conjugated oligomer ranges from 99.9/0.1 to 75/25 by weight. The solvent content in the polymer precursor solution is from 0 to 99% by weight.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 20, 2008
    Inventors: Qingping Chen, Keith R. Brenneman, Yuhong Ma, Yongjian Qiu, Philip M. Lessner, Randy S. Hahn
  • Publication number: 20080273291
    Abstract: An improved method for forming a capacitor. The method includes: providing a carrier with a channel therein; providing a metal foil with a valve metal with a first dielectric on a first face of the metal foil; securing the metal foil into the channel with the first dielectric away from a channel floor; inserting an insulative material between the metal foil and each side wall of the channel; forming a cathode layer on the first dielectric between the insulative material; forming a conductive layer on the cathode layer and in electrical contact with the carrier; lap cutting the carrier parallel to the metal foil such that the valve metal is exposed; and dice cutting to form singulated capacitors.
    Type: Application
    Filed: April 7, 2008
    Publication date: November 6, 2008
    Inventors: Keith R. Brenneman, Chris Wayne, Chris Stolarski, John T. Kinard, Alethia Melody, Gregory J. Dunn, Remy J. Chellni, Robert T. Croswell
  • Publication number: 20080250620
    Abstract: A method for maintaining quality of monomer during a coating process for intrinsically conductive polymer which suppresses unwanted by-products. A neutralization process using a base or anion exchange resin is used batch-wise or continuous.
    Type: Application
    Filed: April 16, 2007
    Publication date: October 16, 2008
    Inventors: Yongjian Qiu, Qingping Chen, Philip M. Lessner, Randy S. Hahn, Cynthia L. Prince, Keith R. Brenneman