Patents by Inventor John Prymak

John Prymak 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).

  • Publication number: 20100053849
    Abstract: Porous sintered anode bodies for capacitors formed from valve metals are treated by electrolysis to form a dielectric layer and coated with cathode layers. When standard parallelepiped shapes are used, cathode coverage at the edges and corners is non-uniform and failures occur at those locations. Rectangular prisms, obround prisms and cylindrical prisms are formed with transition surfaces at edges and corners, such as chamfers and curves, to enhance cathode layer uniformity. The transition surface greatly enhances the application of polymer slurries.
    Type: Application
    Filed: November 9, 2009
    Publication date: March 4, 2010
    Inventors: Jeffrey Poltorak, Yongjian Qiu, Christian Guerrero, Lance Paul Thornton, Randy S. Hahn, James C. Bates, JR., John Prymak
  • Patent number: 7658986
    Abstract: Porous sintered anode bodies for capacitors formed from valve metals are treated by electrolysis to form a dielectric layer and coated with cathode layers. When standard parallelpiped shapes are used, cathode coverage at the edges and corners is non-uniform and failures occur at those locations. Rectangular prisms, obround prisms and cylindrical prisms are formed with transition surfaces at edges and corners, such as chamfers and curves, to enhance cathode layer uniformity. The transition surface greatly enhances the application of polymer slurries.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: February 9, 2010
    Assignee: Kemet Electronics Corporation
    Inventors: Jeffrey Poltorak, Yongjian Qiu, Christian Guerrero, Lance Paul Thornton, Randy S. Hahn, James C. Bates, Jr., John Prymak
  • Publication number: 20080299371
    Abstract: Porous sintered anode bodies for capacitors formed from valve metals are treated by electrolysis to form a dielectric layer and coated with cathode layers. When standard parallelpiped shapes are used, cathode coverage at the edges and corners is non-uniform and failures occur at those locations. Rectangular prisms, obround prisms and cylindrical prisms are formed with transition surfaces at edges and corners, such as chamfers and curves, to enhance cathode layer uniformity. The transition surface greatly enhances the application of polymer slurries.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Jeffrey Poltorak, Yongjian Qiu, Christian Guerrero, Lance Paul Thornton, Randy S. Hahn, James C. Bates, JR., John Prymak
  • Patent number: 7292429
    Abstract: A low inductance multi-layer capacitor. The capacitor includes interleaved parallel internal electrode plates with dielectric there between. Each internal electrode plate includes two lead-out tabs and is generally T shaped. A first external electrode terminal is electrically connected to the lead-out tabs of the even internal electrode plates, and a second external electrode terminal is electrically connected to the lead-out tabs of the odd internal electrode plates. The external electrode terminals are on a common first exterior surface and a common opposing second exterior surface of the capacitor.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: November 6, 2007
    Assignee: Kemet Electronics Corporation
    Inventors: Michael S. Randall, John Prymak, Azizuddin Tajuddin
  • Publication number: 20070165360
    Abstract: A low inductance multi-layer capacitor. The capacitor comprises interleaved parallel internal electrode plates with dielectric there between. Each internal electrode plate comprises two lead-out tabs and is generally T shaped. A first external electrode terminal is electrically connected to the lead-out tabs of the even internal electrode plates, and a second external electrode terminal is electrically connected to the lead-out tabs of the odd internal electrode plates. The external electrode terminals are on a common first exterior surface and a common opposing second exterior surface of the capacitor.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 19, 2007
    Inventors: Michael Randall, John Prymak, Azizuddin Tajuddin
  • Publication number: 20070139864
    Abstract: Embedded capacitors comprise a bimetal foil (500) that includes a first copper layer (205) and an aluminum layer (210) on the first copper layer. The aluminum layer has a smooth side adjacent the first copper layer and a high surface area textured side (215) opposite the first copper layer. The bimetal foil further includes an aluminum oxide layer (305) on the high surface area textured side of the aluminum layer, a conductive polymerlayer (420) on the aluminum oxide layer, and a second copper layer (535) overlying the aluminum oxide layer. The bimetal foil may be embedded in a circuit board (700) to form high value embedded capacitors.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Inventors: Gregory Dunn, Remy Chelini, Robert Croswell, Philip Lessner, Michael Prevallet, John Prymak
  • Publication number: 20050231890
    Abstract: An electrical component with a printed circuit board. The printed circuit board has an upper face and a lower face. A microprocessor is mounted to the upper face. A capacitor is mounted to the lower face. The capacitor has a first face parallel to the printed circuit board and a second face opposite to the first face. First plates and second plates are in alternating planar relationship with a dielectric therebetween and arranged in a plane perpendicular to the plane created by the circuit board. Each first plate has a first coupling tab and a power tab on opposing edges wherein the first coupling tab terminates at the first face and the power tab terminates at the second face. Each second plate of the second plates comprises a second coupling tab and a ground tab on opposing edges wherein the second coupling tab terminates at the first face and the ground tab terminates at the second face. The first coupling tab and the second coupling tab are in electrical contact with the microprocessor.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 20, 2005
    Inventor: John Prymak
  • Publication number: 20050230030
    Abstract: An electrical component with a printed circuit board. The printed circuit board has an upper face and a lower face. A microprocessor is mounted to the upper face. A capacitor is mounted to the lower face. The capacitor has a first face parallel to the printed circuit board and a second face opposite to the first face. First plates and second plates are in alternating planar relationship with a dielectric therebetween and arranged in a plane perpendicular to the plane created by the circuit board. Each first plate has a first coupling tab and a power tab on opposing edges wherein the first coupling tab terminates at the first face and the power tab terminates at the second face. Each second plate of the second plates comprises a second coupling tab and a ground tab on opposing edges wherein the second coupling tab terminates at the first face and the ground tab terminates at the second face. The first coupling tab and the second coupling tab are in electrical contact with the microprocessor.
    Type: Application
    Filed: January 12, 2005
    Publication date: October 20, 2005
    Inventor: John Prymak