Patents by Inventor Philip M. Lessner

Philip M. Lessner 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: 11396594
    Abstract: An improved formulation of conductive polymer is provided. The formulation comprises a conductive polymer and a polyanion wherein the polyanion is a copolymer comprising groups A, B and C represented the ratio of Formula A: AxByCz??Formula A wherein: A is polystyrenesulfonic acid or salt of polystyrenesulfonate; B and C separately represent polymerized units substituted by a group selected from: —C(O)OR6 wherein R6 is selected from the group consisting of: —(CHR17)b—R18. All other groups are defined. The conductive polymer has an average particle size of at least 1 nm to no more than 10 microns.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: July 26, 2022
    Assignee: KEMET Electronics Corporation
    Inventors: Ajaykumar Bunha, Antony P. Chacko, Yaru Shi, Qingping Chen, Philip M. Lessner
  • Patent number: 11398357
    Abstract: An improved capacitor is provided. The capacitor comprises a working element wherein the working element comprises an anode comprising a first dielectric on the anode, a cathode and a conductive separator between the first dielectric and cathode. The conductive separator comprises a separator and a first conductive polymer wherein the first conductive polymer at least partially encapsulates the separator. A second conductive polymer at least partially encapsulates the first conductive polymer and wherein the first conductive polymer has a higher conductivity than the second conductive polymer. An anode lead is in electrical contact with the anode and a cathode lead is in electrical contact with the cathode.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: July 26, 2022
    Assignee: KEMET Electronics Corporation
    Inventors: Victor Andoralov, Miguel Evaristo, Rui A. Monteiro, Philip M. Lessner
  • Patent number: 11393637
    Abstract: Provided is an improved capacitor and a method of making an improved capacitor. The capacitor comprises a hermetically sealed casing with a capacitive element in the hermetically sealed casing. The capacitive element comprises a cathode with an ionic liquid in the cathode.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: July 19, 2022
    Assignee: KEMET Electronics Corporation
    Inventors: Antony P. Chacko, Elisabeth Crittendon Key, Philip M. Lessner
  • Patent number: 11177076
    Abstract: A capacitor comprising an anode foil; and a conductive polymer layer on the anode foil. The conductive polymer layer comprises first particles comprising conductive polymer and polyanion and second particles comprising the conductive polymer and the polyanion wherein the first particles have an average particle diameter of at least 1 micron to no more than 10 microns. The second particles have an average particle diameter of at least 1 nm to no more than 600 nm.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: November 16, 2021
    Assignee: KEMET Electronics Corporation
    Inventors: Ajaykumar Bunha, Antony P. Chacko, Qingping Chen, Yaru Shi, Philip M. Lessner
  • Publication number: 20210327646
    Abstract: Provided is a heat dissipating capacitor comprising internal electrodes of opposing polarity forming a capacitive couple between external terminations. A dielectric is between the internal electrodes. The heat dissipating capacitor comprises at least one thermal dissipation layer and at least one thermal conductive termination wherein the thermal dissipation layer is in thermally conductive contact with the thermal conductive termination.
    Type: Application
    Filed: April 19, 2021
    Publication date: October 21, 2021
    Inventors: Mark R. Laps, John Bultitude, Philip M. Lessner, Lonnie G. Jones, Allen Templeton, Nathan A. Reed
  • Patent number: 11152161
    Abstract: An improved capacitor is provided. The capacitor comprises a working element wherein the working element comprises an anode comprising a first dielectric on the anode, a cathode and a conductive separator between the first dielectric and cathode. The conductive separator comprises a separator and a first conductive polymer wherein the first conductive polymer at least partially encapsulates the separator. A second conductive polymer at least partially encapsulates the first conductive polymer and wherein the first conductive polymer has a higher conductivity than the second conductive polymer. An anode lead is in electrical contact with the anode and a cathode lead is in electrical contact with the cathode.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: October 19, 2021
    Assignee: KEMET Electronics Corporation
    Inventors: Victor Andoralov, Miguel Evaristo, Rui A. Monteiro, Philip M. Lessner
  • Patent number: 11101077
    Abstract: A dispersion comprising first particles comprising conductive polymer and polyanion and second particles comprising the conductive polymer and said polyanion wherein the first particles have an average particle diameter of at least 1 micron to no more than 10 microns and the second particles have an average particle diameter of at least 1 nm to no more than 600 nm.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: August 24, 2021
    Assignee: KEMET Electronics Corporation
    Inventors: Ajaykumar Bunha, Antony P. Chacko, Yaru Shi, Qingping Chen, Philip M. Lessner
  • Publication number: 20210198469
    Abstract: An improved slurry of conductive polymer is provided. The slurry comprises a conductive polymer and a polyanion wherein the polyanion is a copolymer comprising groups A, B and C represented the ratio of Formula A: AxByCz?? Formula A wherein: A is polystyrenesulfonic acid or salt of polystyrenesulfonate; B and C separately represent polymerized units substituted by a group selected from: —C(O)OR6 wherein R6 is selected from the group consisting of: —(CHR17)b—R18. All other groups are defined. The conductive polymer has an average particle size of at least 1 nm to no more than 10 microns.
    Type: Application
    Filed: February 4, 2021
    Publication date: July 1, 2021
    Inventors: Ajaykumar Bunha, Antony P. Chacko, Yaru Shi, Qingping Chen, Philip M. Lessner
  • Publication number: 20210193400
    Abstract: An improved capacitor is provided. The capacitor comprises a working element wherein the working element comprises an anode comprising a first dielectric on the anode, a cathode and a conductive separator between the first dielectric and cathode. The conductive separator comprises a separator and a first conductive polymer wherein the first conductive polymer at least partially encapsulates the separator. A second conductive polymer at least partially encapsulates the first conductive polymer and wherein the first conductive polymer has a higher conductivity than the second conductive polymer. An anode lead is in electrical contact with the anode and a cathode lead is in electrical contact with the cathode.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 24, 2021
    Applicant: KEMET Electronics Corporation
    Inventors: Victor Andoralov, Miguel Evaristo, Rui A. Monteiro, Philip M. Lessner
  • Patent number: 11037871
    Abstract: An improved electronic assembly is provided. The electronic assembly comprises a ceramic interposer comprising multiple layers. The active layers of the multiple layers form an embedded capacitor comprising parallel electrodes with a dielectric between adjacent electrodes wherein adjacent electrodes have opposite polarity. A wide band gap device is also on the multilayered ceramic interposer.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: June 15, 2021
    Assignee: KEMET Electronics Corporation
    Inventors: Allen Templeton, John Bultitude, Lonnie G. Jones, Philip M. Lessner
  • Patent number: 10950688
    Abstract: Provided herein is a module for packaging semiconductors comprising: at least one PDC comprising parallel internal electrodes of alternating polarity with a paraelectric dielectric between adjacent internal electrodes wherein the paraelectric dielectric has a permittivity above 10 to no more than 300; and wherein the PDC forms a capacitor couple with at least one semiconductor.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: March 16, 2021
    Assignee: KEMET Electronics Corporation
    Inventors: John Bultitude, Lonnie G. Jones, Allen Templeton, Philip M. Lessner
  • Patent number: 10947376
    Abstract: A capacitor and a method of making a capacitor, is provided with improved reliability performance. The capacitor comprises an anode; a dielectric on the anode; and a cathode on the dielectric wherein the cathode comprises a conductive polymer and a polyanion wherein the polyanion is a copolymer comprising groups A, B and C represented by Formula AxByCz as described herein.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: March 16, 2021
    Assignee: KEMET Electronics Corporation
    Inventors: Ajaykumar Bunha, Antony P. Chacko, Yaru Shi, Qingping Chen, Philip M. Lessner
  • Patent number: 10943742
    Abstract: A capacitor, and process for forming a capacitor, is described wherein the capacitor comprises a conductive polymer layer. The conductive polymer comprises first particles comprising conductive polymer and polyanion and second particles comprising the conductive polymer and said polyanion wherein the first particles have an average particle diameter of at least 1 micron to no more than 10 microns and the second particles have an average particle diameter of at least 1 nm to no more than 600 nm.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: March 9, 2021
    Assignee: KEMET Electronics Corporation
    Inventors: Ajaykumar Bunha, Antony P. Chacko, Yaru Shi, Qingping Chen, Philip M. Lessner
  • Publication number: 20210065994
    Abstract: An improved capacitor is provided. The capacitor comprises a working element wherein the working element comprises an anode comprising a first dielectric on the anode, a cathode and a conductive separator between the first dielectric and cathode. The conductive separator comprises a separator and a first conductive polymer wherein the first conductive polymer at least partially encapsulates the separator. A second conductive polymer at least partially encapsulates the first conductive polymer and wherein the first conductive polymer has a higher conductivity than the second conductive polymer. An anode lead is in electrical contact with the anode and a cathode lead is in electrical contact with the cathode.
    Type: Application
    Filed: September 3, 2019
    Publication date: March 4, 2021
    Inventors: Victor Andoralov, Miguel Evaristo, Rui A. Monteiro, Philip M. Lessner
  • Publication number: 20210005396
    Abstract: An improved capacitor is provided wherein the capacitor comprising an anode foil; and a conductive polymer layer on the anode foil. The conductive polymer layer comprises first particles comprising conductive polymer and polyanion and second particles comprising the conductive polymer and the polyanion wherein the first particles have an average particle diameter of at least 1 micron to no more than 10 microns. The second particles have an average particle diameter of at least 1 nm to no more than 600 nm.
    Type: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Inventors: Ajaykumar Bunha, Antony P. Chacko, Qingping Chen, Yaru Shi, Philip M. Lessner
  • Publication number: 20200388441
    Abstract: Provided is an improved capacitor and a method of making an improved capacitor. The capacitor comprises a hermetically sealed casing with a capacitive element in the hermetically sealed casing. The capacitive element comprises a cathode with an ionic liquid in the cathode.
    Type: Application
    Filed: June 3, 2019
    Publication date: December 10, 2020
    Inventors: Antony P. Chacko, Elisabeth Crittendon Key, Philip M. Lessner
  • Patent number: 10840023
    Abstract: An improved multilayered ceramic capacitor is provided wherein the capacitor has improved heat dissipation properties. The capacitor comprises first internal electrodes and second internal electrodes wherein the first internal electrodes are parallel with, and of opposite polarity, to the second internal electrodes. Dielectric layers are between the first internal electrodes and second internal electrodes and a thermal dissipation channel is in at least one dielectric layer. A thermal transfer medium is in the thermal dissipation channel.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 17, 2020
    Assignee: KEMET Electronics Corporation
    Inventors: John Bultitude, Philip M. Lessner, Abhijit Gurav
  • Publication number: 20200357577
    Abstract: An improved capacitor is provided wherein the capacitor comprises a conductive polymer layer. The conductive polymer comprises first particles comprising conductive polymer and polyanion and second particles comprising the conductive polymer and said polyanion wherein the first particles have an average particle diameter of at least 1 micron to no more than 10 microns and the second particles have an average particle diameter of at least 1 nm to no more than 600 nm.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 12, 2020
    Inventors: Ajaykumar Bunha, Antony P. Chacko, Yaru Shi, Qingping Chen, Philip M. Lessner
  • Patent number: 10777362
    Abstract: An improved capacitor, and method of manufacturing the improved capacitor, is provided. The method includes deoxygenating and leaching the anode wire to produce a capacitor comprising an anode having a surface area of at least 4.0 m2/g or a charge density of at least 200,000 CV/g with the anode wire having an equivalent diameter of less than 0.30 mm extending from said anode. A dielectric is on the anode and a cathode is on the dielectric.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: September 15, 2020
    Assignee: KEMET Electronics Corporation
    Inventors: Steven C. Hussey, Yuri Freeman, Christian Guerrero, Chris Stolarski, Jeffrey N. Kelly, Philip M. Lessner, Siva Jyoth Lingala, Javaid Qazi
  • Patent number: 10770240
    Abstract: An improved capacitor is described wherein the capacitor comprises a working element. The working element comprises a first dielectric and an anode conductive polymer layer on the first dielectric. The working element also comprises a cathode and a separator between the anode conductive polymer layer and the cathode wherein the separator comprises a separator conductive polymer layer wherein at least one of the anode conductive polymer layer or the separator conductive polymer layer is crosslinked. The working element also comprises a liquid electrolyte.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: September 8, 2020
    Assignee: KEMET Electronics Corporation
    Inventors: Victor Andoralov, Débora Sá, Alexandre Guerreiro Fonseca, Antony P. Chacko, Yaru Shi, Philip M. Lessner