Patents by Inventor László Dobai

László Dobai 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).

  • Hybrid polymer aluminum electrolytic capacitor and method of manufacturing a capacitor
    Patent number: 11942280
    Abstract: A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: March 26, 2024
    Assignee: TDK Electronics AG
    Inventors: Norbert Will, László Dobai, Péter Kerepesi, Csaba Tóth
  • Hybrid polymer aluminum electrolytic capacitor and method of manufacturing a capacitor
    Patent number: 11935707
    Abstract: In an embodiment, a capacitor includes a winding element having a diameter of more than 10 mm, at least two tabs electrically contacted with an anode foil and at least two tabs electrically contacted with a cathode foil, wherein the capacitor is a hybrid polymer aluminum electrolytic capacitor, wherein the winding element is arranged inside a can having a can bottom, and wherein the can comprises a corrugation which fixes the winding element.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: March 19, 2024
    Assignee: TDK Electronics AG
    Inventors: Norbert Will, László Dobai, Péter Kerepesi, Csaba Tóth
  • Hybrid polymer aluminum electrolytic capacitor and method of manufacturing a capacitor
    Patent number: 11823847
    Abstract: A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed. In an embodiment a method for manufacturing a capacitor includes winding an anode foil, separators and a cathode foil around an axis to form a winding element, flooding the winding element with a polymer dispersion, wherein the polymer dispersion contains electrically conductive solid polymer particles or a polymer powder and a solvent and applying pulses of overpressure to the flooded winding element.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: November 21, 2023
    Assignee: TDK Electronics AG
    Inventors: Norbert Will, László Dobai, Péter Kerepesi, Csaba Tóth
  • Hybrid polymer aluminum electrolytic capacitor and method of manufacturing a capacitor
    Patent number: 11776761
    Abstract: A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed. In an embodiment a method for manufacturing a capacitor includes winding an anode foil, separators and a cathode foil around an axis to form a winding element, flooding the winding element with a polymer dispersion, wherein the polymer dispersion contains electrically conductive solid polymer particles or a polymer powder and a solvent and applying pulses of overpressure to the flooded winding element.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: October 3, 2023
    Assignee: TDK Electronics AG
    Inventors: Norbert Will, László Dobai, Péter Kerepesi, Csaba Tóth
  • Method of manufacturing a polymer capacitor and polymer capacitor
    Patent number: 11282650
    Abstract: A method for manufacturing a polymer capacitor and a polymer capacitor are disclosed. In an embodiment a method for manufacturing a polymer capacitor includes winding an anode foil, a cathode foil and separator foils to form a winding, impregnating the winding with a dispersion comprising a solvent and a polymer precursor and extracting the solvent from the winding by supercritical fluid extraction.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: March 22, 2022
    Assignee: TDK ELECTRONICS AG
    Inventor: Laszlo Dobai
  • Method of Manufacturing a Polymer Capacitor and Polymer Capacitor
    Publication number: 20220076896
    Abstract: A method for manufacturing a polymer capacitor and a polymer capacitor are disclosed. In an embodiment a polymer capacitor includes an anode foil, a cathode foil and separator foils wound to a winding, wherein the anode foil is covered by a polymer, wherein one or more additives are distributed in the polymer, and wherein at least one of the additives has a boiling point below 130° C.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Inventor: Laszlo Dobai
  • Hybrid Polymer Aluminum Electrolytic Capacitor and Method of Manufacturing a Capacitor
    Publication number: 20220013300
    Abstract: A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 13, 2022
    Inventors: Norbert Will, László Dobai, Péter Kerepesi, Csaba Tóth
  • Hybrid Polymer Aluminum Electrolytic Capacitor and Method of Manufacturing a Capacitor
    Publication number: 20220013301
    Abstract: In an embodiment, a capacitor includes a winding element having a diameter of more than 10 mm, at least two tabs electrically contacted with an anode foil and at least two tabs electrically contacted with a cathode foil, wherein the capacitor is a hybrid polymer aluminum electrolytic capacitor, wherein the winding element is arranged inside a can having a can bottom, and wherein the can comprises a corrugation which fixes the winding element.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Inventors: Norbert Will, László Dobai, Péter Kerepesi, Csaba Tóth
  • Hybrid Polymer Aluminum Electrolytic Capacitor and Method of Manufacturing a Capacitor
    Publication number: 20220013299
    Abstract: A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed. In an embodiment a method for manufacturing a capacitor includes winding an anode foil, separators and a cathode foil around an axis to form a winding element, flooding the winding element with a polymer dispersion, wherein the polymer dispersion contains electrically conductive solid polymer particles or a polymer powder and a solvent and applying pulses of overpressure to the flooded winding element.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 13, 2022
    Inventors: Norbert Will, László Dobai, Péter Kerepesi, Csaba Tóth
  • Hybrid polymer aluminum electrolytic capacitor and method of manufacturing a capacitor
    Patent number: 11158464
    Abstract: A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed. In an embodiment a hybrid polymer aluminum electrolytic capacitor includes a winding element having a diameter of more than 10 mm, at least two tabs electrically contacted with an anode foil and at least two tabs electrically contacted with a cathode foil.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: October 26, 2021
    Assignee: TDK ELECTRONICS AG
    Inventors: Norbert Will, László Dobai, Péter Kerepesi, Csaba Tóth
  • Electrolytic capacitor
    Patent number: 11049662
    Abstract: An electrolytic capacitor is disclosed. In an embodiment an electrolytic capacitor includes an anode foil, a cathode foil, a working electrolyte arranged between the anode foil and the cathode foil, a polymer layer arranged on the anode foil, wherein the polymer layer comprises PEDOT:PSS and an intermediate electrolyte arranged between the polymer layer and the working electrolyte, wherein the intermediate electrolyte is different from the working electrolyte with respect to its composition.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 29, 2021
    Assignee: TDK ELECTRONICS AG
    Inventor: Laszlo Dobai
  • Method of Manufacturing a Polymer Capacitor and Polymer Capacitor
    Publication number: 20200251286
    Abstract: A method for manufacturing a polymer capacitor and a polymer capacitor are disclosed. In an embodiment a method for manufacturing a polymer capacitor includes winding an anode foil, a cathode foil and separator foils to form a winding, impregnating the winding with a dispersion comprising a solvent and a polymer precursor and extracting the solvent from the winding by supercritical fluid extraction.
    Type: Application
    Filed: July 25, 2018
    Publication date: August 6, 2020
    Inventor: Laszlo Dobai
  • Electrolytic Capacitor
    Publication number: 20200251287
    Abstract: An electrolytic capacitor is disclosed. In an embodiment an electrolytic capacitor includes an anode foil, a cathode foil, a working electrolyte arranged between the anode foil and the cathode foil, a polymer layer arranged on the anode foil, wherein the polymer layer comprises PEDOT:PSS and an intermediate electrolyte arranged between the polymer layer and the working electrolyte, wherein the intermediate electrolyte is different from the working electrolyte with respect to its composition.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 6, 2020
    Inventor: Laszlo Dobai
  • Hybrid Polymer Aluminum Electrolytic Capacitor and Method of Manufacturing a Capacitor
    Publication number: 20190311858
    Abstract: A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed. In an embodiment a hybrid polymer aluminum electrolytic capacitor includes a winding element having a diameter of more than 10 mm, at least two tabs electrically contacted with an anode foil and at least two tabs electrically contacted with a cathode foil.
    Type: Application
    Filed: December 19, 2017
    Publication date: October 10, 2019
    Inventors: Norbert Will, László Dobai, Péter Kerepesi, Csaba Tóth