Patents by Inventor Volker Wischnat

Volker Wischnat 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: 11740280
    Abstract: An electric component with a fail safe element is disclosed. In an embodiment a component includes a functional element and a fail safe element electrically interconnected therewith, wherein the fail safe element is configured to ensure a minimum resistance or a minimum conductivity of the component in the event of a failure of the functional element.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: August 29, 2023
    Assignee: TDK Electronics AG
    Inventors: Alfred Hofrichter, Volker Wischnat, Johann Pichler
  • Patent number: 11289244
    Abstract: An electronic component is disclosed. In an embodiment, an electronic component includes at least one NTC element and at least two electrically conductive contact elements, wherein the NTC element is electrically conductively connected to a respective contact element via a connection material, and wherein a coefficient of thermal expansion of the contact elements is adapted to a coefficient thermal expansion of the NTC element.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: March 29, 2022
    Assignee: EPCOS AG
    Inventors: Volker Wischnat, Alfred Hofrichter, Franz Rinner
  • Publication number: 20200209305
    Abstract: An electric component with a fail safe element is disclosed. In an embodiment a component includes a functional element and a fail safe element electrically interconnected therewith, wherein the fail safe element is configured to ensure a minimum resistance or a minimum conductivity of the component in the event of a failure of the functional element.
    Type: Application
    Filed: May 24, 2018
    Publication date: July 2, 2020
    Inventors: Alfred Hofrichter, Volker Wischnat, Johann Pichler
  • Publication number: 20200118718
    Abstract: An electronic component is disclosed. In an embodiment, an electronic component includes at least one NTC element and at least two electrically conductive contact elements, wherein the NTC element is electrically conductively connected to a respective contact element via a connection material, and wherein a coefficient of thermal expansion of the contact elements is adapted to a coefficient thermal expansion of the NTC element.
    Type: Application
    Filed: April 18, 2017
    Publication date: April 16, 2020
    Applicants: EPCOS AG, EPCOS AG
    Inventors: Volker Wischnat, Alfred Hofrichter, Franz Rinner
  • Publication number: 20120175149
    Abstract: The invention relates to a functional module and a method for producing a functional module. The functional module includes an outer tube having a first and second end face and an inner surface. The functional module also includes an inner tube having a first and second end face and a lateral surface disposed within the outer tube. At least one molded part is disposed in a form-fitting manner between the inner surface of the outer tube and the shell surface of the inner tube. The functional module has a material with a positive temperature coefficient of electrical resistance. The first end face of the inner tube and the outer tube is disposed on an electrically isolative substrate and the molded part is thereby fixed between the outer tube and the inner tube by clamping force.
    Type: Application
    Filed: July 30, 2010
    Publication date: July 12, 2012
    Applicant: EPCOS AG
    Inventors: Jan Ihle, Werner Kahr, Volker Wischnat, Steffen Mehlig
  • Patent number: 8081485
    Abstract: A component assembly includes an electric component with a body and a carrier substrate on which the component is fixed by means of a conductive adhesive layer. External electrical contacts that have a planar surface are arranged on the lower side of the body. The conductive adhesive acts upon the body in at least one contact region that is devoid of the external electrical contacts.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: December 20, 2011
    Assignee: EPCOS AG
    Inventor: Volker Wischnat
  • Publication number: 20110297666
    Abstract: A heating apparatus and a method for producing a heating apparatus are specified. The heating apparatus comprises a pipe (10), which is suitable for conducting a medium and has an outer surface, and at least one injection-molded shaped body on the outer surface of the pipe (10). The shaped body comprises a material with a positive temperature coefficient of electrical resistance and is adapted to the outer surface of the pipe (10).
    Type: Application
    Filed: July 3, 2009
    Publication date: December 8, 2011
    Applicant: EPCOS AG
    Inventors: Jan Ihle, Wemer Kahr, Volker Wischnat
  • Patent number: 8044760
    Abstract: A multilayer element has a body in which at least one first internal electrode and at least one second internal electrode are arranged. These internal electrodes have an overlapping region, which extends up to the surface of the body on at least one side. The internal electrodes have a recess in a corner region of the body.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: October 25, 2011
    Assignee: EPCOS AG
    Inventors: Thomas Feichtinger, Guenter Engel, Volker Wischnat, Thomas Hoelbling
  • Publication number: 20100025075
    Abstract: A multilayer element has a body in which at least one first internal electrode and at least one second internal electrode are arranged. These internal electrodes have an overlapping region, which extends up to the surface of the body on at least one side. The internal electrodes have a recess in a corner region of the body.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 4, 2010
    Inventors: Thomas Feichtinger, Guenter Engel, Volker Wischnat, Thomas Hoelbling
  • Publication number: 20090290284
    Abstract: An electric component has a base body. A surface of the base body is provided with at least one first electrically conductive material layer and the first material layer is coated with a further electrically conductive material layer on the surface facing away from the base body. The material layers form at least part of an external contact that has a closed, porous, outer surface.
    Type: Application
    Filed: June 19, 2009
    Publication date: November 26, 2009
    Inventors: Andreas Gabler, Volker Wischnat
  • Publication number: 20090272569
    Abstract: A component assembly includes an electric component with a body and a carrier substrate on which the component is fixed by means of a conductive adhesive layer. External electrical contacts that have a planar surface are arranged on the lower side of the body. The conductive adhesive acts upon the body in at least one contact region that is devoid of the external electrical contacts.
    Type: Application
    Filed: May 12, 2009
    Publication date: November 5, 2009
    Inventor: Volker Wischnat
  • Publication number: 20090116168
    Abstract: An electrical multiple-layer component is described herein. The component includes a base body having dielectric layers and internal electrodes. The internal electrodes are of connected to each other electrically between the dielectric layers via at least one external electrode on side surfaces of the base body. The component also includes an electrical connection between the external electrode and a contact surface on a surface of the base body and insulated relative to an outer side of the component.
    Type: Application
    Filed: April 11, 2006
    Publication date: May 7, 2009
    Inventors: Christian Block, Gunter Engel, Thomas Feichtinger, Volker Wischnat
  • Patent number: 7135955
    Abstract: An electrical component includes a base having at least a first ceramic section and a second ceramic section. The first ceramic section and the second ceramic section include different materials, which have resistances with negative temperature coefficients. The component also includes first and second contact layers on the base. The first and second ceramic sections are between the first and second contact layers. A plurality of stacks of electrically conductive electrode layers are arranged inside the base. Stacks of electrode layers are electrically connected to the first and second contact layers.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: November 14, 2006
    Assignee: EPCOS AG
    Inventors: Thomas Feichtinger, Christian Hesse, Robert Krumphals, Axel Pecina, Volker Wischnat
  • Publication number: 20050062582
    Abstract: The present invention describes an NTC element having a body that includes at least a first (2) and a second (5) three-dimensionally formed ceramic section of different NTC materials, where at least a first and a second contact layer are provided on the surface of the body. In addition, electrically conductive electrode layers are present in the interior of the body. By varying both the relative arrangement and the relative proportions of the two ceramic sections in the body, through suitable combinations of materials and variation of the layers of electrodes, it is possible to produce NTC elements with different electrical properties while the dimensions of the body remain the same.
    Type: Application
    Filed: December 2, 2002
    Publication date: March 24, 2005
    Inventors: Thomas Feichtinger, Christian Hesse, Robert Krumphals, Axel Pecina, Volker Wischnat