Patents by Inventor Thomas Kampfe

Thomas Kampfe 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).

  • ELECTRIC CIRCUIT ASSEMBLY COMPRISING A FERROELECTRIC FIELD EFFECT TRANSISTOR, AND MEMORY CELL
    Publication number: 20240055036
    Abstract: An electric circuit assembly comprising a ferroelectric field effect transistor, an electric energy source, and a resistive element having a minimum electric resistance of 100 kOhm. The resistive element is electrically connected to a drain terminal of the ferroelectric field effect transistor, and the electric energy source is electrically connected to a gate terminal and a source terminal of the ferroelectric field effect transistor.
    Type: Application
    Filed: December 14, 2021
    Publication date: February 15, 2024
    Applicant: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.
    Inventors: Thomas Kampfe, Nelli Laleni
  • Security element
    Patent number: 9004540
    Abstract: The present invention relates to a security element (20) for security papers, value documents and the like, having a feature region (24) that selectively influences incident electromagnetic radiation (30). According to the present invention, it is provided that the feature region (24) includes metallic nanopatterns (28) in which volume or surface plasmons are excited and/or resonance effects are caused by the incident electromagnetic radiation (30).
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: April 14, 2015
    Assignee: Giesecke & Devrient GmbH
    Inventors: Michael Rahm, Marius Dichtl, Manfred Heim, Hans Lochbihler, Thomas Kampfe, Thomas Pertsch, Jorg Petschulat, Ernst-Bernhard Kley
  • SECURITY ELEMENT
    Publication number: 20100307705
    Abstract: The present invention relates to a security element (20) for security papers, value documents and the like, having a feature region (24) that selectively influences incident electromagnetic radiation (30). According to the present invention, it is provided that the feature region (24) includes metallic nanopatterns (28) in which volume or surface plasmons are excited and/or resonance effects are caused by the incident electromagnetic radiation (30).
    Type: Application
    Filed: December 17, 2008
    Publication date: December 9, 2010
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Michael Rahm, Marius Dichtl, Manfred Heim, Hans Lochbihler, Thomas Kampfe, Thomas Pertsch, Jorg Petschulat, Ernst-Bernhard Kley