Patents by Inventor Andrea A. Seifert

Andrea A. Seifert 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: 20040155188
    Abstract: The invention concerns an infrared sensor (2) comprising a plurality of pixels (12) having a structured layer (20) for infrared light absorption located at the sensor upper surface. The invention is characterised in that the absorption layer (20) is formed of colloidal particles, in particular graphite or metal oxide wafers embedded or sealed in a binder. The method for making such a sensor consists in forming the structured layer by deposit of the colloidal particles in accordance with a standard technique and then in eliminating partly the thus formed absorption layer to obtain a plurality of elementary absorption zones respectively associated with the plurality of pixels.
    Type: Application
    Filed: December 8, 2003
    Publication date: August 12, 2004
    Inventors: Markus Kohli, Andreas Seifert, Bert Willing
  • Publication number: 20040130809
    Abstract: A focusing-device for the radiation from a light source (2) is provided with a collector mirror (1, 1′) which is arranged in a mount (24) and collects the light, in virtual or real terms, from the light source (2) at the second focus (200). The collector mirror (1, 1′) is displaceably connected to the mount (24) via a bearing in such a way that its optical properties remain at least approximately the same even in the event of temperature changes.
    Type: Application
    Filed: September 30, 2003
    Publication date: July 8, 2004
    Applicant: Carl Zeiss SMT AG
    Inventors: Martin Antoni, Frank Melzer, Andreas Seifert, Wolfgang Singer
  • Patent number: 6655808
    Abstract: A focusing-device for the radiation from a light source, in particular a laser plasma source, has a collector mirror which collects the light from the light source at a second focus in virtual or real terms, in particular for micro-lithography using EUV radiation, and a routing unit and downstream beam formation in an illuminating system. The collector mirror can be displaced in the z-direction (optical axis) and is designed and/or mounted in such a way that the position of the second focus remains unchanged in the event of temperature changes.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: December 2, 2003
    Assignee: Carl Zeiss SMT AG
    Inventors: Martin Antoni, Frank Melzer, Andreas Seifert, Wolfgang Singer
  • Publication number: 20030173519
    Abstract: The pyroelectric sensor includes a plurality of pixels (12A) each formed of a thin pyroelectric film (20A) and first and second electrodes (14, 28) arranged on either side of said film. The lower electrodes (28) are structured, i.e. they are micromachined so as to form electrodes belonging to the pixels so as to reduce the thermal cross-talk between the pixels. The pyroelectric film is porous. According to a preferred embodiment of the invention, the porous pyroelectric film is continuous and uniformly deposited on the sensor substrate. The porous films have reduced thermal conductivity, allowing sensors with a high level resolution to be obtained without requiring micromachining of the pyroelectric layer between the pixels.
    Type: Application
    Filed: January 22, 2003
    Publication date: September 18, 2003
    Inventors: Andreas Seifert, Paul Muralt
  • Publication number: 20020113954
    Abstract: A focusing-device for the radiation from a light source, in particular a laser plasma source, has a collector mirror which collects the light from the light source at a second focus in virtual or real terms, in particular for micro-lithography using EUV radiation, and a routing unit and downstream beam formation in an illuminating system. The collector mirror ca n be displaced in the z-direction (optical axis) and is designed and/or mounted in such a way that the position of the second focus remains unchanged in the event of temperature changes.
    Type: Application
    Filed: September 10, 2001
    Publication date: August 22, 2002
    Inventors: Martin Antoni, Frank Melzer, Andreas Seifert, Wolfgang Singer
  • Patent number: 4960694
    Abstract: A test reagent for detecting fibrin monomers in blood, comprises an antibiotic of a pyrrole amidine series as a precipitant, introduced in a buffer solution. A method of detecting fibrin monomers in blood, comprises the steps of mixing venous blood with an anticoagulant, centrifuging the mixture of the venous blood with the anticoagulant, removing a citrate plasma, using an antibiotic of a pyrrole amidine series as a precipitant, and evaluating a precipitation reaction which takes place thereby.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: October 2, 1990
    Inventors: Klaus Eckardt, Gottfried Toepfer, Andreas Seifert, Manfred Schulze, Udo Funke, Marlena Stepanauskas, deceased, by Leonas-Vitas Stepanauskas, legal representative, Daina Stepanauskas, legal representative, Heinz Thrum, deceased, by Margot Thrum, legal representative, by Matthias Thrum, legal representative, by Michael Thrum, legal representative
  • Patent number: D472113
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: March 25, 2003
    Inventor: Andrea A. Seifert