Patents by Inventor Michael Vergohl

Michael Vergohl 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: 20120164051
    Abstract: The present invention relates to a method for the enhanced production of insulating layers by High Power Impulse Magnetron Sputtering (HiPIMS) or High Power Pulsed Magnetron Sputtering (HPPMS). This method is preferably used for the production of oxynitride layers with variable amounts of oxide and nitride, preferably based on silicon and aluminium.
    Type: Application
    Filed: May 5, 2010
    Publication date: June 28, 2012
    Inventors: Stefan Bruns, Oliver Werner, Michael Vergohl
  • Publication number: 20110164317
    Abstract: Rear projection device, rear projection screen and associated method for representing static or moving images, for improving the representation, particularly in ambient light, comprising at least one projection screen (107) and at least one light source (101) that is provided for rear projection onto a projection screen (107) adjusted to be spectral-selectively absorbing for an ambient light, at least outside of at least one narrowband transmission spectral range, wherein projection screen (107) permits a transmission of useful light inside the transmission spectral range.
    Type: Application
    Filed: March 3, 2006
    Publication date: July 7, 2011
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Michael Vergohl, Frank Neumann, Christoph Rickers
  • Publication number: 20100240531
    Abstract: The present invention relates to a process for the vacuum-based deposition of a titanium oxide layer from the gas phase on a substrate, wherein deposition is carried out from a source containing titanium oxide at a deposition rate of less than 25 nm/s in an oxygen-containing atmosphere and at a substrate temperature of less than 500° C. and, after deposition, the coated substrate is heat treated for a period of at least 30 minutes in an oxygen-containing atmosphere at temperatures in the range from 200° C. to 1000° C.
    Type: Application
    Filed: May 30, 2008
    Publication date: September 23, 2010
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewand ten Forschung E.V.
    Inventors: Thomas Neubert, Frank Neumann, Michael Vergohl
  • Publication number: 20080278817
    Abstract: The invention relates to a layered system of a component that can be thermally stressed, comprising at least one for expanding the application scope of layered systems and in particular for improving their life cycle. Said layer has at least one first and at least one second material and a mixture profile (1) that varies at least almost continuously with the layer thickness, without forming a boundary layer between the first and second material.
    Type: Application
    Filed: May 22, 2008
    Publication date: November 13, 2008
    Applicant: Fraunhofer-Gesellschaft Patente und Lizenzen
    Inventors: Michael Vergohl, Christoph Rickers, Frank Neumann, Christina Polenzky
  • Publication number: 20060280950
    Abstract: High temperature-resistant transparent coatings based on zirconium oxide, which have improved dispersion properties and a high refractive index, comprise zirconium oxide with at least one additive from the group consisting of tantalum and/or tantalum oxide, whereby the proportion of Ta atoms, in relation to the total number of metal atoms in the coating is in the range of 5 to 30%.
    Type: Application
    Filed: January 21, 2004
    Publication date: December 14, 2006
    Inventors: Arnd Ritz, Michael Vergohl, Berno Hunsche
  • Publication number: 20060255739
    Abstract: Transparent, temperature-stable coatings based on titanium oxide with a high refractive index and improved thermal and mechanical properties comprise titanium oxide with at least one additive from the group comprising aluminum and/or aluminum oxide, whereby the proportion of Al atoms in the coating, with reference to the total number of metal atoms in the coating is in the range from 2 to 4%.
    Type: Application
    Filed: January 21, 2004
    Publication date: November 16, 2006
    Inventors: Arnd Ritz, Michael Vergohl, Berno Hunsche