Patents by Inventor Bruno Schaefer

Bruno Schaefer 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: 9507320
    Abstract: The invention relates to a method for transferring surface structures such as interference layers, holograms, and other highly refractive optical microstructures to substrates. The aim of the invention is to devise a method which is used for transferring surface structures such as interference layers, holograms, and other highly refractive optical microstructures to substrates and can also be used in a high temperature range. The aim is achieved by a method comprising the following steps: a) a flexible intermediate support layer is applied to a support film as a release layer; b) an embossed sol is applied to the intermediate support layer and is provided with a surface structure; c) a stack encompassing a binder layer and the surface structure is produced; d) the support film is removed; e) the workpiece is thermally treated.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: November 29, 2016
    Assignee: LEIBNIZ-INSTITUT FUER NEUE MATERIALIEN GEMEINNUETZIGE GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Peter William Oliveira, Bruno Schaefer, Christine Faller-Schneider, Michael Veith
  • Publication number: 20100032083
    Abstract: The invention relates to a method for transferring surface structures such as interference layers, holograms, and other highly refractive optical microstructures to substrates. The aim of the invention is to devise a method which is used for transferring surface structures such as interference layers, holograms, and other highly refractive optical microstructures to substrates and can also be used in a high temperature range. The aim is achieved by a method comprising the following steps: a) a flexible intermediate support layer is applied to a support film as a release layer; b) an embossed sol is applied to the intermediate support layer and is provided with a surface structure; c) a stack encompassing a binder layer and the surface structure is produced; d) the support film is removed; e) the workpiece is thermally treated.
    Type: Application
    Filed: February 14, 2008
    Publication date: February 11, 2010
    Inventors: Peter William Oliveira, Bruno Schaefer, Christine Faller-Schneider, Michael Veith
  • Patent number: 6855371
    Abstract: A method is described for producing a microstructured surface relief by applying to a substrate a coating composition which is thixotropic or which acquires thixotropic properties by pretreatment on the substrate, embossing the surface relief into the applied thixotropic coating composition with an embossing device, and curing the coating composition following removal of the embossing device. The substrates obtainable by this method, provided with a microstructured surface relief, are particularly suitable for optical, electronic, micromechanical and/or dirt repellency applications.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: February 15, 2005
    Assignee: Institut fuer Neue Materialien gemeinnuetzige GmbH
    Inventors: Andreas Gier, Nora Kunze, Martin Mennig, Peter W. Oliveira, Stefan Sepeur, Bruno Schaefer, Helmut Schmidt
  • Publication number: 20040026832
    Abstract: A method is described for producing a microstructured surface relief by applying to a substrate a coating composition which is thixotropic or which acquires thixotropic properties by pretreatment on the substrate, embossing the surface relief into the applied thixotropic coating composition with an embossing device, and curing the coating composition following removal of the embossing device. The substrates obtainable by this method, provided with a microstructured surface relief, are particularly suitable for optical, electronic, micromechanical and/or dirt repellency applications.
    Type: Application
    Filed: July 10, 2002
    Publication date: February 12, 2004
    Inventors: Andreas Gier, Nora Kunze, Martin Mennig, Peter W. Oliveira, Bruno Schaefer, Helmut Schmidt