Patents by Inventor Ralph Wilken

Ralph Wilken 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: 11945982
    Abstract: The invention relates to a method for producing an electrical sheet pack using an anaerobically curing adhesive, to an electrical sheet pack produced or producible by such a method, and to a device for creating an electrical sheet pack of the invention.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: April 2, 2024
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Ralph Wilken, Matthias Popp, Jost Degenhardt
  • Publication number: 20230312984
    Abstract: The invention relates to a method for producing an electrical sheet pack using an anaerobically curing adhesive, to an electrical sheet pack produced or producible by such a method, and to a device for creating an electrical sheet pack of the invention.
    Type: Application
    Filed: November 2, 2018
    Publication date: October 5, 2023
    Inventors: Ralph Wilken, Matthias Popp, Jost Degenhardt
  • Patent number: 11702735
    Abstract: The invention relates to the use of a carbonaceous coating for protection of a passive electrical component from attack by ammonia, wherein the carbonaceous coating is a sol-gel coating or a plasma-polymeric coating. This coating comprises a particular carbon content.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: July 18, 2023
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Dirk Salz, Andreas Stake, Malte Burchardt, Franz-Josef Wöstmann, Stefan Dieckhoff, Christoph Regula, Christopher Dölle, Ralph Wilken
  • Publication number: 20230150868
    Abstract: Substrate with transparent outer layer, wherein a transparent interdigital structure is disposed between the substrate and the outer layer.
    Type: Application
    Filed: April 1, 2021
    Publication date: May 18, 2023
    Inventors: Ralph Wilken, Uwe Specht, Thomas Lukasczyk
  • Patent number: 11646148
    Abstract: The invention relates to a passive electrical component, especially a coil, having an interlayer, wherein the interlayer has a lower coefficient of thermal expansion than the surface of the passive electrical component covered with the interlayer, and disposed atop that a plasma-polymeric carbon-containing coating having a carbon content measured at a depth of 80 nm away from the side of the plasma-polymeric coating remote from the interlayer, wherein the plasma-polymeric coating comprises a carbon content of 50 to 100 atom %, preferably 50 to 90 atom %, or is configured as an organometallic coating a carbon content of 2 to 50 atom %, in each case measured by means of XPS.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: May 9, 2023
    Assignee: Fraunhofer-Gesellschaft zur Förderung dee angewandten Forschung e.V.
    Inventors: Dirk Salz, Ralph Wilken, Stefan Dieckhoff, Malte Burchardt, Christopher Dölle, Christoph Regula, Franz-Josef Wöstmann
  • Publication number: 20220048133
    Abstract: An article having a metal substrate and a channel in the metal substrate which is partly or completely open to the surface, wherein the cross section of the channel has a local width maximum (5) between the channel base (7) and the contact plane (1), measured parallel to the contact plane and at right angles to the longitudinal channel axis in the section perpendicular to the surface. (FIG.
    Type: Application
    Filed: December 18, 2019
    Publication date: February 17, 2022
    Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein
    Inventors: Uwe Specht, Dirk Salz, Thomas Lukasczyk, Ralph Wilken, Kai Borcherding, Linda Gätjen, Tim Heusinger von Waldegge, Nane Nolte
  • Publication number: 20200340105
    Abstract: The invention relates to the use of a carbonaceous coating for protection of a passive electrical component from attack by ammonia, wherein the carbonaceous coating is a sol-gel coating or a plasma-polymeric coating. This coating comprises a particular carbon content.
    Type: Application
    Filed: October 23, 2018
    Publication date: October 29, 2020
    Inventors: Dirk Salz, Andreas Stake, Malte Burchardt, Franz-Josef Wöstmann, Stefan Dieckhoff, Christoph Regula, Christopher Dölle, Ralph Wilken
  • Publication number: 20200020953
    Abstract: A method for depositing a plasma polymer layer in an atmospheric-pressure plasma on a metallic substrate, wherein the plasma is obtained by a discharge between two electrodes. At least one organic coating precursor compound is fed into the region of the relaxing plasma and is deposited on the metallic substrate as a plasma polymer layer. Nitrogen or a forming gas is used as a treatment gas and the at least one organic coating precursor compound is selected from various compounds. Also disclosed is an article, an electrode and a capacitor which utilize the method and include a metallic substrate having a surface and a plasma polymer layer on the surface. Also disclosed is a method for producing the electrode or for producing the capacitor, a battery cell or a lithium-ion accumulator which comprises the electrode.
    Type: Application
    Filed: January 31, 2018
    Publication date: January 16, 2020
    Inventors: Christoph Regula, Joerg Ihde, Ralph Wilken, Jost Degenhardt, Alexander Knospe, Syed Salman Asad, Christian Buske
  • Publication number: 20190206608
    Abstract: The invention relates to a passive electrical component, especially a coil, having an interlayer, wherein the interlayer has a lower coefficient of thermal expansion than the surface of the passive electrical component covered with the interlayer, and disposed atop that a plasma-polymeric carbon-containing coating having a carbon content measured at a depth of 80 nm away from the side of the plasma-polymeric coating remote from the interlayer, wherein the plasma-polymeric coating comprises a carbon content of 50 to 100 atom %, preferably 50 to 90 atom %, or is configured as an organometallic coating a carbon content of 2 to 50 atom %, in each case measured by means of XPS.
    Type: Application
    Filed: August 4, 2017
    Publication date: July 4, 2019
    Inventors: Dirk Salz, Ralph Wilken, Stefan Dieckhoff, Malte Burchardt, Christopher Dölle, Christoph Regula, Franz-Josef Wöstmann
  • Patent number: 10100165
    Abstract: Siliconized release film for the production of polymer moldings from fiber composites using a mold, which comprises a support film which is capable of vacuum deep drawing at room temperature and a coating which can be applied in liquid form and consists, optionally after removal of any solvent, of more than 90 atom % of silicon, carbon and/or oxygen, more than 45 atom % of carbon and more than 20 atom % of silicon, in each case based on the total coating and measured by XPS, characterized in that the coating has been crosslinked by means of condensation reactions, addition reactions or radiation.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: October 16, 2018
    Assignee: Fraunhofer-Gesellschaft z. Förderung der angewandten Forschung e.V.
    Inventors: Ralph Wilken, Matthias Ott, Klaus-Dieter Vissing, Gregor Grassl
  • Patent number: 9968715
    Abstract: The invention relates to medical technology products, for example a medical implant or a medical instrument, having colored markings based on titanium oxides, to the use of coatings based on titanium oxides for the production of coated materials, such as medical technology products, in particular for titanium oxide-based coating for the colored marking of the surface of medical technology products, and to a method for depositing colored markings based on titanium oxides on medical technology products.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: May 15, 2018
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN
    Inventors: Andreas Keil, Ralph Wilken, Jörg Ihde, Thomas Lukasczyk, Dirk Salz, Jost Degenhardt
  • Publication number: 20160250389
    Abstract: The invention relates to medical technology products, for example a medical implant or a medical instrument, having colored markings based on titanium oxides, to the use of coatings based on titanium oxides for the production of coated materials, such as medical technology products, in particular for titanium oxide-based coating for the colored marking of the surface of medical technology products, and to a method for depositing colored markings based on titanium oxides on medical technology products.
    Type: Application
    Filed: August 1, 2014
    Publication date: September 1, 2016
    Inventors: Andreas Keil, Ralph Wilken, Jörg Ihde, Thomas Lukasczyk, Dirk Salz, Jost Degenhardt
  • Patent number: 9259905
    Abstract: The invention relates to a method for connecting substrates including depositing a plasma polymer layer on each of a first and a second substrate by means of atmospheric pressure plasma and bringing the plasma polymer layers in contact with each other. In a variant of the method, only the first substrate is provided with a plasma polymer layer and connected to a second substrate, the surface of which can react with the plasma polymer layer. The invention further relates to composite structures which can be obtained with such methods.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: February 16, 2016
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Ralph Wilken, Jorg Ihde, Christoph Regula
  • Publication number: 20150368418
    Abstract: Siliconized release film for the production of polymer moldings from fiber composites using a mold, which comprises a support film which is capable of vacuum deep drawing at room temperature and a coating which can be applied in liquid form and consists, optionally after removal of any solvent, of more than 90 atom % of silicon, carbon and/or oxygen, more than 45 atom % of carbon and more than 20 atom % of silicon, in each case based on the total coating and measured by XPS, characterized in that the coating has been crosslinked by means of condensation reactions, addition reactions or radiation.
    Type: Application
    Filed: February 11, 2014
    Publication date: December 24, 2015
    Inventors: Ralph Wilken, Matthias Ott, Klaus-Dieter Vissing, Gregor Grassl
  • Publication number: 20130280539
    Abstract: The invention relates to a method for connecting substrates including depositing a plasma polymer layer on each of a first and a second substrate by means of atmospheric pressure plasma and bringing the plasma polymer layers in contact with each other. In a variant of the method, only the first substrate is provided with a plasma polymer layer and connected to a second substrate, the surface of which can react with the plasma polymer layer. The invention further relates to composite structures which can be obtained with such methods.
    Type: Application
    Filed: November 17, 2011
    Publication date: October 24, 2013
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewand ten Forschung e.V.
    Inventors: Ralph Wilken, Jorg Ihde, Christoph Regula
  • Publication number: 20120261391
    Abstract: Disclosed is a method for producing surface-modified particles in atmospheric pressure plasma, and a method for producing a coating with particles dispersed therein using an atmospheric pressure plasma. The plasma is produced by a discharge between electrodes in a process gas. In both methods one of the electrodes is a sputter electrode, which sputters the particles due to the discharge. Also disclosed are methods for producing composite material, with which surface-modified particles are built in a matrix, and to said composite materials. Also disclosed are plasma nozzles and devices containing said nozzles for producing surface-modified particles and coatings with the particles dispersed therein.
    Type: Application
    Filed: October 6, 2010
    Publication date: October 18, 2012
    Applicants: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., PLASMATREAT GMBH
    Inventors: Jörg Ihde, Ralph Wilken, Jost Degenhardt, Alexander Knospe, Christian Buske
  • Publication number: 20100044624
    Abstract: The invention relates to etchants for etching surfaces, in particular metal surfaces. The etchants are characterised in that they can be removed without residue from the respective etched surface.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 25, 2010
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Ralph Wilken, Stefan Dieckhoff, Andreas Hartwig, Malte Kleemeier
  • Patent number: 7410669
    Abstract: In a process according to the invention and an apparatus according to the invention for the coating or modification of a surface a flow of a first gaseous phase or of a first aerosol comprising one or more precursor compounds is guided along a heated filament so that the precursor compounds are converted into reactive compounds. Alternatively, non-activated particles are guided along a heated filament so that these are activated and are then combined with a gaseous phase or an aerosol comprising a plurality of precursor compounds, so that the precursor compounds are thereby converted into reactive compounds. The reactive compounds formed according to at least one of the two aforementioned steps are guided onto a substrate that is exposed to atmospheric pressure, so that a layer is deposited on the substrate or its surface is modified.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: August 12, 2008
    Assignee: Fraunhofer Gesellschaft Zur Forderung Der Angewandten Forschung E.V.
    Inventors: Stefan Dieckhoff, Ralph Wilken
  • Publication number: 20060127574
    Abstract: In a process according to the invention and an apparatus according to the invention for the coating or modification of a surface a flow of a first gaseous phase or of a first aerosol comprising one or more precursor compounds is guided along a heated filament so that the precursor compounds are converted into reactive compounds. Alternatively, non-activated particles are guided along a heated filament so that these are activated and are then combined with a gaseous phase or an aerosol comprising a plurality of precursor compounds, so that the precursor compounds are thereby converted into reactive compounds. The reactive compounds formed according to at least one of the two aforementioned steps are guided onto a substrate that is exposed to atmospheric pressure, so that a layer is deposited on the substrate or its surface is modified.
    Type: Application
    Filed: February 1, 2006
    Publication date: June 15, 2006
    Inventors: Stefan Dieckhoff, Ralph Wilken
  • Patent number: 5273802
    Abstract: The present invention relates to novel orthopedic casting materials having superior layer to layer lamination, and methods for preparing the same. The orthopedic casting materials comprise a resin-coated scrim having a plurality of projections along at least one surface thereof. Preferably, each projection comprises a bundle of at least about 8 filaments, and the scrim has from about 75 to about 1500 projections per gram of scrim. The projections serve to mechanically interact with adjacent layers of the material, thereby significantly enhancing the lamination properties of the resultant material and resisting delamination once the material has cured.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: December 28, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Matthew T. Scholz, Ralph A. Wilkens, Robert L. Assell, Charles E. Alexson