Patents by Inventor Frank Freudenberg

Frank Freudenberg 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: 20230382118
    Abstract: Provided is an evacuation device for an inkjet printing device that is designed to guide a printed recording medium along a transport direction through a constriction with an opposite gas flow, in order to be able to efficiently and comprehensively evacuate ink vapor before the constriction, in terms of the transport direction.
    Type: Application
    Filed: April 7, 2022
    Publication date: November 30, 2023
    Inventors: Albrecht Gerstner, Frank Freudenberg, Christian Kürmeier
  • Patent number: 11427024
    Abstract: Thermal energy is supplied to a fluid mixture on a substrate that has a first component, for example water, and a second component, for example cosolvent, such that the proportion of the second component in the fluid mixture is increased at relatively high temperatures of the fluid mixture. It may thus be reliably produced that an optimally small quantity of the second component is located on the surface of the substrate following the drying process.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: August 30, 2022
    Assignee: Canon Production Printing Holding B.V.
    Inventor: Frank Freudenberg
  • Publication number: 20200282758
    Abstract: Thermal energy is supplied to a fluid mixture on a substrate that has a first component, for example water, and a second component, for example cosolvent, such that the proportion of the second component in the fluid mixture is increased at relatively high temperatures of the fluid mixture. It may thus be reliably produced that an optimally small quantity of the second component is located on the surface of the substrate following the drying process.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 10, 2020
    Applicant: Canon Production Printing Holding B.V.
    Inventor: Frank Freudenberg
  • Patent number: 8204393
    Abstract: In a method for electrographic printing of color images on a final image carrier, charge images of images to be printed are generated on a charge image carrier and are developed into toner images with toner, the toner images being transferred onto an intermediate carrier from which they are transfer-printed onto the final image carrier. The charge images for individual colors of the color image are generated in succession on the charge image carrier and are developed into individual color toner images with color toner. The individual color toner images are transferred onto the intermediate carrier and are there collected atop of one another in a color collection cycle to form a complete color toner image. Before transfer printing of the complete color toner image on the final image carrier, the final image carrier is pivoted onto the intermediate carrier, and after the transfer printing, the final image carrier is pivoted away from the intermediate carrier.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: June 19, 2012
    Assignee: Oce Printing Systems GmbH
    Inventors: Hans Winter, Frank Freudenberg, Stefan Scherdel
  • Patent number: 8139965
    Abstract: In a method to determine a curve of revolution speed of a continuous belt-shaped image substrate, at least two color separations are generated on the image substrate and transferred from the image substrate onto a substrate material to generate a print image. A first offset in a transport direction of the substrate material between the at least two color separations of the print image is determined at a first point. At least one second offset in the transport direction is determined between the at least two color separations of the print image at least one second point. The first point and the second point have at least one interval relative to one another in the transport direction. The curve of the revolution speed of the image substrate is determined with aid of the first offset and the second offset.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: March 20, 2012
    Assignee: Oce Printing Systems GmbH
    Inventor: Frank Freudenberg
  • Publication number: 20090202262
    Abstract: In a method to determine a curve of revolution speed of a continuous belt-shaped image substrate, at least two color separations are generated on the image substrate and transferred from the image substrate onto a substrate material to generate a print image. A first offset in a transport direction of the substrate material between the at least two color separations of the print image is determined at a first point. At least one second offset in the transport direction is determined between the at least two color separations of the print image at least one second point. The first point and the second point have at least one interval relative to one another in the transport direction. The curve of the revolution speed of the image substrate is determined with aid of the first offset and the second offset.
    Type: Application
    Filed: July 16, 2007
    Publication date: August 13, 2009
    Inventor: Frank Freudenberg
  • Patent number: 7483650
    Abstract: In a method and a system for generation of print images on a carrier material, an actual speed difference is generated in a transfer printing region between an image carrier and the carrier material. A deviation of the actual speed difference from a desired speed difference is determined with aid of a measurement arrangement.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: January 27, 2009
    Assignee: OCE Printing Systems GmbH
    Inventors: Frank Freudenberg, Hans Winter
  • Patent number: 7274901
    Abstract: The invention relates to a method and an arrangement for generating positionally-accurate print images on a carrier material with the aid of an electrophotographic printer or copier. A positioning error of the position of the carrier material with respect to a toner image present on the toner image carrier is determined, which error occurs during the contacting of a carrier material to be printed. Dependent on the positioning error determined, for every subsequent contacting of the carrier material to be printed with the toner image carrier, the position of the carrier material with respect to the toner image is adapted before the contacting such that the carrier material and the toner image are arranged with respect to one another substantially free of positioning errors.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: September 25, 2007
    Assignee: Oce Printing Systems GmbH
    Inventors: Hans Winter, Johann Bartosch, Holger Hofmann, Heinrich Lay, Günther Gassner, Frank Freudenberg
  • Publication number: 20070134022
    Abstract: In a method and a system for generation of print images on a carrier material, an actual speed difference is generated in a transfer printing region between an image carrier and the carrier material. A deviation of the actual speed difference from a desired speed difference is determined with aid of a measurement arrangement.
    Type: Application
    Filed: December 7, 2006
    Publication date: June 14, 2007
    Inventors: Frank Freudenberg, Hans Winter
  • Publication number: 20050089350
    Abstract: The invention relates to a method and an arrangement for generating positionally-accurate print images on a carrier material with the aid of an electrophotographic printer or copier. A positioning error of the position of the carrier material with respect to a toner image present on the toner image carrier is determined, which error occurs during the contacting of a carrier material to be printed. Dependent on the positioning error determined, for every subsequent contacting of the carrier material to be printed with the toner image carrier, the position of the carrier material with respect to the toner image is adapted before the contacting such that the carrier material and the toner image are arranged with respect to one another substantially free of positioning errors.
    Type: Application
    Filed: August 23, 2004
    Publication date: April 28, 2005
    Inventors: Hans Winter, Johann Bartosch, Holger Hofmann, Heinrich Lay, Gunther Gassner, Frank Freudenberg