Patents by Inventor Jan Hendrik Holtz

Jan Hendrik Holtz 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: 11807027
    Abstract: The present disclosure provides an aluminium alloy strip for lithographic printing plate supports, which has a rolled-in surface topography on one strip surface. Further, a method is disclosed for manufacturing the aluminium alloy strip and a printing plate for lithographic printing, with a printing plate support made of aluminium alloy. The object of proposing an aluminium alloy strip for lithographic printing plate supports is that it provides a long service life in the printing process and is roughened with less charge support entry. This is achieved in that the surface of the aluminium alloy strip has a mean peak number measured perpendicular to the rolling direction of the aluminium alloy strip.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: November 7, 2023
    Assignee: Speira GmbH
    Inventors: Oliver Bauer, Gernot Nitzsche, Volkan Barisik, Vera Bartosinski, Jasmin Dahmen, Klaus Weichbrodt, Jan Hendrik Holtz
  • Publication number: 20230086926
    Abstract: The present disclosure provides an aluminium alloy strip for lithographic printing plate supports, which has a rolled-in surface topography on one strip surface. Further, a method is disclosed for manufacturing the aluminium alloy strip and a printing plate for lithographic printing, with a printing plate support made of aluminium alloy. The object of proposing an aluminium alloy strip for lithographic printing plate supports is that it provides a long service life in the printing process and is roughened with less charge support entry. This is achieved in that the surface of the aluminium alloy strip has a mean peak number measured perpendicular to the rolling direction of the aluminium alloy strip.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 23, 2023
    Applicant: Speira GmbH
    Inventors: Oliver Bauer, Gernot Nitzsche, Volkan Barisik, Vera Bartosinski, Jasmin Dahmen, Klaus Weichbrodt, Jan Hendrik Holtz
  • Patent number: 11110564
    Abstract: The object of providing a method for conditioning a working roll with which the material properties of a working roll can be set in a process-reliable and uniform manner is achieved by a method in which a roll and at least one pressure tool are rotated relative to each other, in which pressure is applied locally to the roll by means of the at least one pressure tool, comprising at least one pressure element, via the at least one pressure element, and in which a deep rolling process is carried out.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: September 7, 2021
    Assignee: Hydro Aluminium Rolled Products GmbH
    Inventors: Stephan Draese, Jan Hendrik Holtz
  • Publication number: 20170348822
    Abstract: The object of providing a method for conditioning a working roll with which the material properties of a working roll can be set in a process-reliable and uniform manner is achieved by a method in which a roll and at least one pressure tool are rotated relative to each other, in which pressure is applied locally to the roll by means of the at least one pressure tool, comprising at least one pressure element, via the at least one pressure element, and in which a deep rolling process is carried out.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 7, 2017
    Applicant: Hydro Aluminium Rolled Products GmbH
    Inventors: Stephan Draese, Jan Hendrik Holtz