Patents by Inventor Matthias Koitzsch

Matthias Koitzsch 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).

  • Method and device for separating a flat workpiece into a plurality of sections
    Patent number: 10654133
    Abstract: A method of separating a workpiece into a plurality of sections includes generating one or a plurality of lines of modified material along one or a plurality of predefined separating lines in the workpiece in a first step by local material processing using a laser beam through a surface of the workpiece, which results in a reduction of breaking stress of the workpiece along the separating lines, and dividing, in a second step, the workpiece into the sections along the separating lines by thermal laser beam separation, wherein the one or the plurality of lines are generated completely or at least in portions at a distance from the surface in the workpiece.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: May 19, 2020
    Assignee: 3D-Micromac AG
    Inventors: Matthias Koitzsch, Dirk Lewke, Alexander Tobisch, Hans-Ulrich Zühlke, Frank Allenstein
  • METHOD AND DEVICE FOR SEPARATING A FLAT WORKPIECE INTO A PLURALITY OF SECTIONS
    Publication number: 20160158880
    Abstract: A method of separating a workpiece into a plurality of sections includes generating one or a plurality of lines of modified material along one or a plurality of predefined separating lines in the workpiece in a first step by local material processing using a laser beam through a surface of the workpiece, which results in a reduction of breaking stress of the workpiece along the separating lines, and dividing, in a second step, the workpiece into the sections along the separating lines by thermal laser beam separation, wherein the one or the plurality of lines are generated completely or at least in portions at a distance from the surface in the workpiece.
    Type: Application
    Filed: July 1, 2014
    Publication date: June 9, 2016
    Inventors: Matthias Koitzsch, Dirk Lewke, Alexander Tobisch, Hans-Ulrich Zühlke, Frank Allenstein