Patents by Inventor Roland Mayerhofer

Roland Mayerhofer 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: 20170186629
    Abstract: A coating-removal apparatus may include a source positioned on a mounting plate, and operable to emit a laser beam at a first path, where the mounting plate is configured to receive an edge of a photovoltaic module in a designated region substantially proximate to the mounting plate, such that the first path intersects the designated region, and where the mounting plate is further configured to reposition the source to create an additional path that intersects with the designated region, where the additional path is distinct from the first path.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 29, 2017
    Applicant: First Solar, Inc.
    Inventors: Michael Catalano, Stephen P. Murphy, Roland Mayerhofer
  • Publication number: 20160343571
    Abstract: A method for removing dielectric layers from semiconductor components by way of a laser beam. The dielectric layer is irradiated with a laser beam which has, upon incidence on the dielectric layer, a substantially homogeneous power density over the laser beam cross-section.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 24, 2016
    Inventors: ROLAND MAYERHOFER, RICHARD HENDEL, WENJIE ZHU
  • Publication number: 20160318790
    Abstract: A method of laser processing a heat processed transparent material is disclosed wherein the heat processed transparent material includes a top compressive layer, a bottom compressive layer, and a tensile layer between the top compressive layer and the bottom compressive layer. A laser beam includes a burst of laser pulses or a single laser pulse which is externally focussed relative to the heat processed transparent material to form a beam waist at a first location external to the heat processed transparent material avoiding formation of a plasma channel external to the heat processed transparent material. The laser pulses or pulse are focused such that a sufficient energy density is maintained within the bottom compressive layer of the heat processed transparent material to form continuous laser filaments in the top and bottom compressive layers therein without causing optical breakdown. The laser filaments do not extend into the tensile layer.
    Type: Application
    Filed: April 30, 2015
    Publication date: November 3, 2016
    Applicant: ROFIN-SINAR TECHNOLOGIES INC.
    Inventors: S. ABBAS HOSSEINI, ROLAND MAYERHOFER
  • Publication number: 20150108101
    Abstract: A method of marking components of an aircraft engine, especially turbine blades of a titanium aluminide intermetallic compound. A solid state laser generates a pulsed laser beam with a pulse width of less than 10 ps and the component is marked with the pulsed laser beam.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Inventors: KARL-HERMANN RICHTER, ROLAND MAYERHOFER, LUDGER MUELLERS
  • Publication number: 20140103580
    Abstract: A coating-removal apparatus may include a source positioned on a mounting plate, and operable to emit a laser beam at a first path, where the mounting plate is configured to receive an edge of a photovoltaic module in a designated region substantially proximate to the mounting plate, such that the first path intersects the designated region, and where the mounting plate is further configured to reposition the source to create an additional path that intersects with the designated region, where the additional path is distinct from the first path.
    Type: Application
    Filed: December 26, 2013
    Publication date: April 17, 2014
    Applicant: First Solar, Inc.
    Inventors: Michael Catalano, Stephen P. Murphy, Roland Mayerhofer
  • Publication number: 20130270744
    Abstract: A coating-removal apparatus may include a source positioned on a mounting plate, and operable to emit a laser beam at a first path, where the mounting plate is configured to receive an edge of a photovoltaic module in a designated region substantially proximate to the mounting plate, such that the first path intersects the designated region, and where the mounting plate is further configured to reposition the source to create an additional path that intersects with the designated region, where the additional path is distinct from the first path.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 17, 2013
    Applicant: First Solar, Inc.
    Inventors: Michael Catalano, Stephen P. Murphy, Roland Mayerhofer
  • Publication number: 20110162715
    Abstract: A coating-removal apparatus may include a source positioned on a mounting plate, and operable to emit a laser beam at a first path, where the mounting plate is configured to receive an edge of a photovoltaic module in a designated region substantially proximate to the mounting plate, such that the first path intersects the designated region, and where the mounting plate is further configured to reposition the source to create an additional path that intersects with the designated region, where the additional path is distinct from the first path.
    Type: Application
    Filed: September 21, 2010
    Publication date: July 7, 2011
    Applicant: First Solar, Inc.
    Inventors: Michael Catalano, Stephen P. Murphy, Roland Mayerhofer
  • Publication number: 20110124147
    Abstract: In a method for separating silicon solar cells, a groove is introduced into a silicon wafer containing the silicon solar cells along a separating line in a front side of the silicon wafer adjacent to a p-n junction in the silicon wafer using a first laser beam. The groove has a depth reaching at least to the p-n junction and extends to a lateral edge of the silicon wafer. In a second work step, the silicon wafer is cut along the separating line starting at the lateral edge using a second laser beam directed into the groove. Wherein the melt arising during the cutting is driven out of the cutting kerf arising during the cutting using a cutting gas flowing at least approximately in the direction of the second laser beam.
    Type: Application
    Filed: February 4, 2011
    Publication date: May 26, 2011
    Applicant: ROFIN-BAASEL LASERTECH GMBH & CO. KG
    Inventor: ROLAND MAYERHOFER
  • Publication number: 20060254444
    Abstract: The invention relates to a method for producing a printing plate for intaglio printing. According to said method, a laser is used to create recesses and/or lines in a base body consisting of a brass alloy and/or having an outer layer consisting of a brass alloy.
    Type: Application
    Filed: June 18, 2004
    Publication date: November 16, 2006
    Applicant: OESTERREICHISCHE BANKNOTEN-UND SICHERHEITSDRUCK GM
    Inventors: Roland Mayerhofer, Harald Deinhammer