Patents by Inventor Jarkko Piirto

Jarkko Piirto 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).

  • Lighthouse scanner with a rotating mirror and a circular ring target
    Patent number: 10927447
    Abstract: The present invention introduces a scanning arrangement and a method suitable for coating processes applying laser ablation. The arrangement is suited to prolonged, industrial processes. The arrangement comprises a target, which has an annular form. The laser beam direction is controlled by a rotating mirror locating along the center axis of the annular target. The scanning line will rotate circularly along the inner target surface when the mirror rotates. The focal point of the laser beams may be arranged to locate on the inner target surface to ensure a constant spot size. A ring-formed, a cylinder-shaped or a cut conical-shaped target may be used. The inner surface of the target may thus be tapered in order to control the release direction of the ablated material towards a substrate to be coated.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 23, 2021
    Assignee: Pulsedeon Oy
    Inventors: Ville Kekkonen, Jarkko Piirto, Jari Liimatainen, Fergus Clarke
  • Lighthouse scanner with a rotating mirror and a circular ring target
    Publication number: 20170350000
    Abstract: The present invention introduces a scanning arrangement and a method suitable for coating processes applying laser ablation. The arrangement is suited to prolonged, industrial processes. The arrangement comprises a target, which has an annular form. The laser beam direction is controlled by a rotating mirror locating along the center axis of the annular target. The scanning line will rotate circularly along the inner target surface when the mirror rotates. The focal point of the laser beams may be arranged to locate on the inner target surface to ensure a constant spot size. A ring-formed, a cylinder-shaped or a cut conical-shaped target may be used. The inner surface of the target may thus be tapered in order to control the release direction of the ablated material towards a substrate to be coated.
    Type: Application
    Filed: December 16, 2015
    Publication date: December 7, 2017
    Applicant: Picodeon Ltd Oy
    Inventors: Ville Kekkonen, Jarkko Piirto, Jari Liimatainen, Fergus Clarke