Patents by Inventor Tomasz P. Cieszy?ski

Tomasz P. Cieszy?ski 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 for forming a three-dimensional article by fusion of a powdered medium in a powder bed
    Patent number: 11724457
    Abstract: Methods and apparatus for forming a three-dimensional article in which a powdered medium is distributed in a powder bed, heated to a temperature below its melting point, and fused by means of a laser beam projected in the form of an image of a cross section of the three-dimensional article. The image of the cross-sectional layer is created by spatial light modulation of the laser beam using an LCoS display. During the fabrication process, characteristics of the image of the cross-sectional layer are controlled through monitoring of the projection of a holographic representation of the image using one or more imaging devices.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: August 15, 2023
    Inventors: Tomasz P. Cieszyński, Jakub Graczyk, Avi N. Reichental
  • Method and apparatus for forming a three-dimensional article by fusion of a powdered medium in a powder bed
    Patent number: 11077618
    Abstract: Methods and apparatus for forming a three-dimensional article in which a powdered medium is distributed in a powder bed, heated to a temperature below its melting point, and fused by means of a laser beam projected in the form of an image of a cross section of the three-dimensional article. The image of the cross-sectional layer is created by spatial light modulation of the laser beam using an LCoS display. During the fabrication process, characteristics of the image of the cross-sectional layer are controlled through monitoring of the projection of a holographic representation of the image using one or more imaging devices.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: August 3, 2021
    Assignee: NXT FACTORY INC.
    Inventors: Tomasz P. Cieszyński, Jakub Graczyk, Avi N. Reichental