Patents by Inventor Do Ryun LEE

Do Ryun LEE 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 magnetic domain refinement of oriented electrical steel plate
    Patent number: 11072838
    Abstract: To optimize equipment and processes to enhance magnetic domain refinement efficiency and to enhance workability to improve processing capability, a method of refining a magnetic domain of a grain-oriented electrical steel plate includes zigzag controlling for transferring the steel plate without being inclined in right and left directions along a production line center, steel plate support roll position adjusting for controlling a position of the steel plate in up and down directions while supporting the steel plate, laser beam irradiating for irradiating a laser beam to a surface of the steel plate to melt the steel plate to form a groove in the surface of the steel plate, and removing for absorbing and removing radiant heat due to reflection of the laser beam irradiated to the surface of the steel plate during the laser beam irradiating.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: July 27, 2021
    Assignee: POSCO
    Inventors: Seung Ho Lim, Do Ryun Lee, Jin Ho Kim, Myung Sik Chun, Gyoo Taek Lee, Seong Cheol Hong
  • METHOD AND DEVICE FOR MAGNETIC DOMAIN REFINEMENT OF ORIENTED ELECTRICAL STEEL PLATE
    Publication number: 20190032167
    Abstract: To optimize equipment and processes to enhance magnetic domain refinement efficiency and to enhance workability to improve processing capability, a method of refining a magnetic domain of a grain-oriented electrical steel plate includes zigzag controlling for transferring the steel plate without being inclined in right and left directions along a production line center, steel plate support roll position adjusting for controlling a position of the steel plate in up and down directions while supporting the steel plate, laser beam irradiating for irradiating a laser beam to a surface of the steel plate to melt the steel plate to form a groove in the surface of the steel plate, and removing for absorbing and removing radiant heat due to reflection of the laser beam irradiated to the surface of the steel plate during the laser beam irradiating.
    Type: Application
    Filed: December 26, 2016
    Publication date: January 31, 2019
    Inventors: Seung Ho LIM, Do Ryun LEE, Jin Ho KIM, Myung Sik CHUN, Gyoo Taek LEE, Seong Cheol HONG