Patents by Inventor Oho-Cheal Kwon

Oho-Cheal Kwon 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).

  • Patent number: 12330191
    Abstract: An alien substance removing apparatus according to one embodiment of the present invention may comprise: a hood unit provided adjacent to an electrical steel sheet and for collecting an alien substance generated in the electrical steel sheet by laser irradiation; and a scraping unit coupled to the hood unit and scraping and removing the alien substance attached to one surface of the hood unit facing the electrical steel sheet.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: June 17, 2025
    Assignee: POSCO CO., LTD
    Inventors: Seong-Cheol Hong, Ki-Young Min, Se-Min Park, Dong-Geun Kim, Oho-Cheal Kwon, Chang-Ho Kim, Sang-Uk Ha
  • Patent number: 12239931
    Abstract: A foreign substance capturing apparatus according to an embodiment of the present invention may comprise: a capturing body unit having an inlet port for introducing the air including magnetic foreign substances and an outlet port for discharging the air from which the magnetic foreign substances have been removed; and a magnetic isolation unit connected to the capturing body unit, including a magnetic member for isolating, by an attractive force, the magnetic foreign substances from the air flowing in the capturing body unit, and provided with a nonmagnetic member surrounding the magnetic member.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: March 4, 2025
    Assignee: POSCO
    Inventors: Seong-Cheol Hong, Ki-Young Min, Dong-Geun Kim, Oho-Cheal Kwon, Chang-Ho Kim
  • Patent number: 12138709
    Abstract: A foreign substance collecting apparatus according to one embodiment of the present disclosure may comprise: a collection body unit formed with a suction port through which air including foreign substances flows in and a discharge port through which air removed of the foreign substances is discharged; and a mixing unit provided inside the collection body unit and disposed on a flow passage of the air, and forming a vortex in washing water contained therein by inducing a rotary flow of the air.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: November 12, 2024
    Assignee: POSCO CO., LTD
    Inventors: Seong-Cheol Hong, Ki-Young Min, Se-Min Park, Dong-Geun Kim, Chang-Ho Kim, Jung-Moon Kang, Oho-Cheal Kwon
  • Publication number: 20230027665
    Abstract: A foreign substance capturing apparatus according to an embodiment of the present invention may comprise: a capturing body unit having an inlet port for introducing the air including magnetic foreign substances and an outlet port for discharging the air from which the magnetic foreign substances have been removed; and a magnetic isolation unit connected to the capturing body unit, including a magnetic member for isolating, by an attractive force, the magnetic foreign substances from the air flowing in the capturing body unit, and provided with a non-magnetic member surrounding the magnetic member.
    Type: Application
    Filed: November 17, 2020
    Publication date: January 26, 2023
    Applicant: POSCO
    Inventors: Seong-Cheol Hong, Ki-Young Min, Dong-Geun Kim, Oho-Cheal Kwon, Chang-Ho Kim
  • Publication number: 20220048136
    Abstract: An alien substance removing apparatus according to one embodiment of the present invention may comprise: a hood unit provided adjacent to an electrical steel sheet and for collecting an alien substance generated in the electrical steel sheet by laser irradiation; and a scraping unit coupled to the hood unit and scraping and removing the alien substance attached to one surface of the hood unit facing the electrical steel sheet.
    Type: Application
    Filed: December 11, 2019
    Publication date: February 17, 2022
    Inventors: Seong-Cheol HONG, Ki-Young MIN, Se-Min PARK, Dong-Geun KIM, Oho-Cheal KWON, Chang-Ho KIM, Sang-Uk HA
  • Publication number: 20220040790
    Abstract: A foreign substance collecting apparatus according to one embodiment of the present disclosure may comprise: a collection body unit formed with a suction port through which air including foreign substances flows in and a discharge port through which air removed of the foreign substances is discharged; and a mixing unit provided inside the collection body unit and disposed on a flow passage of the air, and forming a vortex in washing water contained therein by inducing a rotary flow of the air.
    Type: Application
    Filed: September 18, 2019
    Publication date: February 10, 2022
    Inventors: Seong-Cheol HONG, Ki-Young MIN, Se-Min PARK, Dong-Geun KIM, Chang-Ho KIM, Jung-Moon KANG, Oho-Cheal KWON
  • Publication number: 20210317545
    Abstract: An embodiment of the present invention provides a grain-oriented electrical steel sheet, including: a linear groove formed in a direction crossing a rolling direction on one surface or both surfaces of an electrical steel sheet; and a linear thermal shock portion formed in the direction crossing the rolling direction on one surface or both surfaces of the electrical steel sheet. The groove is formed in plural along the rolling direction, a distance D2 between the groove and the thermal shock portion is 0.2 to 0.5 times a distance D1 between the grooves, and a distance D3 between the thermal shock portions is 0.2 to 3.0 times the distance D1 between the grooves.
    Type: Application
    Filed: May 23, 2019
    Publication date: October 14, 2021
    Inventors: Oh-Yeoul Kwon, Jong-Tae Park, Woo-Sin Kim, Chang-Ho Kim, Hyun-Chul Park, Won-Gul Lee, Oho-Cheal Kwon