Patents by Inventor Hyoung-Kuk PARK

Hyoung-Kuk PARK 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: 20250062142
    Abstract: This present disclosure discloses a substrate heat-treating apparatus including a process chamber in which a flat substrate to be heat-treated is placed and a beam irradiating module having a plurality of VCSEL devices configured to irradiate a laser beam to the flat substrate, and the beam irradiation module is configured such that a supply current is controlled to allow outputs of the VCSEL devices to become the same.
    Type: Application
    Filed: December 28, 2022
    Publication date: February 20, 2025
    Inventors: Hyoung June Kim, Byung Kuk Kim, Wang Jun Park, Tae Hyeong Kim
  • Publication number: 20240027399
    Abstract: The present invention provides a correction steel sheet for quickly and accurately correcting the sensitivity of a sensor during hardness measurement in which a sudden signal change does not occur. In one embodiment, the correction steel sheet is a steel sheet having a long side and a short side and is used for correcting a sensor and includes a first part having a first hardness and a second part having a second hardness greater than the first hardness. The first part and the second part are arranged at different positions in a short side direction, and have phases changed from austenite grains of the same composition.
    Type: Application
    Filed: December 10, 2021
    Publication date: January 25, 2024
    Applicant: POSCO Co., Ltd
    Inventors: Ju-Seung Lee, Seong-Ung Koh, Hyoung-Kuk Park
  • Publication number: 20230160071
    Abstract: A process control system according to one embodiment of the present invention comprises: a first system for generating thickness information about an internal defect layer included in a carbon steel product; and a second system which receives the thickness information about the internal defect layer from the first system through a network, and which controls an etching process for removing at least a part of the internal defect layer from the carbon steel product by using the thickness information about the internal defect layer, wherein the first system provides the second system with a calculation module necessary for the second system to control the etching process, and the second system provides the first system with the information necessary for the first system to update the calculation module.
    Type: Application
    Filed: February 18, 2021
    Publication date: May 25, 2023
    Applicant: POSCO
    Inventors: Kyong-Su Park, Jung-Hyeung Lee, Chon-Kue Kim, Hyoung-Kuk Park, Deuk-Jung Kim
  • Patent number: 10704151
    Abstract: A pickling apparatus includes a plurality of pickling tanks in which a scale of a steel plate is removed while the steel plate is advanced and sequentially dipped; an intermediate spraying unit, disposed between a pickling tank at the front end and a pickling tank at the rear end, for spraying a pickling solution onto the steel plate; and a pickling solution supply means configured to provide a pickling solution of a concentration used in the pickling tank at the rear end to the intermediate spraying unit, wherein a wringer roll disposed between the plurality of pickling tanks is removed.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: July 7, 2020
    Assignee: POSCO
    Inventor: Hyoung-Kuk Park
  • Publication number: 20180371626
    Abstract: A pickling apparatus includes a plurality of pickling tanks in which a scale of a steel plate is removed while the steel plate is advanced and sequentially dipped; an intermediate spraying unit, disposed between a pickling tank at the front end and a pickling tank at the rear end, for spraying a pickling solution onto the steel plate; and a pickling solution supply means configured to provide a pickling solution of a concentration used in the pickling tank at the rear end to the intermediate spraying unit, wherein a wringer roll disposed between the plurality of pickling tanks is removed.
    Type: Application
    Filed: July 28, 2016
    Publication date: December 27, 2018
    Applicant: POSCO
    Inventor: Hyoung-Kuk PARK