Patents by Inventor LEEGU HAN

LEEGU HAN 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: 12007333
    Abstract: A system for inspecting thin glass includes: a housing including a body and a cover; a first shuttle which fixes an edge portion of the thin glass and reciprocates in a first axis direction; a first inspection part disposed on the body and which measures a position of a defect formed in the thin glass by taking a picture of the thin glass; a transport shuttle which separates the thin glass from the first shuttle, a second shuttle which separates the thin glass from the transport shuttle, fixes the thin glass, and reciprocates the upper surface of the body; and a second inspection part disposed on the body and spaced apart from the first inspection part and which inspects the position of the defect by taking an enlarged picture of the position of the defect. The first shuttle tensions and fixes the thin glass.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: June 11, 2024
    Assignees: SAMSUNG DISPLAY CO., LTD., DIGITAL IMAGING TECHNOLOGY
    Inventors: Janghoon Lee, Jin Woo Kim, Cheol Hyun Cho, Jayoung Cho, Leegu Han
  • Publication number: 20240181767
    Abstract: A window manufacturing apparatus includes a transporting table on which a target substrate is to be mounted, the transporting table including a first portion and a second portion having a greater thickness than the first portion, a plurality of suctioning ports on a suctioning table, the plurality of suctioning ports being configured to suction the target substrate, and an attachment device configured to attach a protective film to the target substrate suctioned to the suctioning table. In a state in which the target substrate mounted on the transporting table is suctioned to the suctioning table, the plurality of suctioning ports overlap the second portion of the transporting table and do not overlap the first portion of the transporting table in a plan view.
    Type: Application
    Filed: February 12, 2024
    Publication date: June 6, 2024
    Inventors: KITAEK KIM, JUNGSUK KOO, YONGWOON BYUN, LEEGU HAN
  • Patent number: 11897243
    Abstract: A window manufacturing apparatus includes a transporting table on which a target substrate is to be mounted, the transporting table including a first portion and a second portion having a greater thickness than the first portion, a plurality of suctioning ports on a suctioning table, the plurality of suctioning ports being configured to suction the target substrate, and an attachment device configured to attach a protective film to the target substrate suctioned to the suctioning table. In a state in which the target substrate mounted on the transporting table is suctioned to the suctioning table, the plurality of suctioning ports overlap the second portion of the transporting table and do not overlap the first portion of the transporting table in a plan view.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: February 13, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kitaek Kim, Jungsuk Koo, Yongwoon Byun, Leegu Han
  • Publication number: 20240027363
    Abstract: A glass inspection equipment includes a first transfer rail extending in a first direction, where a glass including first sides and second sides extending in a direction intersecting the first sides reciprocates in the first direction, a rotation part on the first transfer rail to rotate the glass, an edge inspection part on the first transfer rail to inspect the first and second sides of the glass, and a surface inspection part which inspects a surface of the glass, the edge inspection part inspects the first sides when the glass with the first sides arranged parallel to the first direction is transferred under the edge inspection part, and the edge inspection part inspects the second sides when the glass transferred through the edge inspection part is rotated by the rotation part and the glass with the second sides parallel to the first direction is transferred under the edge inspection part.
    Type: Application
    Filed: March 10, 2023
    Publication date: January 25, 2024
    Inventors: YUNKU KANG, KITAEK KIM, SUNGMIN PARK, JANGHOON LEE, LEEGU HAN
  • Publication number: 20230042179
    Abstract: A system for inspecting thin glass includes: a housing including a body and a cover; a first shuttle which fixes an edge portion of the thin glass and reciprocates in a first axis direction; a first inspection part disposed on the body and which measures a position of a defect formed in the thin glass by taking a picture of the thin glass; a transport shuttle which separates the thin glass from the first shuttle, a second shuttle which separates the thin glass from the transport shuttle, fixes the thin glass, and reciprocates the upper surface of the body; and a second inspection part disposed on the body and spaced apart from the first inspection part and which inspects the position of the defect by taking an enlarged picture of the position of the defect. The first shuttle tensions and fixes the thin glass.
    Type: Application
    Filed: April 26, 2022
    Publication date: February 9, 2023
    Inventors: JANGHOON LEE, Jin Woo Kim, Cheol Hyun Cho, JAYOUNG CHO, LEEGU HAN
  • Publication number: 20220371315
    Abstract: A window transfer method and a window manufacturing method using a window transfer method are provided. A window transfer method includes preparing a stage, transferring the stage over a loading part on which a window layer is loaded, transferring the stage to be adjacent to an upper surface of the window layer and to allow a plurality of protrusion parts attached to side surfaces of the stage to press a slip sheet layer arranged under the window layer and exposed outside the window layer, and suctioning the window layer to a lower surface of the stage to separate the window layer from the slip sheet layer.
    Type: Application
    Filed: April 1, 2022
    Publication date: November 24, 2022
    Inventors: SEUNGJUN LEE, HANGGYUN PARK, LEEGU HAN
  • Publication number: 20220281216
    Abstract: A window manufacturing apparatus includes a transporting table on which a target substrate is to be mounted, the transporting table including a first portion and a second portion having a greater thickness than the first portion, a plurality of suctioning ports on a suctioning table, the plurality of suctioning ports being configured to suction the target substrate, and an attachment device configured to attach a protective film to the target substrate suctioned to the suctioning table. In a state in which the target substrate mounted on the transporting table is suctioned to the suctioning table, the plurality of suctioning ports overlap the second portion of the transporting table and do not overlap the first portion of the transporting table in a plan view.
    Type: Application
    Filed: October 18, 2021
    Publication date: September 8, 2022
    Inventors: KITAEK KIM, JUNGSUK KOO, YONGWOON BYUN, LEEGU HAN