Patents by Inventor Dong Woon Lee

Dong Woon 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).

  • PREALLOY POWDER FOR POWDER METALLURGY, A SINTERED PART USING THE SAME, AND A MANUFACTURING METHOD THEREOF
    Publication number: 20250018469
    Abstract: A prealloy powder for powder metallurgy, a sintered part using the same, and a manufacturing method thereof, which is configured to prevent deterioration of core hardness along with surface hardening while maintaining excellent tensile strength by adjusting an alloy composition so that a bainite phase is formed. The sintered part, which is manufactured by powder metallurgy, includes 1.05 to 1.55 wt % of Cr, 0.3 to 0.5 wt % of Mo, 0.5 to 0.7 wt % of C, and a remaining of Fe and other unavoidable impurities.
    Type: Application
    Filed: October 30, 2023
    Publication date: January 16, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA SINTERED METAL CO., LTD.
    Inventors: Hak Soo Kim, Go Woon Jung, Jin Hyeon Lee, Jung Hyuk Kim, Joo Sung Park, Dong Kuk Jeong
  • Window, method of manufacturing window, and display device including window
    Patent number: 11926759
    Abstract: A window includes a base layer and a first coating layer. The first coating layer is disposed on a first surface of the base layer. The first coating layer is a single layer. The first coating layer includes a siloxane-based compound. The siloxane-based compound includes fluorine and silica.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: March 12, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Nyoung Heo, Kilsung Lee, Hoseok Sohn, Yongseok Lee, Dong Woon Lee, Yusik Jeon, Beomgyu Choi
  • WINDOW AND DISPLAY DEVICE COMPRISING THE SAME
    Publication number: 20230085199
    Abstract: A window for a display device that includes: a base substrate; a first coating layer disposed on a first surface of the base substrate; and a second coating layer disposed on a second surface that overlaps the first surface of the base substrate, wherein the base substrate further includes a vertical surface perpendicular to the first surface and the second surface, and the first coating layer overlaps the vertical surface. The impact resistance of the window is improved through the first coating layer covering the rear surface and the vertical surface of the base substrate.
    Type: Application
    Filed: November 13, 2022
    Publication date: March 16, 2023
    Inventors: Jinnyoung HEO, Kilsung LEE, Hoseok SOHN, Yongseok LEE, Dong Woon LEE, Yusik JEON, Beomgyu CHOI
  • Window and display device comprising the same
    Patent number: 11500422
    Abstract: A window for a display device that includes: a base substrate; a first coating layer disposed on a first surface of the base substrate; and a second coating layer disposed on a second surface that overlaps the first surface of the base substrate, wherein the base substrate further includes a vertical surface perpendicular to the first surface and the second surface, and the first coating layer overlaps the vertical surface. The impact resistance of the window is improved through the first coating layer covering the rear surface and the vertical surface of the base substrate.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: November 15, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jinnyoung Heo, Kilsung Lee, Hoseok Sohn, Yongseok Lee, Dong Woon Lee, Yusik Jeon, Beomgyu Choi
  • WINDOW, METHOD OF MANUFACTURING WINDOW, AND DISPLAY DEVICE INCLUDING WINDOW
    Publication number: 20200208013
    Abstract: A window includes a base layer and a first coating layer. The first coating layer is disposed on a first surface of the base layer. The first coating layer is a single layer. The first coating layer includes a siloxane-based compound. The siloxane-based compound includes fluorine and silica.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 2, 2020
    Inventors: Jin Nyoung HEO, Kilsung Lee, Hoseok Sohn, Yongseok Lee, Dong Woon Lee, Yusik Jeon, Beomgyu Choi
  • WINDOW AND DISPLAY DEVICE COMPRISING THE SAME
    Publication number: 20190377386
    Abstract: A window for a display device that includes: a base substrate; a first coating layer disposed on a first surface of the base substrate; and a second coating layer disposed on a second surface that overlaps the first surface of the base substrate, wherein the base substrate further includes a vertical surface perpendicular to the first surface and the second surface, and the first coating layer overlaps the vertical surface. The impact resistance of the window is improved through the first coating layer covering the rear surface and the vertical surface of the base substrate.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 12, 2019
    Inventors: Jinnyoung HEO, Kilsung Lee, Hoseok Sohn, Yongseok Lee, Dong Woon Lee, Yusik Jeon, Beomgyu Choi