Patents by Inventor Yeon-Hak Lee

Yeon-Hak 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).

  • Publication number: 20240061235
    Abstract: A laser crystallization apparatus includes a plurality of laser generators which generate a plurality of laser beams, a plurality of attenuators which adjust energy intensity of the plurality of laser generators, and an optical module which overlap outputs of the plurality of attenuators to output a line beam. A first attenuator of the plurality of attenuators attenuates the energy intensity of the corresponding laser beam, and a second attenuator of the plurality of attenuators maintains the energy intensity of the corresponding laser beam.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: Dong Eon LIM, Jeong Un GO, Hyun Jin KIM, Hoon Chul RYOO, Yeong Jin SEOL, Gil Yong ON, Yeon Hak LEE, Hye Ji CHO
  • Patent number: 11835708
    Abstract: A laser crystallization apparatus includes a plurality of laser generators which generate a plurality of laser beams, a plurality of attenuators which adjust energy intensity of the plurality of laser generators, and an optical module which overlap outputs of the plurality of attenuators to output a line beam. A first attenuator of the plurality of attenuators attenuates the energy intensity of the corresponding laser beam, and a second attenuator of the plurality of attenuators maintains the energy intensity of the corresponding laser beam.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Eon Lim, Jeong Un Go, Hyun Jin Kim, Hoon Chul Ryoo, Yeong Jin Seol, Gil Yong On, Yeon Hak Lee, Hye Ji Cho
  • Publication number: 20210341727
    Abstract: A laser crystallization apparatus includes a plurality of laser generators which generate a plurality of laser beams, a plurality of attenuators which adjust energy intensity of the plurality of laser generators, and an optical module which overlap outputs of the plurality of attenuators to output a line beam. A first attenuator of the plurality of attenuators attenuates the energy intensity of the corresponding laser beam, and a second attenuator of the plurality of attenuators maintains the energy intensity of the corresponding laser beam.
    Type: Application
    Filed: April 28, 2021
    Publication date: November 4, 2021
    Inventors: Dong Eon LIM, Jeong Un GO, Hyun Jin KIM, Hoon Chul RYOO, Yeong Jin SEOL, Gil Yong ON, Yeon Hak LEE, Hye Ji CHO
  • Patent number: 5915805
    Abstract: A refrigerator includes a main body, a door hinged to the main body, a gasket sealingly disposed between the main body and the door when the door is closed, and a handle assembly mounted on the door for enabling a user to open the door. The handle assembly includes an actuator which is movable relative to the door in response to being pulled by the user, and an operating member movable relative to the actuator. The operating member is operably connected to the actuator to be moved thereby into contact with the body for creating a force tending to separate the gasket from the body.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: June 29, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yeon-Hak Lee