Patents by Inventor Chang Gi Lee

Chang Gi 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).

  • Patent number: 12553237
    Abstract: Provided is an eco-friendly ceiling panel apparatus mountable on the ceiling of a building, and a method of manufacturing the same, the ceiling panel apparatus including a base substantially having a rectangular plate shape and made of a first material, and one or more reinforcing members substantially having a rod shape, made of a second material, and provided in the base to prevent sagging of the base, wherein the reinforcing members are disposed in a diagonal direction of the base.
    Type: Grant
    Filed: January 19, 2024
    Date of Patent: February 17, 2026
    Assignee: E.M Tech Co., Ltd.
    Inventors: Chang Gi Lee, Young Nam Ahn, Chi Joung Kim
  • Patent number: 12397688
    Abstract: Provided is a continuous recliner for vehicle seats, in which an internal gear and a cover plate are fixed to each other, and the cover plate is welded to a cushion bracket. A heat transfer path is lengthened to prevent deterioration in the surface roughness of sliding friction parts, thereby reducing the operating force and operating noise of the recliner.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: August 26, 2025
    Assignee: DAS CO., LTD.
    Inventors: Jae Geun Jo, Chang Gi Lee
  • Publication number: 20250059762
    Abstract: Provided is an eco-friendly ceiling panel apparatus mountable on the ceiling of a building, and a method of manufacturing the same, the ceiling panel apparatus including a base substantially having a rectangular plate shape and made of a first material, and one or more reinforcing members substantially having a rod shape, made of a second material, and provided in the base to prevent sagging of the base, wherein the reinforcing members are disposed in a diagonal direction of the base.
    Type: Application
    Filed: January 19, 2024
    Publication date: February 20, 2025
    Inventors: Chang Gi LEE, Young Nam AHN, Chi Joung KIM
  • Publication number: 20230271533
    Abstract: Provided is a continuous recliner for vehicle seats, in which an internal gear and a cover plate are fixed to each other, and the cover plate is welded to a cushion bracket. A heat transfer path is lengthened to prevent deterioration in the surface roughness of sliding friction parts, thereby reducing the operating force and operating noise of the recliner.
    Type: Application
    Filed: January 12, 2023
    Publication date: August 31, 2023
    Inventors: Jae Geun Jo, Chang Gi Lee
  • Publication number: 20150237402
    Abstract: An image display apparatus and a method for operating the same are disclosed. The method for operating an image display apparatus includes receiving user input for requesting content recommendation, transmitting a message requesting information about a user and a content recommendation list to a server, receiving, from the server, the content recommendation list based on content viewing information of other users linked with the user over a social network, displaying the received content recommendation list, receiving input for selecting at least one piece of content from the content recommendation list, and playing back the selected content.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 20, 2015
    Inventor: Chang Gi Lee
  • Patent number: 7241665
    Abstract: A method for forming an isolation structure on a semiconductor substrate includes opening a portion of a pad oxide layer overlying the substrate using a process gas including an etchant gas and a polymer-forming gas. A portion of the substrate exposed by the opening step is etched to form a trench having a first slope and a second slope. The first slope is greater than 45 degrees, and the second slope is less than 45 degrees. The trench is filled to form the isolation structure.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: July 10, 2007
    Assignee: SilTerra Malaysia Sdn. Bhd.
    Inventors: Inki Kim, Sang Yeon Kim, Min Paek, Ch'ng Toh Ghee, Ramakrishnan Rajagopal, Chiew Sin Ping, Wan Gie Lee, Choong Shiau Chien, Charlie Tay, Chang Gi Lee, Hitomi Watanabe, Naoto Inoue
  • Patent number: 7091104
    Abstract: A method for forming an isolation structure on a semiconductor substrate includes opening a portion of a pad oxide layer overlying the substrate using a process gas including an etchant gas and a polymer-forming gas. A portion of the substrate exposed by the opening step is etched to form a trench having a first slope and a second slope. The first slope is greater than 45 degrees, and the second slope is less than 45 degrees. The trench is filled to form the isolation structure.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: August 15, 2006
    Assignee: SilTerra Malaysia Sdn. Bhd.
    Inventors: Inki Kim, Sang Yeon Kim, Min Paek, Ch'ng Toh Ghee, Ramakrishnan Rajagopal, Chiew Gie Lee, Wan Gie Lee, Choong Shiau Chien, Charlie Tay, Chang Gi Lee, Hitomi Watanabe, Naoto Inoue
  • Publication number: 20040147090
    Abstract: A method for forming an isolation structure on a semiconductor substrate includes opening a portion of a pad oxide layer overlying the substrate using a process gas including an etchant gas and a polymer-forming gas. A portion of the substrate exposed by the opening step is etched to form a trench having a first slope and a second slope. The first slope is greater than 45 degrees, and the second slope is less than 45 degrees. The trench is filled to form the isolation structure.
    Type: Application
    Filed: January 23, 2003
    Publication date: July 29, 2004
    Applicant: SilTerra Malaysia Sdn. Bhd.
    Inventors: Inki Kim, Sang Yeon Kim, Min Paek, Ch?apos;ng Toh Ghee, Ramakrishnan Rajagopal, Chiew Sin Pin, Wan Gie Lee, Choong Shiau Chien, Charlie Tay, Chang Gi Lee, Hitomi Watanabe, Naoto Inoue