Patents by Inventor Cheol Hwan HWANG

Cheol Hwan HWANG 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).

  • Injection mold, injection molding machine including injection mold, and method for manufacturing injection-molded product using injection molding machine
    Patent number: 11981055
    Abstract: The present invention relates to an injection mold, an injection molding machine including the injection mold, and a method of manufacturing an injection-molded product using the injection molding machine. More specifically, the present invention relates to an injection mold including a mold having a mold surface on which one or more deposition layers are formed, wherein the deposition layer includes a fluororesin homopolymer or polyether ether ketone (PEEK); an injection molding machine including the injection mold; and a method of manufacturing an injection-molded product using the injection molding machine.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: May 14, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Inki Min, Dongchul Shim, Cheol Hwan Hwang, Minchul Lee, In Woo Kim
  • Device for preventing rotation of vehicle seat rail
    Patent number: 11964594
    Abstract: A device for preventing rotation of a vehicle seat rail is described. The device prevents an upper rail on the center side of a vehicle from rotating when a forward load is applied to a vehicle seat, thereby preventing a lock plate from being fractured due to rotation of the upper rail.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: April 23, 2024
    Assignee: HYUNDAI TRANSYS INC.
    Inventors: Hwa Young Mun, Kyeong Ju Kim, Cheol Hwan Yoon, Jung Bin Lee, Jun Sik Hwang
  • INJECTION MOLDING DEVICE AND METHOD FOR INJECTION MOLDING
    Publication number: 20220105694
    Abstract: An injection molding device according to an embodiment of the present disclosure includes a first mold including a first injection port through which a raw material is injected; a second mold including a heating member; a first movable mold facing the first mold or the second mold and having a first cavity formed therein; and a second movable mold facing the first mold or the second mold and having a second cavity formed therein, wherein the position of the first movable mold and the position of the second movable mold can be changed.
    Type: Application
    Filed: February 13, 2020
    Publication date: April 7, 2022
    Inventors: Inki Min, Cheol Hwan Hwang
  • INJECTION MOLD, INJECTION MOLDING MACHINE INCLUDING INJECTION MOLD, AND METHOD FOR MANUFACTURING INJECTION-MOLDED PRODUCT USING INJECTION MOLDING MACHINE
    Publication number: 20210268694
    Abstract: The present invention relates to an injection mold, an injection molding machine including the injection mold, and a method of manufacturing an injection-molded product using the injection molding machine. More specifically, the present invention relates to an injection mold including a mold having a mold surface on which one or more deposition layers are formed, wherein the deposition layer includes a fluororesin homopolymer or polyether ether ketone (PEEK); an injection molding machine including the injection mold; and a method of manufacturing an injection-molded product using the injection molding machine.
    Type: Application
    Filed: December 4, 2019
    Publication date: September 2, 2021
    Inventors: Inki Min, Dongchul Shim, Cheol Hwan Hwang, Minchul Lee, In Woo Kim
  • RESIN COMPOSITION FOR MAKING INSIDE DOOR HANDLE WITH SKIN-CORE STRUCTURE, METHOD FOR MANUFACTURING INSIDE DOOR HANDLE USING THE SAME, AND ARTICLE THEREOF
    Publication number: 20200254666
    Abstract: A resin composition useful for making an inside door handle with a skin-core structure made by using co-injection, an inside door handle manufactured using the resin composition, and a method for manufacturing such a door handle are provided herein.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation, LG CHEM, LTD.
    Inventors: Jae Sik Seo, Sung Ho Yoon, Woo Chul Jung, Jeong Moo Lee, Cheol Hwan Hwang, Woo Young Park, Dong Chul Shim
  • RESIN COMPOSITION FOR MAKING INSIDE DOOR HANDLE WITH SKIN-CORE STRUCTURE, METHOD FOR MANUFACTURING INSIDE DOOR HANDLE USING THE SAME, AND ARTICLE THEREOF
    Publication number: 20180056560
    Abstract: A resin composition useful for making an inside door handle with a skin-core structure made by using co-injection, an inside door handle manufactured using the resin composition, and a method for manufacturing such a door handle are provided herein.
    Type: Application
    Filed: December 13, 2016
    Publication date: March 1, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, LG CHEM, LTD.
    Inventors: Jae Sik SEO, Sung Ho YOON, Woo Chul JUNG, Jeong Moo LEE, Cheol Hwan HWANG, Woo Young PARK, Dong Chul SHIM