Patents by Inventor Choong-Yun LEE

Choong-Yun 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: 10265744
    Abstract: A hot rolling device, according to one embodiment of the present invention, may comprise: a cast part supply portion for producing a cast part; a hot roller, linked to the cast part supply portion, for receiving and hot-rolling the cast part; and a heating unit, arranged between the cast part supply portion and the hot roller, for reheating an outer surface portion in the widthwise direction of the cast part while latent heat is maintained in the center portion of the widthwise direction of the cast part from preheating.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 23, 2019
    Assignee: POSCO
    Inventors: Jea-Sook Chung, Il-Sin Bae, Young-Ju Ko, Kyeong-Mi Park, In-Jae Lee, Choong-Yun Lee, Suk-Cheol Song, Seong-Yeon Kim, Jong-Yeon Hwang, Sang-Hyeon Lee
  • Publication number: 20160318081
    Abstract: A hot rolling device, according to one embodiment of the present invention, may comprise: a cast part supply portion for producing a cast part; a hot roller, linked to the cast part supply portion, for receiving and hot-rolling the cast part; and a heating unit, arranged between the cast part supply portion and the hot roller, for reheating an outer surface portion in the widthwise direction of the cast part while latent heat is maintained in the center portion of the widthwise direction of the cast part from preheating.
    Type: Application
    Filed: December 26, 2013
    Publication date: November 3, 2016
    Applicants: POSCO, POSCO
    Inventors: Jea-Sook CHUNG, Il-Sin BAE, Young-Ju KO, Kyeong-Mi PARK, In-Jae LEE, Choong-Yun LEE, Suk-Cheol SONG, Seong-Yeon KIM, Jong-Yeon HWANG, Sang-Hyeon LEE
  • Publication number: 20160318096
    Abstract: A continuous casting and rolling apparatus according to one embodiment of the present invention provides: a continuous caster for generating a steel sheet; a first rolling unit associated with the continuous caster; and a second rolling unit which is spaced apart in the outlet of the first rolling unit and comprises: a rolling mill for pressing down the steel sheet; and a cutter for cutting a portion of the steel sheet, wherein the cutter is spaced from the second rolling unit by a length corresponding to the length of the steel sheet discharged in an at least discontinuous rolling mode, and may comprise a cut withdrawal unit provided between the first rolling unit and the second rolling unit.
    Type: Application
    Filed: December 2, 2014
    Publication date: November 3, 2016
    Applicant: POSCO
    Inventors: Seong-Yeon KIM, Young-Ju KO, Il-Sin BAE, Choong-Yun LEE, In-Jae LEE, Jea-Sook CHUNG, Sang-Hyeon LEE
  • Publication number: 20150298190
    Abstract: A mandrel of a coil box comprises: a cylindrical mandrel body having a center shaft disposed therein and a slot into which a front end portion of a hot bar is inserted; and a guide part which is arranged towards the inside of the mandrel body from a peripheral wall of one side of the slot so as to prevent the cooling and plastic deformation of the front end portion of the bar inserted through the slot.
    Type: Application
    Filed: November 20, 2013
    Publication date: October 22, 2015
    Applicant: POSCO
    Inventors: Choong-Yun LEE, Sang-Hyeon LEE, Sung-Lim LEE