Patents by Inventor Chung-Won Kim

Chung-Won Kim 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: 12180559
    Abstract: Provided are a bake-hardened hot-dip galvanized steel sheet with excellent powdering resistance, and a manufacturing method therefor. The bake-hardened hot-dip galvanized steel sheet comprises, by wt %, 0.0001-0.005% of carbon (C), 0.1-1.2% of manganese (Mn), 0.02% or less of silicon (Si) (excluding 0%), 0.01-0.04% of phosphorus (P), 0.01% or less of sulfur (S) (excluding 0%), 0.01% or less of nitrogen (N) (excluding 0%), 0.01-0.06% of aluminum (sol.Al), 0.003-0.015% of niobium (Nb), 0.0005-0.0035% of boron (B), 0.01-0.1% of chromium (Cr), 0.005-0.05% of molybdenum (Mo), 0.003% or less of titanium (Ti) (excluding 0%), and the balance of Fe and inevitable impurities, and satisfies relationships 1 and 2, wherein the microstructure thereof is ferrite single phase and satisfies relationship 3.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: December 31, 2024
    Assignee: POSCO CO., LTD
    Inventors: Sang-Hyun Kim, Seong-Ho Han, Chung-Won Kim, Yu-Mi Ha
  • Publication number: 20240011116
    Abstract: Provided are a bake-hardened hot-dip galvanized steel sheet with excellent powdering resistance, and a manufacturing method therefor. The bake-hardened hot-dip galvanized steel sheet comprises, by wt %, 0.0001-0.005% of carbon (C), 0.1-1.2% of manganese (Mn), 0.02% or less of silicon (Si) (excluding 0%), 0.01-0.04% of phosphorus (P), 0.01% or less of sulfur (S) (excluding 0%), 0.01% or less of nitrogen (N) (excluding 0%), 0.01-0.06% of aluminum (sol.Al), 0.003-0.015% of niobium (Nb), 0.0005-0.0035% of boron (B), 0.01-0.1% of chromium (Cr), 0.005-0.05% of molybdenum (Mo), 0.003% or less of titanium (Ti) (excluding 0%), and the balance of Fe and inevitable impurities, and satisfies relationships 1 and 2, wherein the microstructure thereof is ferrite single phase and satisfies relationship 3.
    Type: Application
    Filed: November 3, 2021
    Publication date: January 11, 2024
    Inventors: Sang-Hyun KIM, Seong-Ho HAN, Chung-Won KIM, Yu-Mi HA
  • Patent number: 11584973
    Abstract: Provided is a steel sheet having excellent image clarity after painting, including: carbon (C): 0.001% to 0.03%, silicon (Si): 0.001% to 0.35%, manganese (Mn): 0.05% to 2.2%, phosphorus (P): 0.003% to 0.1%, sulfur (S): 0.001% or 0.025%, aluminum (Al): 0.01% to 0.1%, nitrogen (N): 0.001% to 0.007%, and a remainder of iron (Fe) and inevitable impurities. The microstructure of the steel sheet mainly is ferrite phases. An R-cube texture of a surface layer of the steel sheet is 5% or less by area %.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: February 21, 2023
    Assignee: POSCO CO., LTD
    Inventors: Doo-Jin Paik, Seul-Ki Park, Chung-Won Kim, Jung-Ki Kim, Sung-Il Kim, Hyeon-Seok Hwang, Je-Woong Lee, Jeong-Eun Kim, Cho-Rong Hong
  • Publication number: 20200347474
    Abstract: Provided is a steel sheet having excellent image clarity after painting, including: carbon (C): 0.001% to 0.03%, silicon (Si): 0.001% to 0.35%,manganese (Mn): 0.05% to 2.2%, phosphorus (P): 0.003% to 0.1%, sulfur (S): 0.001% or 0.025%, aluminum (Al): 0.01%to 0.1%, nitrogen (N): 0.001% to 0.007%, and a remainder of iron (Fe) and inevitable impurities. The microstructure of the steel sheet mainly is ferrite phases. An R-cube texture of a surface layer of the steel sheet is 5% or less by area %.
    Type: Application
    Filed: September 13, 2018
    Publication date: November 5, 2020
    Inventors: Doo-Jin PAIK, Seul-Ki PARK, Chung-Won KIM, Jung-Ki KIM, Sung-Il KIM, Hyeon-Seok HWANG, Je-Woong LEE, Jeong-Eun KIM, Cho-Rong HONG
  • Patent number: 8791368
    Abstract: An exemplary embodiment of the present invention relates to a conductive structure body that comprises a darkening pattern layer having AlOxNy, and a method for manufacturing the same. The conductive structure body according to the exemplary embodiment of the present invention may prevent reflection by a conductive pattern layer without affecting conductivity of the conductive pattern layer, and improve a concealing property of the conductive pattern layer by improving absorbance. Accordingly, a display panel having improved visibility may be developed by using the conductive structure body according to the exemplary embodiment of the present invention.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: July 29, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Beom Mo Koo, Ji Young Hwang, Song Ho Jang, Jin Young Park, Chung Won Kim, Seung Heon Lee
  • Publication number: 20130140065
    Abstract: An exemplary embodiment of the present invention relates to a conductive structure body that comprises a darkening pattern layer having AlOxNy, and a method for manufacturing the same. The conductive structure body according to the exemplary embodiment of the present invention may prevent reflection by a conductive pattern layer without affecting conductivity of the conductive pattern layer, and improve a concealing property of the conductive pattern layer by improving absorbance. Accordingly, a display panel having improved visibility may be developed by using the conductive structure body according to the exemplary embodiment of the present invention.
    Type: Application
    Filed: March 2, 2010
    Publication date: June 6, 2013
    Applicant: LG CHEM ,LTD.
    Inventors: Beom Mo Koo, Ji Young Hwang, Song Ho Jang, Jin Young Park, Chung Won Kim, Seung Heon Lee
  • Patent number: D573081
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: July 15, 2008
    Assignee: Daimler AG
    Inventors: Chung-Won Kim, Peter Pfeiffer