Patents by Inventor Jae-Dong Cho

Jae-Dong Cho 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: 20250146116
    Abstract: A galvanized steel sheet according to one aspect of the present invention comprises: a base steel sheet; and a Zn—Al—Mg-based plating layer provided on at least one surface of the base steel sheet, wherein the Zn—Al—Mg-based plating layer may include a surface modified region enriched with cerium (Ce) on a surface layer side of the Zn—Al—Mg-based plating layer.
    Type: Application
    Filed: December 4, 2024
    Publication date: May 8, 2025
    Applicant: POSCO CO., LTD
    Inventors: Yon-Kyun Song, Yun-Ha Yoo, Joong-Chul Park, Hyun-Ju Jeong, Jae-Dong Cho
  • Patent number: 12188129
    Abstract: A galvanized steel sheet according to one aspect of the present invention comprises: a base steel sheet; and a Zn—Al—Mg-based plating layer provided on at least one surface of the base steel sheet, wherein the Zn—Al—Mg-based plating layer may include a surface modified region enriched with cerium (Ce) on a surface layer side of the Zn—Al—Mg-based plating layer.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: January 7, 2025
    Assignee: POSCO CO., LTD
    Inventors: Yon-Kyun Song, Yun-Ha Yoo, Joong-Chul Park, Hyun-Ju Jeong, Jae-Dong Cho
  • Publication number: 20230304137
    Abstract: A galvanized steel sheet according to one aspect of the present invention comprises: a base steel sheet; and a Zn-Al-Mg-based plating layer provided on at least one surface of the base steel sheet, wherein the Zn-Al-Mg-based plating layer may include a surface modified region enriched with cerium (Ce) on a surface layer side of the Zn-Al-Mg-based plating layer.
    Type: Application
    Filed: August 24, 2021
    Publication date: September 28, 2023
    Applicant: POSCO Co., Ltd
    Inventors: Yon-Kyun Song, Yun-Ha YOO, Joong-Chul Park, Hyun-Ju Jeong, Jae-Dong Cho
  • Patent number: 9376576
    Abstract: Provided are a resin composition for surface treatment and a surface-treated steel sheet coated therewith. The resin composition for surface treatment includes a dispersing element having excellent thermal conductivity and heat dissipation, thereby maintaining physical properties of the conventional anti-fingerprint steel sheet, for example, high whiteness, fingerprint resistance, workability, electric conductivity and alkali resistance, and providing heat dissipation. In addition, the surface-treated steel sheet coated with the resin composition for surface treatment of the present invention has physical properties such as high heat dissipation, electric conductivity and whiteness, and thus may be replaced with a bottom chassis of a backlight unit, particularly, an edge-type backlight unit.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: June 28, 2016
    Assignees: POSCO, Noroo Coil Coatings, Co., Ltd.
    Inventors: Yong-Gyun Jung, Gab-Yong Kim, Woon-Jong Kim, Jae-Dong Cho, Jong-Sang Kim, Joong-Kyu Kim, Myoung-Hee Choi, Yon-Kyun Song
  • Patent number: 9322099
    Abstract: Provided is a composition for forming a photocatalytic coating layer, a process for preparing said composition, a self-cleaning article comprising a photocatalytic coating layer comprising said composition and a process for preparing said self-cleaning article. The composition may be used to prepare a self-cleaning article having excellent anticorrosion and processability by one coating and drying procedure, without several coating and drying procedures.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: April 26, 2016
    Assignees: POSCO, Noroo Holdings Co., Ltd.
    Inventors: Hye Jin Yoo, Wook Hyun Song, Gab Yong Kim, Jae Ryung Lee, Jae Dong Cho
  • Patent number: 9228111
    Abstract: Provided is a resin composition for surface treatment of a steel sheet including a binder resin, graphene and a solvent. More particularly, as only a small amount of the graphene is included in the resin composition used for surface treatment of a steel sheet, a user-required electrical conductivity can be provided to the steel sheet.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: January 5, 2016
    Assignee: POSCO
    Inventors: Jae Dong Cho, Jae Soon Lee, Jae Ryung Lee, Sang Eun Shim
  • Patent number: 8956734
    Abstract: Provided is a black resin steel plate having superior drawing ability and glossiness and particularly to a black resin steel plate in which the coefficient of friction of a black resin film is adjusted so as to block the transfer of a resin layer due to a reduction in thickness of the resin layer, thereby improving blackness and drawing ability, and to a method of manufacturing the same.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 17, 2015
    Assignee: Posco
    Inventors: Yon Kyun Song, Chang Hoon Choi, Yeon Ho Kim, Jae Dong Cho
  • Publication number: 20140147645
    Abstract: Provided are a resin composition for surface treatment and a surface-treated steel sheet coated therewith. The resin composition for surface treatment includes a dispersing element having excellent thermal conductivity and heat dissipation, thereby maintaining physical properties of the conventional anti-fingerprint steel sheet, for example, high whiteness, fingerprint resistance, workability, electric conductivity and alkali resistance, and providing heat dissipation. In addition, the surface-treated steel sheet coated with the resin composition for surface treatment of the present invention has physical properties such as high heat dissipation, electric conductivity and whiteness, and thus may be replaced with a bottom chassis of a backlight unit, particularly, an edge-type backlight unit.
    Type: Application
    Filed: July 13, 2012
    Publication date: May 29, 2014
    Applicants: NOROO COIL COATINGS, CO., LTD., POSCO
    Inventors: Yong-Gyun Jung, Gab-Yong Kim, Woon-Jong Kim, Jae-Dong Cho, Jong-Sang Kim, Joong-Kyu Kim, Myoung-Hee Choi, Yon-Kyun Song
  • Publication number: 20130244053
    Abstract: Provided is a black resin steel plate having superior drawing ability and glossiness and particularly to a black resin steel plate in which the coefficient of friction of a black resin film is adjusted so as to block the transfer of a resin layer due to a reduction in thickness of the resin layer, thereby improving blackness and drawing ability, and to a method of manufacturing the same.
    Type: Application
    Filed: November 4, 2011
    Publication date: September 19, 2013
    Applicant: POSCO
    Inventors: Yon Kyun Song, Chang Hoon Choi, Yeon Ho Kim, Jae Dong Cho
  • Publication number: 20110256387
    Abstract: Provided is a resin composition for surface treatment of a steel sheet including a binder resin, graphene and a solvent. More particularly, as only a small amount of the graphene is included in the resin composition used for surface treatment of a steel sheet, a user-required electrical conductivity can be provided to the steel sheet.
    Type: Application
    Filed: October 29, 2009
    Publication date: October 20, 2011
    Applicant: POSCO
    Inventors: Jae Dong Cho, Jae Soon Lee, Jae Ryung Lee, Sang Eun Shim
  • Publication number: 20110076488
    Abstract: A resin composition for a pre-coated steel sheet having good processibility, heat resistance, and corrosion resistance, and a pre-coated steel sheet fabricated by using the resin composition are disclosed. The resin composition includes a 10 to 40 parts by weight of a hardener comprising end-capped blocked polyisocyanate and a melamine resin by 2:1 to 3:1 by parts by weight and 0. 1 to 10 parts by weight of organized layered nano-clay, based on a 100 parts by weight of a base resin. The pre-coated steel sheet obtained by the method exhibits good processibility, heat resistance, and corrosion resistance.
    Type: Application
    Filed: May 14, 2009
    Publication date: March 31, 2011
    Applicant: POSCO
    Inventors: Jae-Soon Lee, Jae-Dong Cho, Jae-Ryung Lee, Yong-Kyun Cho
  • Publication number: 20100167066
    Abstract: Provided is a composition for forming a photocatalytic coating layer, a process for preparing said composition, a self-cleaning article comprising a photocatalytic coating layer comprising said composition and a process for preparing said self-cleaning article. The composition may be used to prepare a self-cleaning article having excellent anticorrosion and processability by one coating and drying procedure, without several coating and drying procedures.
    Type: Application
    Filed: December 16, 2009
    Publication date: July 1, 2010
    Applicants: POSCO, DPI Holdings Co., Ltd.
    Inventors: Hye Jin Yoo, Wook Hyun Song, Gab Yong Kim, Jae Ryung Lee, Jae Dong Cho
  • Publication number: 20080199723
    Abstract: Disclosed herein is a weldable pre-sealed steel sheet with improved corrosion resistance and weldability. The pre-sealed steel sheet comprises (a) a metal base, (b) a chromium-free pre-treatment coating layer formed on at least one surface of the metal base, and (c) a pre-sealed resin coating layer formed on at least one surface Chromium-free pretreatment of the chromium-free pretreatment coating layer. Since the weldable pre-sealed steel sheet does not contains heavy metals (e.g., chromium) harmful to humans, it is environmentally friendly. In addition, the weldable pre-sealed steel sheet exhibits superior corrosion resistance, chemical resistance, processability, electrodeposition paintability and adhesiveness after processing, as well as improved weldability.
    Type: Application
    Filed: July 25, 2006
    Publication date: August 21, 2008
    Applicants: POSCO, BUHMWOO INSTITUTE OF TECHNOLOGY RESEARCH
    Inventors: Jae-Dong Cho, Yeong-Sool Jin, Jae-Ryung Lee, Jong-Woo Choi, Suk-Hwan Jin, Woon-Jong Kim