Patents by Inventor Seok Jun Hong

Seok Jun Hong 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: 11136651
    Abstract: Provided is a Zn—Mg alloy plated steel material comprising: a base steel material; and first to third Zn—Mg alloy layers sequentially formed on the base steel material, wherein the first to third Zn—Mg alloy layers have a Zn single phase, a Mg single phase, a MgZn2 alloy phase, and a Mg2Zn11 alloy phase, an area rate of the MgZn2 alloy phase included in the first to third Zn—Mg alloy layers is larger than an area rate of the Mg2Zn11 alloy phase included in the first to third Zn—Mg alloy layers, and an area rate of a MgZn2 alloy phase included in each of the first to third Zn—Mg alloy layers is larger than an area rate of a MgZn2 alloy phase included in the second Zn—Mg alloy layer.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 5, 2021
    Assignee: POSCO
    Inventors: Seok-Jun Hong, Young-Do Kim, Woo-Sung Jung, Hyun-Woo Kim, Jong-Min Byun, Su-Ryong Bang, Tae-Yeob Kim
  • Publication number: 20200002803
    Abstract: Provided is a multilayer zinc alloy plated steel material comprising a base steel material and multiple plating layers formed on the base steel material, wherein each of the multiple plating layers includes one of a Zn plating layer, a Mg plating layer, and a Zn—Mg alloy plating layer, and the ratio of the weight of Mg contained in the multiple plating layers to the total weight of the multiple plating layers is from 0.13 to 0.24.
    Type: Application
    Filed: December 22, 2017
    Publication date: January 2, 2020
    Inventors: Young-Jin KWAK, Goo-Hwa KIM, Mun-Jong EOM, Seok-Jun HONG, Kyoung-Pil KO, Yong-Hwa JUNG, Dong-Yoeul LEE, Tae-Yeob KIM, Kyung-Hoon NAM
  • Publication number: 20190345584
    Abstract: Provided is a Zn—Mg alloy plated steel material comprising: a base steel material; and first to third Zn—Mg alloy layers sequentially formed on the base steel material, wherein the first to third Zn—Mg alloy layers have a Zn single phase, a Mg single phase, a MgZn2 alloy phase, and a Mg2Zn11 alloy phase, an area rate of the MgZn2 alloy phase included in the first to third Zn—Mg alloy layers is larger than an area rate of the Mg2Zn11 alloy phase included in the first to third Zn—Mg alloy layers, and an area rate of a MgZn2 alloy phase included in each of the first to third Zn—Mg alloy layers is larger than an area rate of a MgZn2 alloy phase included in the second Zn—Mg alloy layer.
    Type: Application
    Filed: December 22, 2017
    Publication date: November 14, 2019
    Inventors: Seok-Jun HONG, Young-Do KIM, Woo-Sung JUNG, Hyun-Woo KIM, Jong-Min BYUN, Su-Ryong BANG
  • Patent number: 10196736
    Abstract: Provided are a heating apparatus configured to generate a coating vapor for coating a base metal (steel sheet) which is continuously transferred in a vacuum state, and a coating device including the heating apparatus. A coating material to be converted into a coating vapor is initially supplied in a solid phase (solid state) and then phase changed into a liquid (liquid state). Thereafter, the liquid-state coating material is supplied to a heating unit, thereby preventing problems such as equipment erosion occurring when a liquid coating material is directly supplied and preventing the decrease of the temperature of a coating material when a solid wire is supplied as a coating material. As a result, the energy efficiency of the heating apparatus may be maximized.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: February 5, 2019
    Assignee: POSCO
    Inventors: Yong-Hwa Jung, Kyung-Hoon Nam, Mun-Jong Eom, Woo-Sung Jung, Seok-Jun Hong, Young-Jin Kwak, Tae-Yeob Kim, Dong-Yoeul Lee
  • Publication number: 20180229343
    Abstract: A chemical mechanical polishing (CMP) device includes a rotatable CMP pad located on a polishing platen, a rotatable wafer carrier located on an upper portion of the CMP pad and including a wafer, and a surface-roughness measuring device which is located apart from a surface of the CMP pad in a vertical direction and measures surface roughness of the CMP pad, wherein the surface-roughness measuring device includes a sensor array having a plurality of sensors, and the sensor array is horizontally movable over the upper portion of the CMP pad.
    Type: Application
    Filed: August 17, 2017
    Publication date: August 16, 2018
    Applicant: Research & Business Foundation SUNGKYUNKWAN UNIVER SITY
    Inventors: Ho-joong KIM, Jun-yong KIM, Tae-sung KIM, Seok-jun HONG
  • Patent number: 9982342
    Abstract: The present invention relates to a Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent coating adhesion and to a method for manufacturing same. Provided are a Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent adhesion and a method for manufacturing same, the steel sheet comprising: a substrate steel sheet; a Zn—Fe intermetallic compound layer formed on the substrate steel sheet; a first Zn—Mg coating layer formed on the Zn—Fe intermetallic compound layer and comprising a Zn—Fe intermetallic compound in which the content of Zn is 95% by weight or higher; a second Zn—Mg coating layer formed on the first Zn—Mg coating layer and comprising a Zn—Mg intermetallic compound in which the content of Zn is 80 to 95% by weight; and an oxide film formed on the second Zn—Mg coating layer and comprising a metallic oxide.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: May 29, 2018
    Assignee: POSCO
    Inventors: Dong-Yoeul Lee, Kyung-Hoon Nam, Yong-Hwa Jung, Seok-Jun Hong, Tae-Yeob Kim, Young-Jin Kwak, Mun-Jong Eom, Woo-Sung Jung
  • Patent number: 9957619
    Abstract: A phosphate solution for a zinc or zinc-based alloy plated steel sheet, and a zinc or zinc-based alloy plated steel sheet using the same are provided. The phosphate solution for a zinc or zinc-based alloy plated steel sheet contains a molybdenum (Mo) ion, a calcium (Ca) ion and a phosphate ion. A zinc or zinc-based alloy plated steel sheet includes a base steel sheet, a zinc-based or zinc alloy-based plating layer formed on the base steel sheet, and a phosphate film formed on the zinc-based or zinc alloy-based plating layer. The phosphate film contains a molybdenum compound, Ca and a phosphate. A pitting phenomenon occurring at the time of treating a steel sheet with a phosphate is prevented, and excellent corrosion resistance is exhibited on a phosphate film.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: May 1, 2018
    Assignee: POSCO
    Inventors: Young-Jin Kwak, Kyung-Hoon Nam, Yong-Hwa Jung, Tae-Yeob Kim, Dong-Yoeul Lee, Seok-Won Cho, Young-Ra Lee, Mun-Jong Eom, Woo-Sung Jung, Seok-Jun Hong, Jae-Kyu Min, Hong-Kyun Sohn
  • Publication number: 20170350029
    Abstract: The present invention relates to a plated steel sheet, which can be used for vehicles, home appliances, construction materials and the like, and to a method for manufacturing the plated steel sheet.
    Type: Application
    Filed: December 22, 2015
    Publication date: December 7, 2017
    Inventors: Seok-Jun HONG, Kyung-Hoon NAM, Mun-Jong EOM, Sang-Hoon PARK
  • Patent number: 9744743
    Abstract: Provided are a Zn—Mg alloy plated steel sheet and a method for manufacturing same. The Zn—Mg alloy plated steel sheet comprises a base steel sheet and a Zn—Mg plating layer formed on the base steel sheet, wherein the content of Mg in the Zn—Mg plating layer is 8 weight % or less (provided that 0 weight % is excluded), and the Zn—Mg plating layer is a compound phase of Zn and Mg2Zn11. According to the present invention, provided are a Zn—Mg alloy plated steel sheet and a method for manufacturing the same, wherein the Zn—Mg alloy plated steel sheet has excellent corrosion resistance, high adhesion, and superior surface quality of metallic luster.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: August 29, 2017
    Assignee: POSCO
    Inventors: Woo-Sung Jung, Seok-Jun Hong, Kyung-Hoon Nam, Dong-Yoeul Lee, Yong-Hwa Jung, Young-Jin Kwak, Mun-Jong Eom, Tae-Yeob Kim
  • Patent number: 9732423
    Abstract: Provided is a dry coating apparatus for coating a coating material, i.e., deposition vapor (metal vapor) on a substrate (a steel strip). The dry coating apparatus includes a coating part disposed in a vacuum to coat deposition vapor generated through heating and evaporation of a supplied coating material onto a proceeding object to be coated and a heating source disposed in an atmosphere to heat and levitate the coating material in the coating part.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: August 15, 2017
    Assignee: POSCO
    Inventors: Kyung-Hoon Nam, Mun-Jong Eom, Young-Jin Kwak, Woo-Sung Jung, Tae-Yeob Kim, Dong-Yoeul Lee, Seok-Jun Hong, Kyoung-Bo Kim, Yong-Hwa Jung, Sang-Hoon Park, Sang-Cheol Lee, Yang-Woo Nam
  • Publication number: 20160355926
    Abstract: The present invention relates to a Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent coating adhesion and to a method for manufacturing same. Provided are a Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent adhesion and a method for manufacturing same, the steel sheet comprising: a substrate steel sheet; a Zn—Fe intermetallic compound layer formed on the substrate steel sheet; a first Zn—Mg coating layer formed on the Zn—Fe intermetallic compound layer and comprising a Zn—Fe intermetallic compound in which the content of Zn is 95% by weight or higher; a second Zn—Mg coating layer formed on the first Zn—Mg coating layer and comprising a Zn—Mg intermetallic compound in which the content of Zn is 80 to 95% by weight; and an oxide film formed on the second. Zn—Mg coating layer and comprising a metallic oxide.
    Type: Application
    Filed: August 16, 2016
    Publication date: December 8, 2016
    Inventors: Dong-Yoeul LEE, Kyung-Hoon NAM, Yong-Hwa JUNG, Seok-Jun HONG, Tae-Yeob KIM, Young-Jin KWAK, Mun-Jong EOM, Woo-Sung JUNG
  • Publication number: 20160312356
    Abstract: Provided are a heating apparatus for generating coating steam (gas) for deposition coating of a continuously moving base material (steel plate), and a coating machine having the heating apparatus. According to the present invention, a liquid-state supply scheme is adopted, and a supplied solid-state coating substance is contained inside a nozzle means and then heated such that a liquid-state coating substance is supplied to a heating unit; accordingly, smooth and stable generation of coating steam is made possible, preheating and supply of a solid-state coating substance is additionally implemented, and clogging of a supply tube is prevented, thereby ultimately improving the coating quality of a fast moving steel plate or the workability.
    Type: Application
    Filed: December 19, 2013
    Publication date: October 27, 2016
    Applicant: POSCO
    Inventors: Yong-Hwa JUNG, Woo-Sung JUNG, Kyung-Hoon NAM, Mun-Jong EOM, Seok-Jun HONG, Young-Jin KWAK, Tae-Yeob KIM, Dong-Yoeul LEE
  • Patent number: 9441302
    Abstract: Provided is a method for manufacturing a Zn—Mg alloy-coated steel sheet having high blackening resistance and coating adhesion. In one implementation, the method may include forming a Zn—Mg coating layer on a base steel sheet and performing a combustion chemical vapor deposition (CCVD) process to form an oxide film. The oxide film may include a metal oxide and the metal oxide may include silicon oxide (SiO2) and magnesium oxide (MgO). The base steel sheet may be maintained within a temperature range of 330° C. to 450° C. during the performing of the CCVD process.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: September 13, 2016
    Assignee: POSCO
    Inventors: Dong-Yoeul Lee, Kyung-Hoon Nam, Yong-Hwa Jung, Seok-Jun Hong, Tae-Yeob Kim, Young-Jin Kwak, Mun-Jong Eom, Woo-Sung Jung
  • Patent number: 9351924
    Abstract: One aspect of the present invention relates to a drug delivery system comprising a layered structure where a drug layer and a biodegradable polymer layer for controlling the release of drugs are alternately laminated. The drug delivery system can easily control an in-vivo drug release rate and a release amount.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: May 31, 2016
    Assignee: SNU R&DB FOUNDATION
    Inventors: Dong-Il Cho, Seok Jun Hong, Sang Min Lee, Jae Hyun Ahn, Hyoung Jung Yoo
  • Patent number: 9345568
    Abstract: A retinal prosthesis system can comprise: a flexible substrate; a nanowire light detector which is placed on the substrate, and comprises one or more nanowires of which the resistance changes according to the applied light; one or more micro-electrodes which are placed on the substrate, are electrically connected to the nanowire light detector, and come in contact with retinal cells; and an electric power supply source for applying electric power to the nanowire light detector and the micro-electrodes. The retinal prosthesis system can be implemented into a very thin and flexible substrate type high resolution retinal system by manufacturing a nanowire light detector on a substrate in which micro-electrodes are implemented.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: May 24, 2016
    Assignee: SNU R&DB FOUNDATION
    Inventors: Dong Il Cho, Suk Won Jung, Sang Min Lee, Sun Kil Park, Jae Hyun Ahn, Seok Jun Hong, Hyoung Jung Yoo
  • Patent number: 9296903
    Abstract: Provided is a film formation composition for improving the blackening of the surface of a steel sheet, particularly, the surface of a steel sheet containing Mg on the surface thereof, such as a Mg sheet, a plated steel sheet having a plated layer comprising Mg, and the like, a steel sheet comprising a film formed by the composition, and a method for forming the film. Provided are a film formation composition for preventing the blackening of the surface of the steel sheet, comprising: 2.5-7.5 parts by weight of a water-soluble phenoxy resin; 0.1-0.5 parts by weight of a fluorometal acid; 0.1-0.5 parts by weight of a metal compound; and 1-5 parts by weight of a cross-linking agent.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: March 29, 2016
    Assignees: POSCO, NOROO COIL COATINGS CO., LTD.
    Inventors: Young-Jin Kwak, Dong-Yun Kim, Woo-Sung Jung, Kyung-Hoon Nam, Dong-Yoeul Lee, Seok-Jun Hong, Tae-Yeob Kim, Yong-Hwa Jung, Mun-Jong Eom, Myoung-Hee Choi, Gab-Yong Kim, Sang-Hoon Park, Sang-Cheol Lee, Yang-Woo Nam
  • Publication number: 20150352812
    Abstract: Provided are a Zn—Mg alloy plated steel sheet and a method for manufacturing same. The Zn—Mg alloy plated steel sheet comprises a base steel sheet and a Zn—Mg plating layer formed on the base steel sheet, wherein the content of Mg in the Zn—Mg plating layer is 8 weight % or less (provided that 0 weight % is excluded), and the Zn—Mg plating layer is a compound phase of Zn and Mg2Zn11. According to the present invention, provided are a Zn—Mg alloy plated steel sheet and a method for manufacturing the same, wherein the Zn—Mg alloy plated steel sheet has excellent corrosion resistance, high adhesion, and superior surface quality of metallic luster.
    Type: Application
    Filed: December 28, 2012
    Publication date: December 10, 2015
    Applicant: POSCO
    Inventors: Woo-Sung JUNG, Seok-Jun HONG, Kyung-Hoon NAM, Dong-Yoeul LEE, Yong-Hwa JUNG, Young-Jin KWAK, Mun-Jong EOM, Tae-Yeob KIM
  • Publication number: 20150345008
    Abstract: Provided are a heating apparatus configured to generate a coating vapor for coating a base metal (steel sheet) which is continuously transferred in a vacuum state, and a coating device including the heating apparatus. A coating material to be converted into a coating vapor is initially supplied in a solid phase (solid state) and then phase changed into a liquid (liquid state). Thereafter, the liquid-state coating material is supplied to a heating unit, thereby preventing problems such as equipment erosion occurring when a liquid coating material is directly supplied and preventing the decrease of the temperature of a coating material when a solid wire is supplied as a coating material. As a result, the energy efficiency of the heating apparatus may be maximized.
    Type: Application
    Filed: December 19, 2013
    Publication date: December 3, 2015
    Inventors: Yong-Hwa JUNG, Kyung-Hoon NAM, Mun-Jong EOM, Woo-Sung JUNG, Seok-Jun HONG, Young-Jin KWAK, Tae-Yeob KIM, Dong-Yoeul LEE
  • Publication number: 20150329972
    Abstract: A phosphate solution for a zinc or zinc-based alloy plated steel sheet, and a zinc or zinc-based alloy plated steel sheet using the same are provided. The phosphate solution for a zinc or zinc-based alloy plated steel sheet contains a molybdenum (Mo) ion, a calcium (Ca) ion and a phosphate ion. A zinc or zinc-based alloy plated steel sheet includes a base steel sheet, a zinc-based or zinc alloy-based plating layer formed on the base steel sheet, and a phosphate film formed on the zinc-based or zinc alloy-based plating layer. The phosphate film contains a molybdenum compound, Ca and a phosphate. A pitting phenomenon occurring at the time of treating a steel sheet with a phosphate is prevented, and excellent corrosion resistance is exhibited on a phosphate film.
    Type: Application
    Filed: December 28, 2012
    Publication date: November 19, 2015
    Applicant: POSCO
    Inventors: Young-Jin KWAK, Kyung-Hoon NAM, Yong-Hwa JUNG, Tae-Yeob KIM, Dong-Yoeul LEE, Seok-Won CHO, Young-Ra LEE, Mun-Jong EOM, Woo-Sung JUNG, Seok-Jun HONG, Jae-Kyu MIN, Hong-Kyun SOHN
  • Publication number: 20150030875
    Abstract: The present invention relates to a Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent coating adhesion and to a method for manufacturing same. Provided are a Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent adhesion and a method for manufacturing same, the steel sheet comprising: a substrate steel sheet; a Zn—Fe intermetallic compound layer formed on the substrate steel sheet; a first Zn—Mg coating layer formed on the Zn—Fe intermetallic compound layer and comprising a Zn—Fe intermetallic compound in which the content of Zn is 95% by weight or higher; a second Zn—Mg coating layer formed on the first Zn—Mg coating layer and comprising a Zn—Mg intermetallic compound in which the content of Zn is 80 to 95% by weight; and an oxide film formed on the second Zn—Mg coating layer and comprising a metallic oxide.
    Type: Application
    Filed: December 27, 2012
    Publication date: January 29, 2015
    Inventors: Dong-Yoeul Lee, Kyung-Hoon Nam, yong-Hwa Jung, Seok-Jun Hong, Tae-Yeob Kim, Young-Jin Kwak, Mun-Jong Eom, Woo-Sung Jung