Patents by Inventor Tae-Yeob Kim

Tae-Yeob 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).

  • Publication number: 20210213710
    Abstract: Provided are an alloy coating steel plate and a method of manufacturing the same, and in this case, the alloy coating steel plate includes a steel, and an Al—Mg—Si alloy layer positioned on the steel plate, wherein the Al—Mg—Si alloy layer is formed to include Mg—Si alloy grains in an alloy layer configured in an Al—Mg alloy phase.
    Type: Application
    Filed: March 30, 2021
    Publication date: July 15, 2021
    Inventors: Ji Hoon YANG, Jae In JEONG, Yong Hwa JUNG, Tae Yeob KIM
  • Patent number: 10988845
    Abstract: Provided is a plated steel sheet often used as materials for vehicles, home appliances, construction and the like and, more specifically, to a plated steel sheet having a multilayer structure and a method for manufacturing the same.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 27, 2021
    Assignee: POSCO
    Inventors: Kyoung-Pil Ko, Kyung-Hoon Nam, Tae-Yeob Kim, Dong-Yoeul Lee, Yong-Hwa Jung, Woo-Sung Jung
  • Publication number: 20210017640
    Abstract: Provided is an apparatus and a method that is capable of performing continuous coating at a constant coating composition and rate. One embodiment is a deposition apparatus for coating two or more compounds or elements on a substrate, the apparatus comprising: a supply unit for supplying the two or more compounds or elements to a plurality of solid bodies; a heating unit for melting and evaporating the solid bodies supplied from the supply unit to form vapor; a buffer unit, connected to the heating unit, in which the vapor stays and is mixed with previously generated vapor; and a nozzle connected to the buffer unit and having an opening toward the substrate.
    Type: Application
    Filed: October 19, 2018
    Publication date: January 21, 2021
    Inventors: Kyung-Hoon NAM, Yong-Hwa JUNG, Mun-Jong EOM, Tae-Yeob KIM, Kyoung-Pil KO, Woo-Sung JUNG
  • Publication number: 20210002772
    Abstract: Provided is a multilayered zinc alloy plated steel material comprising a base iron and multilayered plated layers formed on the base iron, wherein each of the multilayered plated layers is any one of a Zn-plated layer, a Mg-plated layer, and a Zn—Mg alloy-plated layer, and the ratio of the weight of Mg contained in the multilayered plated layers is 0.13-0.24 on the basis of the total weight of the multilayered plated layers.
    Type: Application
    Filed: December 13, 2018
    Publication date: January 7, 2021
    Inventors: Young-Jin KWAK, Woo-Sung JUNG, Tae-Yeob KIM
  • Publication number: 20200399745
    Abstract: Provided are a single layer zinc alloy plated steel material and a fabrication method therefor, the single layer zinc alloy plated steel material comprising a base iron and a zinc alloy plating layer formed on the base iron, wherein the zinc alloy plating layer contains 13-24 wt % of Mg, and the adhesion amount of the zinc alloy plating layer is at most 40 g/m2 (excluding 0 g/m2).
    Type: Application
    Filed: December 21, 2017
    Publication date: December 24, 2020
    Inventors: Young-Jin KWAK, Tae-Yeob KIM
  • Publication number: 20200385854
    Abstract: Provided is an alloy-coated steel sheet and a manufacturing method thereof. The alloy-coated steel sheet includes: a steel sheet; and an Al—Mg—Si alloy layer disposed on the steel sheet, wherein the Al—Mg—Si alloy layer has a form in which Mg—Si alloy grains are included in an alloy layer consisting of an Al—Mg alloy phase.
    Type: Application
    Filed: May 18, 2018
    Publication date: December 10, 2020
    Inventors: Ji Hoon YANG, Jae In JEONG, Yong Hwa JUNG, Tae Yeob KIM
  • Publication number: 20200180272
    Abstract: Provided is an alloy coating steel plate including: a steel plate; a plating layer including Al positioned on one surface or opposite surfaces of the steel plate; and a coating layer positioned on the plating layer. The coating layer is divided into two or three layers. The coating layer includes a phase of one of Al, Si, and Mg or an alloy phase including two or more thereof.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Inventors: Ji Hoon YANG, Jae In JEONG, Yong Hwa JUNG, Tae Yeob KIM
  • Patent number: 10619228
    Abstract: The present invention relates to an aluminum-magnesium coated steel plate using vacuum coating, wherein an aluminum-magnesium coating layer is constituted by 1 to 45 wt % of magnesium, a balance of aluminum, and other inevitable impurities, and an Al3Mg2 alloy phase is formed in the aluminum-magnesium coating layer by performing heat treatment of the steel plate.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: April 14, 2020
    Assignees: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Ji Hoon Yang, Jae In Jeong, Tae-Yeob Kim, Yonghwa Jung
  • Publication number: 20200086330
    Abstract: Provided is a filter unit including: a cyclone body member which receives fluid introduced thereinto in one direction and has a circular internal sectional shape to form a rotational flow of the fluid; and a discharge member which is disposed on a central upper end portion of the cyclone body member and has a cross section, at least a part of which has a noncircular shape, so as to reduce the rotational flow and then discharge the fluid.
    Type: Application
    Filed: May 23, 2017
    Publication date: March 19, 2020
    Inventors: Kyung-Hoon NAM, Sang-Joon KIM, Kyoung-Pil KO, Tae-Yeob KIM, Mun-Jong EOM
  • Publication number: 20200080205
    Abstract: Provided is a plated steel sheet often used as materials for vehicles, home appliances, construction and the like and, more specifically, to a plated steel sheet having a multilayer structure and a method for manufacturing the same.
    Type: Application
    Filed: December 21, 2017
    Publication date: March 12, 2020
    Inventors: Kyoung-Pil KO, Kyung-Hoon NAM, Tae-Yeob KIM, Dong-Yoeul LEE, Yong-Hwa JUNG, Woo-Sung JUNG
  • 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
  • Patent number: 10457834
    Abstract: The present invention provides a chromium-free coating composition having high blackening resistance and corrosion resistance, the composition comprising: 20 to 70 wt % of waterborne silane modified polyurethane; 0.5 to 5 wt % of a hardener; 0.5 to 5 wt % of a blackening inhibitor; 0.5 to 5 wt % of a corrosion inhibitor; and 0.5 to 5 wt % of a lubricant, with the balance being a solvent. The chromium-free coating composition has the effect of improving blackening resistance, corrosion resistance, alkali resistance, solvent resistance and fingerprint resistance of a steel sheet on which a coating layer comprising the composition is formed.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 29, 2019
    Assignees: POSCO, NOROO Coil Coatings Co., Ltd.
    Inventors: Young-Jin Kwak, Tae-Yeob Kim, Dong-Yun Kim, Yong-Jin Cho, Myoung-Hee Choi
  • Publication number: 20190203345
    Abstract: A molten material supply unit includes a raw material supply portion to which a solid material is supplied; a melting container portion connected to the raw material supply portion, and configured to melt the solid material to form a liquefied material and then emit the liquefied material externally; and a barrier portion provided between a supply area of the melting container portion connected to the raw material supply portion and an emission area of the melting container portion emitting the liquefied material externally, and configured to move only the liquefied material to the emission area.
    Type: Application
    Filed: May 16, 2017
    Publication date: July 4, 2019
    Inventors: Goo-Hwa KIM, Seung-Ho LIM, Tae-Yeob KIM, Yeong-Seon PARK, Kyung-Hoon NAM
  • 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: 20190015845
    Abstract: Provided is a vacuum deposition device for high-speed coating, comprising: a vacuum chamber having a reception space arranged therein; an evaporation crucible disposed in the reception space to evaporate a coating material; and a cyclone filter disposed in the reception space, wherein the cyclone filter separates a coarse particle from steam generated during the evaporation of the coating material. Therefore, the vacuum deposition device for high-speed coating can remove a coarse particle generated in the high-speed coating, prevent the rotation of steam, using a baffle inserted between a steam ejection opening and an exit of the cyclone filter, and thus obtain a coating layer having the excellent uniformity of coating.
    Type: Application
    Filed: December 14, 2016
    Publication date: January 17, 2019
    Inventors: Kyung Hoon NAM, Sang Joon KIM, Kyoung Pil KO, Tae Yeob KIM, Mun Jong EOM
  • Publication number: 20190001623
    Abstract: Provided are an alloy coating steel plate and a method of manufacturing the same, and in this case, the alloy coating steel plate includes a steel, and an Al—Mg—Si alloy layer positioned on the steel plate, wherein the Al—Mg—Si alloy layer is formed to include Mg—Si alloy grains in an alloy layer configured in an Al—Mg alloy phase.
    Type: Application
    Filed: December 23, 2016
    Publication date: January 3, 2019
    Applicants: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Ji Hoon YANG, Jae In JEONG, Yong Hwa JUNG, Tae Yeob KIM
  • Patent number: 10106866
    Abstract: An exemplary embodiment of the present invention provides a coated steel sheet on which a magnesium-aluminum alloy coating layer is formed, including: a steel sheet; and a coating layer configured to include a first magnesium-aluminum alloy layer formed on a top surface of the steel sheet and a second magnesium-aluminum alloy layer formed on a top surface of the first magnesium-aluminum alloy layer, wherein a magnesium content of the first magnesium-aluminum alloy layer is higher than that of the second magnesium-aluminum alloy layer.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: October 23, 2018
    Assignees: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Jae In Jeong, Ji Hoon Yang, Tae Yeob Kim, Yong Hwa Jung
  • 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: 20170369735
    Abstract: The present invention provides a chromium-free coating composition having high blackening resistance and corrosion resistance, the composition comprising: 20 to 70 wt % of waterborne silane modified polyurethane; 0.5 to 5 wt % of a hardener; 0.5 to 5 wt % of a blackening inhibitor; 0.5 to 5 wt % of a corrosion inhibitor; and 0.5 to 5 wt % of a lubricant, with the balance being a solvent. The chromium-free coating composition has the effect of improving blackening resistance, corrosion resistance, alkali resistance, solvent resistance and fingerprint resistance of a steel sheet on which a coating layer comprising the composition is formed.
    Type: Application
    Filed: December 22, 2015
    Publication date: December 28, 2017
    Inventors: Young-Jin KWAK, Tae-Yeob KIM, Dong-Yun KIM, Yong-Jin CHO, Myoung-Hee CHOI