Patents by Inventor Kyoung-Pil Ko

Kyoung-Pil Ko 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: 11028322
    Abstract: A composition for washing a pickled steel plate and a method for washing a pickled steel plate using the same are provided. The composition for washing a pickled steel plate includes a phosphoric acid ester compound, an amine-based compound, sodium carbonate, ammonium acetate, ethylene diamine tetraacetic acid (EDTA) and a remainder of water, and the method for washing a pickled steel plate is performed using the same.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: June 8, 2021
    Assignee: POSCO
    Inventors: Rho-Bum Park, Yon-Kyun Song, Ji-Hoon Park, Hoon Yun, Seok-Chan Choe, Kyoung-Pil Ko
  • 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: 20200270521
    Abstract: A composition for washing a pickled steel plate and a method for washing a pickled steel plate using the same are provided. The composition for washing a pickled steel plate includes a phosphoric acid ester compound, an amine-based compound, sodium carbonate, ammonium acetate, ethylene diamine tetraacetic acid (EDTA) and a remainder of water, and the method for washing a pickled steel plate is performed using the same.
    Type: Application
    Filed: December 19, 2016
    Publication date: August 27, 2020
    Inventors: Rho-Bum PARK, Yon-Kyun SONG, Ji-Hoon PARK, Hoon YUN, Seok-Chan CHOE, Kyoung-Pil KO
  • 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
  • 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
  • Patent number: 9683294
    Abstract: A conversion coating composition comprising 0.01 wt % to 0.2 wt % of phosphorous (P); 0.01 wt % to 0.2 wt % of magnesium (Mg); 0.005 wt % to 0.15 wt % of zirconium (Zr); 0.005 wt % to 0.15 wt % of titanium (Ti); 0.005 wt % to 0.15 wt % of vanadium (V); 0.05 wt % to 1 wt % of phenol resin; the balance of water and other unavoidable impurities is provided. A surface treated steel sheet comprising a base steel sheet; a zinc or zinc alloy plated layer formed on the base steel sheet; a blackening layer formed on the zinc or zinc alloy plated layer; and an organic and inorganic complex conversion coating layer formed on the blackening layer, wherein the organic and inorganic complex conversion coating layer may satisfy the weight ratio of P:Mg:Zr:Ti:V=1:0.045 to 2:0.035 to 1.5:0.035 to 1.3:0.035 to 1.5 (based on the weight of P) is also provided. A method for manufacturing a steel sheet treated with the conversion coating composition is also provided.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: June 20, 2017
    Assignee: POSCO
    Inventors: Yeon-Ho Kim, Young-Jin Kwak, Yon-Kyun Song, Yang-Ho Choi, Tae-Yeob Kim, Kyoung-Pil Ko, Chang-Hoon Choi, Jong-Sang Kim
  • Publication number: 20150299472
    Abstract: Provided are an organic-inorganic hybrid coating solution composition including 12 wt % to 36 wt % of a urethane-acryl hybrid resin, 8 wt % to 24 wt % of a nanosilicate-phenoxy hybrid resin, and 40 wt % to 80 wt % of an inorganic-based anti-corrosion agent based on a solid content, and an organic-inorganic hybrid coated steel sheet having a coating layer formed with the coating solution composition. A coating solution composition having excellent solution stability and a coated steel sheet having improved corrosion resistance, solvent resistance, and conductivity may be provided.
    Type: Application
    Filed: December 27, 2012
    Publication date: October 22, 2015
    Applicant: POSCO
    Inventors: Kyoung-Pil Ko, Rho-Bum Park, Jong-Sang Kim, Jung-Hwan Lee
  • Publication number: 20150218705
    Abstract: A conversion coating composition comprising 0.01 wt % to 0.2 wt % of phosphorous (P); 0.01 wt % to 0.2 wt % of magnesium (Mg); 0.005 wt % to 0.15 wt % of zirconium (Zr); 0.005 wt % to 0.15 wt % of titanium (Ti); 0.005 wt % to 0.15 wt % of vanadium (V); 0.05 wt % to 1 wt % of phenol resin; the balance of water and other unavoidable impurities is provided. A surface treated steel sheet comprising a base steel sheet; a zinc or zinc alloy plated layer formed on the base steel sheet; a blackening layer formed on the zinc or zinc alloy plated layer; and an organic and inorganic complex conversion coating layer formed on the blackening layer, wherein the organic and inorganic complex conversion coating layer may satisfy the weight ratio of P:Mg:Zr:Ti:V=1:0.045 to 2:0.035 to 1.5:0.035 to 1.3:0.035 to 1.5 (based on the weight of P) is also provided. A method for manufacturing a steel sheet treated with the conversion coating composition is also provided.
    Type: Application
    Filed: December 21, 2012
    Publication date: August 6, 2015
    Inventors: Yeon-Ho Kim, Young-Jin Kwak, Yon-Kyun Song, Yang-Ho Choi, Tae-Yeob Kim, Kyoung-Pil Ko, Chang-Hoon Choi, Jong-Sang Kim