Patents by Inventor Young-Jin Kwak

Young-Jin Kwak 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: 11943994
    Abstract: A display device and a method of manufacturing the same are provided. The display device, comprises a first base substrate, a first barrier layer disposed on the first base substrate, a second base substrate disposed on the first barrier layer, at least one transistor disposed on the second base substrate, and an organic light emitting diode disposed on the at least one transistor, wherein the first barrier layer includes a silicon oxide, and has an adhesion force of 200 gf/inch or more to the second base substrate.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: March 26, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chul Min Bae, Eun Jin Kwak, Jin Suk Lee, Jung Yun Jo, Ji Hye Han, Young In Hwang
  • Patent number: 11930361
    Abstract: A method of a wearable device displaying icons is provided. The method includes displaying a plurality of circular icons comprising a first circular icon located in a center area of a touch display in a first size and a second circular icon located outside of the center area of the touch display in a second size smaller than the first size, and based on a direction of a touch input received on the touch display, moving the plurality of circular icons such that the first circular icon is moved to a first position located outside of the center area of the touch display and the second circular icon is moved from a second position located outside the center area of the touch display to the center area of the touch display and enlarged in size from the second size to the first size.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: March 12, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-kyu Seo, Young-joon Choi, Ji-yeon Kwak, Hyun-jin Kim, Yeo-jun Yoon
  • Patent number: 11649542
    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: Grant
    Filed: November 18, 2021
    Date of Patent: May 16, 2023
    Assignee: POSCO CO., LTD
    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: 20230030466
    Abstract: The present disclosure relates to a zinc-based coated steel material having excellent corrosion resistance and spot weldability and, more particularly, to a zinc-based coated steel material plated with a multilayer zinc alloy, which has two or more layers, and having excellent corrosion resistance and spot weldability. A zinc-based coated steel material according to an aspect of the present disclosure includes: a base steel; and a multilayer zinc-based plating layer composed of two or more discriminated plating layers, in which the multilayer zinc-based plating layer may include Mg of 0.12˜0.64 percent by weight.
    Type: Application
    Filed: December 3, 2020
    Publication date: February 2, 2023
    Applicant: POSCO
    Inventors: Young-Jin Kwak, Woo-Sung Jung
  • Patent number: 11414743
    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: Grant
    Filed: December 13, 2018
    Date of Patent: August 16, 2022
    Assignee: POSCO
    Inventors: Young-Jin Kwak, Woo-Sung Jung, Tae-Yeob Kim
  • Publication number: 20220074040
    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: November 18, 2021
    Publication date: March 10, 2022
    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: 20220042163
    Abstract: Provided is a plated steel plate used for interior materials and exterior materials such as home appliances, construction materials, vehicles, etc., and a method for manufacturing same. The plated sheet plate includes: base steel; a Zn—Mg plating layer formed on the base steel; and a UV-curable film layer formed on the Zn—Mg plating layer, wherein a hairline pattern is formed on a surface of the Zn—Mg plating layer, and the Zn—Mg plating layer includes 8 to 27 weight % of Mg and a balance of Zn and inevitable impurities.
    Type: Application
    Filed: November 27, 2019
    Publication date: February 10, 2022
    Inventors: Hyeon-Soop HAN, Young-Jin KWAK, Tae-Yeob KIM, Jin-Tae KIM
  • Publication number: 20220025508
    Abstract: Provided is a coated steel sheet which can be used in vehicles, home appliances, construction materials, and the like, and more specifically, to a heterogeneous coated steel sheet having a zinc coating layer formed on one surface thereof and a zinc-magnesium coating layer formed on the other surface thereof. The heterogeneous coated steel sheet includes: a steel sheet; a zinc coating layer attached to one side of the steel sheet; and a zinc-magnesium alloy coating layer attached to the other side of the steel sheet, wherein a coating adhesion amount of the zinc coating layer is 5 to 60 g/m2, a coating adhesion amount of the zinc-magnesium alloy coating layer is 10 to 40 g/m2, and a magnesium content of the zinc-magnesium alloy coating layer is 8 to 30 wt %.
    Type: Application
    Filed: December 19, 2019
    Publication date: January 27, 2022
    Inventors: Young-Jin KWAK, Woo-Sung JUNG, Hyeon-Soop HAN, Kyoung-Pil KO, Tae-Yeob KIM
  • Patent number: 11208716
    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: Grant
    Filed: December 22, 2017
    Date of Patent: December 28, 2021
    Assignee: POSCO
    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: 11203802
    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: Grant
    Filed: December 21, 2017
    Date of Patent: December 21, 2021
    Assignee: POSCO
    Inventors: Young-Jin Kwak, Tae-Yeob Kim
  • Patent number: 11192336
    Abstract: Provided are a zinc alloy plated steel and a method for manufacturing same, the zinc alloy plated steel comprising: a base iron; a Zn plated layer formed on top of the base iron; and a Zn—Mg alloy layer formed on top of the Zn plated layer and obtained through mutual diffusion of Zn and Mg, wherein the ratio of the weight of Mg contained in the Zn—Mg alloy layer with respect to the total weight of the Zn plated layer and the Zn—Mg alloy layer is 0.13 to 0.24, and the sum of the adhesion quantity of the Zn layer and the Zn—Mg alloy layer is no more than 40 g/m2 (more than 0 g/m2).
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: December 7, 2021
    Assignee: POSCO
    Inventors: Young-Jin Kwak, Du-Youl Choi
  • 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
  • Patent number: 10626504
    Abstract: The present invention relates to a plated steel sheet for hot press forming, a hot-press forming member manufactured using the same, and a manufacturing method thereof. The plated steel sheet comprises: a base steel sheet and a composite plated layer that is formed on at least one surface of the base steel sheet, and has a Mn-based plated layer and an Al-based plated layer alternately formed therein, an Al-based plated layer being formed on the uppermost layer thereof, wherein the composite plated layer has a total thickness of 5 to 30 ?m, and in this case, the Mn-based plated layer accounts for 5 to 60% of the total thickness.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: April 21, 2020
    Assignee: POSCO
    Inventors: Myung-Soo Kim, Hyeon-Seok Hwang, Young-Jin Kwak
  • 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: 20190366687
    Abstract: Provided are a zinc alloy plated steel and a method for manufacturing same, the zinc alloy plated steel comprising: a base iron; a Zn plated layer formed on top of the base iron; and a Zn—Mg alloy layer formed on top of the Zn plated layer and obtained through mutual diffusion of Zn and Mg, wherein the ratio of the weight of Mg contained in the Zn—Mg alloy layer with respect to the total weight of the Zn plated layer and the Zn—Mg alloy layer is 0.13 to 0.24, and the sum of the adhesion quantity of the Zn layer and the Zn—Mg alloy layer is no more than 40 g/m2 (more than 0 g/m2).
    Type: Application
    Filed: December 21, 2017
    Publication date: December 5, 2019
    Inventors: Young-Jin KWAK, Du-Youl CHOI
  • 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: 20190136386
    Abstract: The present invention relates to a plated steel sheet for hot press forming, a hot-press forming member manufactured using the same, and a manufacturing method thereof. The plated steel sheet comprises: a base steel sheet and a composite plated layer that is formed on at least one surface of the base steel sheet, and has a Mn-based plated layer and an Al-based plated layer alternately formed therein, an Al-based plated layer being formed on the uppermost layer thereof, wherein the composite plated layer has a total thickness of 5 to 30 ?m, and in this case, the Mn-based plated layer accounts for 5 to 60% of the total thickness.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Inventors: Myung-Soo KIM, Hyeon-Seok HWANG, Young-Jin KWAK
  • 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
  • Patent number: 10190221
    Abstract: The present invention relates to a plated steel sheet for hot press forming, a hot-press forming member manufactured using the same, and a manufacturing method thereof. The plated steel sheet comprises: a base steel sheet and a composite plated layer that is formed on at least one surface of the base steel sheet, and has a Mn-based plated layer and an Al-based plated layer alternately formed therein, an Al-based plated layer being formed on the uppermost layer thereof, wherein the composite plated layer has a total thickness of 5 to 30 ?m, and in this case, the Mn-based plated layer accounts for 5 to 60% of the total thickness.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: January 29, 2019
    Assignee: POSCO
    Inventors: Myung-Soo Kim, Hyeon-Seok Hwang, Young-Jin Kwak