Patents by Inventor Suk Kyu LEE

Suk Kyu LEE 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: 20240052495
    Abstract: The present disclosure relates to an aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and a method for manufacturing the same, and more particularly, to an aluminum alloy-plated steel sheet that prevents microcracks generated during hot forming and has excellent seizure resistance and corrosion resistance, and a method for manufacturing the same.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 15, 2024
    Applicant: POSCO
    Inventors: Suk-Kyu Lee, Hyeon-Seok Hwang, Myung-Soo Kim, Jong-Gi Oh, Kwang-Tai Min
  • Patent number: 11897229
    Abstract: The present disclosure relates to an aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and a method for manufacturing the same, and more particularly, to an aluminum alloy-plated steel sheet preventing microcracks generated during hot forming and has excellent seizure resistance and corrosion resistance, and a method for manufacturing the same.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: February 13, 2024
    Assignee: POSCO
    Inventors: Suk-Kyu Lee, Hyeon-Seok Hwang, Myung-Soo Kim
  • Patent number: 11898252
    Abstract: The present disclosure relates to an aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and a method for manufacturing the same, and more particularly, to an aluminum alloy-plated steel sheet preventing microcracks generated during hot forming and has excellent seizure resistance and corrosion resistance, and a method for manufacturing the same.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: February 13, 2024
    Assignee: POSCO
    Inventors: Suk-Kyu Lee, Hyeon-Seok Hwang, Myung-Soo Kim, Kwang-Tai Min, Dae-Young Kang
  • Publication number: 20240043954
    Abstract: One embodiment of the present invention provides a high-strength hot-dip galvanized steel sheet having excellent coatability and a manufacturing method therefor, the hot-dip galvanized steel sheet having a base steel sheet and a hot-dip galvanized layer formed on one or both surfaces of the base steel sheet, wherein the base steel sheet comprises an internal oxide layer comprising, by weight %, carbon (C): 0.1% to 0.3%, silicon (Si): 0.1% to 2.0%, aluminum (Al): 0.1% to 1.5%, manganese (Mn): 1.5% to 3.0%, and the balance being Fe and unavoidable impurities, wherein the sum of Si and Al satisfies 1.2% to 3.5%, the ratio of Al and Si (Al/Si) satisfies 0.5 to 2.0, the surface roughness (Ra) of the base steel sheet is 0.5 or more, and the thickness directly under the surface of the base steel sheet is less than 4 ?m.
    Type: Application
    Filed: December 9, 2021
    Publication date: February 8, 2024
    Applicant: POSCO Co., Ltd
    Inventors: Young-Ha Kim, Suk-Kyu Lee, Tae-Kyo Han, Dae-Young Kang
  • Publication number: 20240026514
    Abstract: Provided is an aluminum coated steel sheet having excellent anti-corrosion properties and weldability, and a manufacturing method thereof. The aluminum coated steel sheet includes: an austenitic base steel sheet including at least 70 area % of an austenite microstructure; and an aluminum coating layer formed on the base steel sheet, wherein the base steel sheet includes at least 80 area % of ferrite in a surface layer portion, which denotes a region extending from the interface with the coating layer to a depth of 100 ?m into the base steel sheet, and the aluminum coating layer may have a composition comprising 2-12 wt % of Si, 5-30 wt % of Zn, and 0.1-5 wt % of Mn, with the balance being Al and inevitable impurities.
    Type: Application
    Filed: December 15, 2021
    Publication date: January 25, 2024
    Inventors: Suk-Kyu LEE, Jong-Gi OH, Myung-Soo KIM
  • Patent number: 11770271
    Abstract: A data center includes: a server including a control plane; a data plane that is configured to receive network connection information from the control plane; and a storage group including a plurality of first storage devices. The data plane may be configured to set connections between the server and the plurality of first storage devices based on the network connection information corresponding to each first storage device of the plurality of first storage devices.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: September 26, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Suk Kyu Lee, Dae-In Kang, Woong Hee Lee
  • Patent number: 11753709
    Abstract: Provided are a hot-dipped galvanized steel material and a method for manufacturing the same. The hot-dipped galvanized steel material comprises an iron substrate and a hot-dipped galvanizing layer formed on the iron substrate, wherein the hot-dipped galvanizing layer comprises, by wt %, 0.01 to 0.5% of Al, 0.01 to 1.5% of Mg, 0.05 to 1.5% of Mn, 0.1 to 6% of Fe, and the balance of Zn and inevitable impurities, with a Zn—Fe—Mn based alloy phase present at the interface between the iron substrate and the hot-dipped galvanizing layer, and an area ratio of the Zn—Fe—Mn-based alloy phase to the hot-dipped galvanizing layer ranging from 1 to 60%.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: September 12, 2023
    Assignee: POSCO CO., LTD
    Inventors: Suk-Kyu Lee, Sang-Heon Kim, Kwang-Tai Min, Yon-Kyun Song
  • Publication number: 20230026159
    Abstract: The present disclosure relates to an aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and a method for manufacturing the same, and more particularly, to an aluminum alloy-plated steel sheet preventing microcracks generated during hot forming and has excellent seizure resistance and corrosion resistance, and a method for manufacturing the same.
    Type: Application
    Filed: December 18, 2020
    Publication date: January 26, 2023
    Applicant: POSCO
    Inventors: Suk-Kyu LEE, Hyeon-Seok HWANG, Myung-Soo KIM, Kwang-Tai MIN, Dae-Young KANG
  • Publication number: 20230019519
    Abstract: The present disclosure relates to an aluminum-based alloy-coated steel sheet and a method of manufacturing the same and, more particularly, to an aluminum-based alloy-coated steel sheet that can be preferably applied to automotive steel sheets, etc., and a method of manufacturing the same. An embodiment of the present disclosure provides an aluminum-based alloy-coated steel sheet that includes: a base steel sheet; an Al-based alloy-coated layer formed on at least one surface of the base steel sheet; and a Zn-Al-based coated layer formed on the Al-based alloy-coated layer, including Al: 0.5˜1.0%, and a balance of Zn and unavoidable impurities in percentage by weight, and having an adhesion amount of 3˜12 g/m2, and a method of manufacturing the aluminum-based alloy-coated steel sheet.
    Type: Application
    Filed: December 1, 2020
    Publication date: January 19, 2023
    Applicant: POSCO
    Inventors: Woo-Sung Jung, Sang-Hoon Park, Suk-Kyu Lee
  • Publication number: 20230012544
    Abstract: The present disclosure relates to an aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and a method for manufacturing the same, and more particularly, to an aluminum alloy-plated steel sheet preventing microcracks generated during hot forming and has excellent seizure resistance and corrosion resistance, and a method for manufacturing the same.
    Type: Application
    Filed: December 18, 2020
    Publication date: January 19, 2023
    Applicant: POSCO
    Inventors: Suk-Kyu Lee, Hyeon-Seok Hwang, Myung-Soo Kim
  • Patent number: 11530470
    Abstract: Provided is a highly corrosion-resistant plated steel sheet having plating adhesion and resistance to liquid metal embrittlement. A highly corrosion-resistant plated steel sheet comprises a base steel sheet and a plated layer, which sequentially comprises an Fe—Al alloy layer and an MgZn2 layer from an interface with the base steel sheet.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: December 20, 2022
    Assignee: POSCO CO., LTD
    Inventors: Il-Jeong Park, Myung-Soo Kim, Suk-Kyu Lee
  • Publication number: 20220372608
    Abstract: Embodiments of the present disclosure provides an aluminum alloy-plated steel sheet having high surface quality and weldability, a hot-formed member, and methods for manufacturing the aluminum alloy-plated steel sheet and the hot-formed member. The aluminum alloy-plated steel sheet includes: a base steel sheet; and an aluminum alloy plating layer formed on the base steel sheet, wherein the aluminum alloy plating layer includes, by weight %, Zn: 21% to 35%, Si: 1% to 6.9%, Fe: 2% to 12%, and the balance of Al and inevitable impurities.
    Type: Application
    Filed: December 11, 2020
    Publication date: November 24, 2022
    Applicant: POSCO
    Inventors: Hyeon-Seok Hwang, Suk-Kyu Lee, Jong-Gi Oh, Kwang-Tai Min, Dong-Seok Shin
  • Publication number: 20220060354
    Abstract: A data center includes: a server including a control plane; a data plane that is configured to receive network connection information from the control plane; and a storage group including a plurality of first storage devices. The data plane may be configured to set connections between the server and the plurality of first storage devices based on the network connection information corresponding to each first storage device of the plurality of first storage devices.
    Type: Application
    Filed: May 6, 2021
    Publication date: February 24, 2022
    Inventors: Suk Kyu LEE, Dae-In KANG, Woong Hee LEE
  • Publication number: 20210348257
    Abstract: Provided are an aluminum-zinc alloy plated steel sheet having excellent hot workability and corrosion resistance, and a method for manufacturing same. The plated steel sheet has an Al—Zn hot-dip aluminized coating layer on a base steel sheet, wherein: the coating layer is composed of a lower layer part and an upper layer part; the lower layer part comprises 40-50% of Fe, 50-60% of Al, 1% or less of Si, and other unavoidable impurities, on the basis of wt % of the lower layer part itself; the upper layer part comprises 10-30% of Zn, the balance of Al, and 0.05% or less of at least one of Cr, Mo, and Ni as an impurity, on the basis of wt % of the upper layer part itself; and the thickness of the upper layer part accounts for 30% or less of the total thickness of the coating layer.
    Type: Application
    Filed: August 23, 2019
    Publication date: November 11, 2021
    Inventors: Suk-Kyu LEE, Il-Jeong PARK, Myung-Soo KIM
  • Publication number: 20210340650
    Abstract: Provided is a highly corrosion-resistant plated steel sheet having plating adhesion and resistance to liquid metal embrittlement. A highly corrosion-resistant plated steel sheet comprises a base steel sheet and a plated layer, which sequentially comprises an Fe—Al alloy layer and an MgZn2 layer from an interface with the base steel sheet.
    Type: Application
    Filed: September 20, 2019
    Publication date: November 4, 2021
    Inventors: Il-Jeong PARK, Myung-Soo KIM, Suk-Kyu LEE
  • Patent number: 10982309
    Abstract: Disclosed are a hot-rolled galvanized steel sheet having excellent galling resistance and formability, and a method for manufacturing the same. The hot-rolled galvanized steel sheet, includes: a base steel; and a hot-rolled galvanizing layer formed on the surface of the base steel, wherein the hot-rolled galvanizing layer provides a hot-rolled galvanized steel sheet having a Mn crystallite having a size of 10 ?m or less between the resin dendrites of zinc that form sequins.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: April 20, 2021
    Assignee: POSCO
    Inventors: Sang-Heon Kim, Hyeon-Seok Hwang, Suk-Kyu Lee, Sun-Ho Jeon, Yon-Kyun Song, Bong-Hwan Yoo
  • Publication number: 20200017946
    Abstract: Provided are a hot-dipped galvanized steel material and a method for manufacturing the same. The hot-dipped galvanized steel material comprises an iron substrate and a hot-dipped galvanizing layer formed on the iron substrate, wherein the hot-dipped galvanizing layer comprises, by wt %, 0.01 to 0.5% of Al, 0.01 to 1.5% of Mg, 0.05 to 1.5% of Mn, 0.1 to 6% of Fe, and the balance of Zn and inevitable impurities, with a Zn—Fe—Mn based alloy phase present at the interface between the iron substrate and the hot-dipped galvanizing layer, and an area ratio of the Zn—Fe—Mn-based alloy phase to the hot-dipped galvanizing layer ranging from 1 to 60%.
    Type: Application
    Filed: December 21, 2017
    Publication date: January 16, 2020
    Inventors: Suk-Kyu LEE, Sang-Heon KIM, Kwang-Tai MIN, Yon-Kyun SONG
  • Publication number: 20190194792
    Abstract: Disclosed are a hot-rolled galvanized steel sheet having excellent galling resistance and formability, and a method for manufacturing the same. The hot-rolled galvanized steel sheet, includes: a base steel; and a hot-rolled galvanizing layer formed on the surface of the base steel, wherein the hot-rolled galvanizing layer provides a hot-rolled galvanized steel sheet having a Mn crystallite having a size of 10 ?m or less between the resin dendrites of zinc that form sequins.
    Type: Application
    Filed: August 22, 2017
    Publication date: June 27, 2019
    Inventors: Sang-Heon KIM, Hyeon-Seok HWANG, Suk-Kyu LEE, Sun-Ho JEON, Yon-Kyun SONG, Bong-Hwan YOO
  • Patent number: 10230450
    Abstract: The present invention relates to a method for controlling hand-over in a drone network.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: March 12, 2019
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Hwang Nam Kim, Seung Ho Yoo, Kang Ho Kim, Albert Yong Joon Chung, Ji Yeon Lee, Suk Kyu Lee, Jong Tack Jung
  • Patent number: 10116511
    Abstract: A method and an electronic device for controlling a topology are provided. The method includes forming a star topology by directly connecting the electronic device to at least one node, and transmitting and receiving signals with neighboring nodes including the at least one node and determining whether to form the star topology or an extended star topology with the neighboring nodes based on a result of the transmitting and receiving, wherein the star topology is a topology in which the electronic device is directly connected to the neighboring nodes, and wherein the extended star topology is a topology in which the electronic device is directly connected to the neighboring nodes via an already connected node.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: October 30, 2018
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Chi-Hong Cho, Hwangnam Kim, Kangho Kim, Hwantae Kim, Mungyu Bae, Suk Kyu Lee