Jai-Hyun Kwak

Person

Gwangyang-si, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Method for preventing spot welding crack of galvanized steel plate
- Patent number 12,194,560
- Issue date Jan 14, 2025
- POSCO Co., Ltd
- Jai-Hyun Kwak
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High-strength cold rolled steel sheet and galvannealed steel sheet...
- Patent number 12,180,571
- Issue date Dec 31, 2024
- POSCO Co., Ltd
- Hang-Sik Cho
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
High-strength cold rolled steel sheet having high hole expansion ra...
- Patent number 11,753,693
- Issue date Sep 12, 2023
- POSCO Co., Ltd
- Young-Roc Im
- C21 - METALLURGY OF IRON
Information Patent Grant
High strength cold-rolled steel sheet and hot-dip galvanized steel...
- Patent number 11,091,818
- Issue date Aug 17, 2021
- Posco
- Jai-Hyun Kwak
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of continuously annealing a strip
- Patent number 10,604,820
- Issue date Mar 31, 2020
- Posco
- Jai-Hyun Kwak
- C21 - METALLURGY OF IRON
Information Patent Grant
High-strength cold rolled steel sheet having excellent ductility, h...
- Patent number 10,519,526
- Issue date Dec 31, 2019
- POSCO
- Kyoo-Young Lee
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Apparatus for continuous annealing of strip and method for continuo...
- Patent number 10,358,691
- Issue date Jul 23, 2019
- Posco
- Jai-Hyun Kwak
- C21 - METALLURGY OF IRON
Information Patent Grant
Lightweight steel sheet having excellent strength and ductility and...
- Patent number 10,273,556
- Issue date Apr 30, 2019
- POSCO
- Jai-Hyun Kwak
- C21 - METALLURGY OF IRON
Information Patent Grant
Ferritic lightweight high-strength steel sheet having excellent sti...
- Patent number 9,856,542
- Issue date Jan 2, 2018
- Posco
- Jai-Hyun Kwak
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Austenitic, lightweight, high-strength steel sheet having high yiel...
- Patent number 9,738,958
- Issue date Aug 22, 2017
- Posco
- Kwang-Geun Chin
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
High strength thin steel sheet for the superior press formability a...
- Patent number 9,598,753
- Issue date Mar 21, 2017
- Posco
- Jai Hyun Kwak
- C21 - METALLURGY OF IRON
Information Patent Grant
High strength thin steel sheet for the superior press formability a...
- Patent number 9,194,030
- Issue date Nov 24, 2015
- Posco
- Jai Hyun Kwak
- C21 - METALLURGY OF IRON
Information Patent Grant
High strength steel sheet and hot dip galvanized steel sheet having...
- Patent number 9,109,273
- Issue date Aug 18, 2015
- Posco
- Young Hoon Jin
- C21 - METALLURGY OF IRON
Information Patent Grant
Low specific gravity and high strength steel sheets with excellent...
- Patent number 8,778,097
- Issue date Jul 15, 2014
- Posco
- Kwang Geun Chin
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for manufacturing an ultrahigh strength hot dip galvanized s...
- Patent number 8,741,078
- Issue date Jun 3, 2014
- POSTECH Academy-Industry Foundation
- Tae-Jin Song
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACUTRING A HIGH-STRENGTH COLD ROLLED STEEL SHEET HAV...
- Publication number 20230340633
- Publication date Oct 26, 2023
- Young-Roc IM
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH COLD ROLLED STEEL SHEET AND GALVANNEALED STEEL SHEET...
- Publication number 20220056563
- Publication date Feb 24, 2022
- POSCO
- Hang-Sik CHO
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
HIGH-STRENGTH COLD ROLLED STEEL SHEET HAVING HIGH HOLE EXPANSION RA...
- Publication number 20220033926
- Publication date Feb 3, 2022
- POSCO
- Young-Roc IM
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PREVENTING SPOT WELDING CRACK OF GALVANIZED STEEL PLATE
- Publication number 20210170516
- Publication date Jun 10, 2021
- POSCO
- Jai-Hyun Kwak
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
HIGH STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT YIELD STRENG...
- Publication number 20200190612
- Publication date Jun 18, 2020
- POSCO
- Jai-Hyun KWAK
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF CONTINUOUSLY ANNEALING A STRIP
- Publication number 20190276913
- Publication date Sep 12, 2019
- POSCO
- Jai-Hyun KWAK
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
HIGH STRENGTH COLD-ROLLED STEEL SHEET AND HOT- DIP GALVANIZED STEEL...
- Publication number 20180371569
- Publication date Dec 27, 2018
- POSCO
- Jai-Hyun KWAK
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT DUCTILITY, H...
- Publication number 20170051378
- Publication date Feb 23, 2017
- POSCO
- Kyoo-Young LEE
- B32 - LAYERED PRODUCTS
Information Patent Application
APPARATUS FOR CONTINUOUS ANNEALING OF STRIP AND METHOD FOR CONTINUO...
- Publication number 20160355903
- Publication date Dec 8, 2016
- POSCO
- Jai-Hyun KWAK
- C21 - METALLURGY OF IRON
Information Patent Application
LIGHTWEIGHT STEEL SHEET HAVING EXCELLENT STRENGTH AND DUCTILITY AND...
- Publication number 20160312332
- Publication date Oct 27, 2016
- POSCO
- Jai-Hyun KWAK
- C21 - METALLURGY OF IRON
Information Patent Application
High Strength Thin Steel Sheet for the Superior Press Formability a...
- Publication number 20160040275
- Publication date Feb 11, 2016
- POSCO
- Jai Hyun Kwak
- C21 - METALLURGY OF IRON
Information Patent Application
Ferritic Lightweight High-Strength Steel Sheet Having Excellent Sti...
- Publication number 20150218668
- Publication date Aug 6, 2015
- POSCO
- Jai-Hyun Kwak
- B32 - LAYERED PRODUCTS
Information Patent Application
Austenitic, Lightweight, High-Strength Steel Sheet Having High Yiel...
- Publication number 20130295409
- Publication date Nov 7, 2013
- POSCO
- Kwang-Geun Chin
- B32 - LAYERED PRODUCTS
Information Patent Application
Steel Sheet for Formed Member Having Enhanced Ductility, Formed Mem...
- Publication number 20130295402
- Publication date Nov 7, 2013
- POSCO
- Jin-Keun Oh
- C21 - METALLURGY OF IRON
Information Patent Application
ULTRAHIGH STRENGTH HOT DIP GALVANIZED STEEL SHEET HAVING MARTENSITI...
- Publication number 20110168301
- Publication date Jul 14, 2011
- POSTECH ACADEMY-INDUSTRY FOUNDATION
- Tae-Jin Song
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
High Strength Steel Sheet and Hot Dip Galvanized Steel Sheet Having...
- Publication number 20110083774
- Publication date Apr 14, 2011
- POSCO
- Young Hoon Jin
- C21 - METALLURGY OF IRON
Information Patent Application
High-Strength Steel Sheet with Excellent Ductility and Crackless Ed...
- Publication number 20110064968
- Publication date Mar 17, 2011
- POSCO
- Sung-Il Kim
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH STRENGTH THIN STEEL SHEET FOR THE SUPERIOR PRESS FORMABILITY A...
- Publication number 20110030857
- Publication date Feb 10, 2011
- POSCO
- Jai Hyun Kwak
- C21 - METALLURGY OF IRON
Information Patent Application
LOW SPECIFIC GRAVITY AND HIGH STRENGTH STEEL SHEETS WITH EXCELLENT...
- Publication number 20090297387
- Publication date Dec 3, 2009
- POSCO
- Kwang Geun Chin
- C21 - METALLURGY OF IRON

Jai-Hyun Kwak

Person

Patents Grantslast 30 patents

Method for preventing spot welding crack of galvanized steel plate

High-strength cold rolled steel sheet and galvannealed steel sheet...

High-strength cold rolled steel sheet having high hole expansion ra...

High strength cold-rolled steel sheet and hot-dip galvanized steel...

Method of continuously annealing a strip

High-strength cold rolled steel sheet having excellent ductility, h...

Apparatus for continuous annealing of strip and method for continuo...

Lightweight steel sheet having excellent strength and ductility and...

Ferritic lightweight high-strength steel sheet having excellent sti...

Austenitic, lightweight, high-strength steel sheet having high yiel...

High strength thin steel sheet for the superior press formability a...

High strength thin steel sheet for the superior press formability a...

High strength steel sheet and hot dip galvanized steel sheet having...

Low specific gravity and high strength steel sheets with excellent...

Method for manufacturing an ultrahigh strength hot dip galvanized s...

Patents Applicationslast 30 patents

METHOD OF MANUFACUTRING A HIGH-STRENGTH COLD ROLLED STEEL SHEET HAV...

HIGH-STRENGTH COLD ROLLED STEEL SHEET AND GALVANNEALED STEEL SHEET...

HIGH-STRENGTH COLD ROLLED STEEL SHEET HAVING HIGH HOLE EXPANSION RA...

METHOD FOR PREVENTING SPOT WELDING CRACK OF GALVANIZED STEEL PLATE

HIGH STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT YIELD STRENG...

METHOD OF CONTINUOUSLY ANNEALING A STRIP

HIGH STRENGTH COLD-ROLLED STEEL SHEET AND HOT- DIP GALVANIZED STEEL...

HIGH-STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT DUCTILITY, H...

APPARATUS FOR CONTINUOUS ANNEALING OF STRIP AND METHOD FOR CONTINUO...

LIGHTWEIGHT STEEL SHEET HAVING EXCELLENT STRENGTH AND DUCTILITY AND...

High Strength Thin Steel Sheet for the Superior Press Formability a...

Ferritic Lightweight High-Strength Steel Sheet Having Excellent Sti...

Austenitic, Lightweight, High-Strength Steel Sheet Having High Yiel...

Steel Sheet for Formed Member Having Enhanced Ductility, Formed Mem...

ULTRAHIGH STRENGTH HOT DIP GALVANIZED STEEL SHEET HAVING MARTENSITI...

High Strength Steel Sheet and Hot Dip Galvanized Steel Sheet Having...

High-Strength Steel Sheet with Excellent Ductility and Crackless Ed...

HIGH STRENGTH THIN STEEL SHEET FOR THE SUPERIOR PRESS FORMABILITY A...

LOW SPECIFIC GRAVITY AND HIGH STRENGTH STEEL SHEETS WITH EXCELLENT...