Inventor
KANG KI-CHEOL
KR14 patents
⚠️ This page may combine multiple inventors who share the name “KANG KI-CHEOL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
POSCO
9 patentsUS10344361B2Jul 9, 2019
Ultra-high strength, hot-dip galvanized steel sheet having excellent surface quality and coating adhesion
POSCO2 citations72
US12000008B2Jun 4, 2024
Advanced high strength zinc plated steel sheet having excellent surface quality and electrical resistance spot weldability
POSCO2 citations71
US11981973B2May 14, 2024
Zinc plated steel sheet having excellent fatigue strength of electrical resistance spot welds, and manufacturing method thereof
POSCO2 citations70
US11299793B2Apr 12, 2022
Steel sheet having excellent resistance to liquid metal embrittlement cracks and method for manufacturing the same
POSCO2 citations70
US12054801B2Aug 6, 2024
Zinc plated steel sheet having excellent surface quality and spot weldability, and manufacturing method therefor
POSCO2 citations68
US12344923B2Jul 1, 2025
Zinc plated steel sheet having excellent spot weldability and manufacturing method thereof
POSCO0 citations60
US11090907B2Aug 17, 2021
Hot dip aluminized steel material having excellent corrosion resistance and workability, and manufacturing method therefor
POSCO0 citations60
US10900097B2Jan 26, 2021
High-strength hot-dip galvanized steel sheet having excellent surface quality and spot weldability
POSCO0 citations50
US10793936B2Oct 6, 2020
High strength galvanized steel sheet having excellent surface qualities, plating adhesion, and formability, and method for manufacturing same
POSCO0 citations41
POSCO CO LTD
5 patentsUS12371770B2Jul 29, 2025
High-strength hot-dip galvanized steel sheet having excellent surface quality and electric resistance spot weldability, and manufacturing method therefor
POSCO CO LTD0 citations61
US12486553B2Dec 2, 2025
Zinc plated steel sheet having excellent fatigue strength of electrical resistance spot welds, and manufacturing method thereof
POSCO CO LTD0 citations59
US12559814B2Feb 24, 2026
High-strength hot-dip galvanized steel sheet having excellent surface quality and spot weldability, and manufacturing method therefor
POSCO CO LTD0 citations55
US12331405B2Jun 17, 2025
High-strength hot-dipped galvanized steel sheet having excellent surface quality and spot weldability, and manufacturing method therefor
POSCO CO LTD0 citations46
US12221701B2Feb 11, 2025
Welded member of galvanized steel sheets
POSCO CO LTD0 citations43