Inventor
KWAK YOUNG-JIN
KR25 patents
⚠️ This page may combine multiple inventors who share the name “KWAK YOUNG-JIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
POSCO
16 patentsUS11414743B2Aug 16, 2022
Multilayered zinc alloy plated steel material having excellent spot weldability and corrosion resistance
POSCO2 citations72
US9744743B2Aug 29, 2017
Zn—Mg alloy plated steel sheet, and method for manufacturing same
POSCO5 citations71
US12479192B2Nov 25, 2025
Zinc-based coated steel material having excellent corrosion resistance and spot weldability
POSCO0 citations62
US11203802B2Dec 21, 2021
Single layer zinc alloy plated steel material exhibiting excellent spot weldability and corrosion resistance, and fabrication method therefor
POSCO0 citations62
US10626504B2Apr 21, 2020
Plated steel sheet for hot press forming having excellent weldability and corrosion resistance, forming member, and manufacturing method thereof
POSCO1 citations62
US11649542B2May 16, 2023
Multi-layered zinc alloy plated steel having excellent spot weldability and corrosion resistance
POSCO0 citations60
US11208716B2Dec 28, 2021
Multi-layered zinc alloy plated steel having excellent spot weldability and corrosion resistance
POSCO0 citations60
US11192336B2Dec 7, 2021
Zinc alloy plated steel having excellent weldability and corrosion resistance
POSCO0 citations58
US12146215B2Nov 19, 2024
Plated steel plate having excellent glossiness and surface property, and method for manufacturing same
POSCO0 citations57
US10190221B2Jan 29, 2019
Plated steel sheet for hot press forming having excellent weldability and corrosion resistance, forming member, and manufacturing method thereof
POSCO0 citations52
US9982342B2May 29, 2018
Zn—Mg alloy-coated steel sheet with excellent blackening resistance and excellent adhesion
POSCO0 citations50
US9683294B2Jun 20, 2017
Conversion coating composition, surface treated steel sheet, and method for manufacturing the same
POSCO0 citations50
US9441302B2Sep 13, 2016
Method for manufacturing Zn—Mg alloy-coated steel sheet having high blackening resistance and coating adhesion
POSCO0 citations50
US10457834B2Oct 29, 2019
Chrome free coating composition having excellent blackening resistance and corrosion resistance, and surface-treated steel sheet
POSCO0 citations49
US9957619B2May 1, 2018
Phosphate solution for zinc or zinc-based alloy plated steel sheet, and zinc or zinc-based alloy plated steel sheet using the same
POSCO0 citations47
US10196736B2Feb 5, 2019
Heating apparatus, and coating device comprising same
POSCO0 citations40
NAM KYUNG-HOON
2 patentsRES INST IND SCIENCE & TECH
2 patentsUS6939623B2Sep 6, 2005
High strength steel plate having superior electromagnetic shielding and hot-dip galvanizing properties
RES INST IND SCIENCE & TECH1 citations60
US6893739B2May 17, 2005
Steel plate and a hot dip galvanizing steel plate having superior electric and magnetic shielding property
RES INST IND SCIENCE & TECH3 citations60
KWAK YOUNG-JIN
2 patentsUS9296903B2Mar 29, 2016
Film formation composition for preventing blackening of steel sheet, and steel sheet having film formed by composition
KWAK YOUNG-JIN0 citations45
US9382630B2Jul 5, 2016
Zinc alloy coated steel sheet having good sealer adhesion and corrosion resistance and process of manufacturing the same
KWAK YOUNG-JIN1 citations44