Inventor
SON WON-HO
KR15 patents
⚠️ This page may combine multiple inventors who share the name “SON WON-HO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
POSCO
8 patentsUS12194491B2Jan 14, 2025
Ternary hot-dip galvannealed steel sheet surface treatment solution composition for providing excellent blackening resistance and alkali resistance, ternary hot-dip galvannealed steel sheet surface-treated using same, and manufacturing method therefor
POSCO0 citations61
US11634818B2Apr 25, 2023
Solution composition containing trivalent chromium for surface treatment of steel sheet, galvanized steel sheet surface—treated with same, and method for manufacturing galvanized
POSCO0 citations61
US10822705B2Nov 3, 2020
Surface-treatment solution composition containing trivalent chromium and inorganic compound, zinc-based plated steel sheet surface-treated using same, and method for producing same
POSCO1 citations61
US12030082B2Jul 9, 2024
Bilayer composition for surface treatment of steel plate and surface-treated steel plate using same
POSCO0 citations58
US11939489B2Mar 26, 2024
Solution composition for surface treatment of steel sheet and surface-treated steel sheet using same
POSCO0 citations58
US12054643B2Aug 6, 2024
Composition for steel sheet surface coating and steel sheet surface-coated with same
POSCO0 citations57
US7922968B2Apr 12, 2011
Corrosion resistance improved steel sheet for automotive muffler and method of producing the steel sheet
POSCO2 citations57
US12325809B2Jun 10, 2025
Composition for surface treating of steel sheet, steel sheet using same, and manufacturing method of same
POSCO0 citations55
LG DISPLAY CO LTD
2 patentsPOSCO CO LTD
2 patentsUS12522734B2Jan 13, 2026
Surface treatment composition for ternary hot-dip galvannealed steel sheet, surface-treated ternary hot-dip galvannealed steel sheet using same, and preparation method thereof
POSCO CO LTD0 citations60
US12521757B2Jan 13, 2026
Bilayer composition for surface treatment of steel plate and surface-treated steel plate using same
POSCO CO LTD0 citations58