Inventor

KOH SEONG-UNG

KR6 patents

⚠️ This page may combine multiple inventors who share the name “KOH SEONG-UNG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

POSCO

4 patents

US12339251B2Jun 24, 2025

Steel plate surface material property testing device and steel plate surface material property testing method

POSCO0 citations48

US11746401B2Sep 5, 2023

Steel sheet having excellent hydrogen induced cracking resistance and longitudinal strength uniformity, and manufacturing method therefor

POSCO0 citations45

US12037667B2Jul 16, 2024

High-strength steel having excellent resistance to sulfide stress cracking, and method for manufacturing same

POSCO0 citations44

US10801092B2Oct 13, 2020

Thick steel plate having excellent low-temperature toughness and hydrogen-induced cracking resistance, and method for manufacturing same

POSCO0 citations34

POSCO CO LTD

1 patent

US11649519B2May 16, 2023

Sour-resistant heavy-wall steel plate having excellent low-temperature toughness and post-heat treatment characteristics and method for manufacturing same

POSCO CO LTD0 citations45

KOH SEONG-UNG

1 patent

US9238849B2Jan 19, 2016

Steel sheet for an oil sand slurry pipe having excellent abrasion resistance, corrosion resistance, and low-temperature toughness and method for manufacturing same

KOH SEONG-UNG0 citations37