Seong-Ung Koh

Person

Pohang-si, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Steel plate surface material property testing device and steel plat...
- Patent number 12,339,251
- Issue date Jun 24, 2025
- Posco
- Ju-Seung Lee
- G01 - MEASURING TESTING
Information Patent Grant
High-strength steel having excellent resistance to sulfide stress c...
- Patent number 12,037,667
- Issue date Jul 16, 2024
- POSCO Co., Ltd
- Seong-Ung Koh
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel sheet having excellent hydrogen induced cracking resistance a...
- Patent number 11,746,401
- Issue date Sep 5, 2023
- POSCO Co., Ltd
- Seong-Ung Koh
- C21 - METALLURGY OF IRON
Information Patent Grant
Sour-resistant heavy-wall steel plate having excellent low-temperat...
- Patent number 11,649,519
- Issue date May 16, 2023
- POSCO Co., Ltd
- Seong-Ung Koh
- C21 - METALLURGY OF IRON
Information Patent Grant
Thick steel plate having excellent low-temperature toughness and hy...
- Patent number 10,801,092
- Issue date Oct 13, 2020
- POSCO
- Seong-Ung Koh
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel sheet for an oil sand slurry pipe having excellent abrasion r...
- Patent number 9,238,849
- Issue date Jan 19, 2016
- Posco
- Seong-Ung Koh
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
ELECTROMAGNETIC INSPECTION DEVICE CAPABLE OF CALIBRATION
- Publication number 20240027399
- Publication date Jan 25, 2024
- POSCO Co., Ltd
- Ju-Seung Lee
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
STEEL SHEET HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE A...
- Publication number 20230357907
- Publication date Nov 9, 2023
- POSCO CO., LTD.
- Seong-Ung Koh
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL HAVING EXCELLENT SULFIDE STRESS CORROSION CRACKING R...
- Publication number 20230026210
- Publication date Jan 26, 2023
- POSCO
- Seong-Ung Koh
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL PLATE SURFACE MATERIAL PROPERTY TESTING DEVICE AND STEEL PLAT...
- Publication number 20230019171
- Publication date Jan 19, 2023
- POSCO
- Ju-Seung LEE
- G01 - MEASURING TESTING
Information Patent Application
HIGH-STRENGTH STEEL HAVING EXCELLENT RESISTANCE TO SULFIDE STRESS C...
- Publication number 20220010418
- Publication date Jan 13, 2022
- POSCO
- Seong-Ung KOH
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL SHEET HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE A...
- Publication number 20200332401
- Publication date Oct 22, 2020
- POSCO
- Seong-Ung Koh
- C21 - METALLURGY OF IRON
Information Patent Application
SOUR-RESISTANT HEAVY-WALL STEEL PLATE HAVING EXCELLENT LOW-TEMPERAT...
- Publication number 20200239977
- Publication date Jul 30, 2020
- POSCO
- Seong-Ung KOH
- C21 - METALLURGY OF IRON
Information Patent Application
HEAVY-WALL STEEL PLATE HAVING 450MPA-GRADE TENSILE STRENGTH AND EXC...
- Publication number 20190382865
- Publication date Dec 19, 2019
- POSCO
- Seong-Ung KOH
- C21 - METALLURGY OF IRON
Information Patent Application
THICK STEEL PLATE HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS AND HY...
- Publication number 20180355461
- Publication date Dec 13, 2018
- POSCO
- Seong-Ung KOH
- C21 - METALLURGY OF IRON
Information Patent Application
Steel Sheet for an Oil Sand Slurry Pipe Having Excellent Abrasion R...
- Publication number 20130284324
- Publication date Oct 31, 2013
- POSCO
- Seong-Ung Koh
- C21 - METALLURGY OF IRON

Seong-Ung Koh

Person

Patents Grantslast 30 patents

Steel plate surface material property testing device and steel plat...

High-strength steel having excellent resistance to sulfide stress c...

Steel sheet having excellent hydrogen induced cracking resistance a...

Sour-resistant heavy-wall steel plate having excellent low-temperat...

Thick steel plate having excellent low-temperature toughness and hy...

Steel sheet for an oil sand slurry pipe having excellent abrasion r...

Patents Applicationslast 30 patents

ELECTROMAGNETIC INSPECTION DEVICE CAPABLE OF CALIBRATION

STEEL SHEET HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE A...

STEEL MATERIAL HAVING EXCELLENT SULFIDE STRESS CORROSION CRACKING R...

STEEL PLATE SURFACE MATERIAL PROPERTY TESTING DEVICE AND STEEL PLAT...

HIGH-STRENGTH STEEL HAVING EXCELLENT RESISTANCE TO SULFIDE STRESS C...

STEEL SHEET HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE A...

SOUR-RESISTANT HEAVY-WALL STEEL PLATE HAVING EXCELLENT LOW-TEMPERAT...

HEAVY-WALL STEEL PLATE HAVING 450MPA-GRADE TENSILE STRENGTH AND EXC...

THICK STEEL PLATE HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS AND HY...

Steel Sheet for an Oil Sand Slurry Pipe Having Excellent Abrasion R...