Hak-Cheol LEE

Person

Pohang-si, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Ultra-thick steel material having excellent surface part NRL-DWT pr...
- Patent number 11,649,518
- Issue date May 16, 2023
- POSCO Co., Ltd
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Grant
Ultra-thick steel material having excellent surface part NRL-DWT pr...
- Patent number 11,634,784
- Issue date Apr 25, 2023
- POSCO Co., Ltd
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Grant
Cryogenic steel plate and method for manufacturing same
- Patent number 11,608,549
- Issue date Mar 21, 2023
- POSCO Co., Ltd
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Grant
Low-temperature steel material having excellent toughness in weldin...
- Patent number 11,591,679
- Issue date Feb 28, 2023
- POSCO Co., Ltd
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Grant
Low-temperature steel plate having excellent impact toughness, and...
- Patent number 11,434,557
- Issue date Sep 6, 2022
- Posco
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Grant
Enhanced wear resistant steel and methods of making the same
- Patent number 11,155,905
- Issue date Oct 26, 2021
- ExxonMobil Research and Engineering Company
- Hyunwoo Jin
- C21 - METALLURGY OF IRON
Information Patent Grant
High-strength steel having superior brittle crack arrestability, an...
- Patent number 10,883,159
- Issue date Jan 5, 2021
- Posco
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Grant
High-strength steel having superior brittle crack arrestability, an...
- Patent number 10,822,671
- Issue date Nov 3, 2020
- Posco
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel having excellent weldability and impact toughness of welding...
- Patent number 10,301,707
- Issue date May 28, 2019
- Posco
- Hak-Cheol Lee
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
High strength austenitic-based steel with remarkable toughness of w...
- Patent number 10,041,156
- Issue date Aug 7, 2018
- POSCO
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
STEEL PLATE HAVING EXCELLENT HEAT AFFECTED ZONE TOUGHNESS AND METHO...
- Publication number 20240336987
- Publication date Oct 10, 2024
- POSCO Co., Ltd
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH ULTRA-THICK STEEL WITH EXCELLENT CRYOGENIC STRAIN AGI...
- Publication number 20220325395
- Publication date Oct 13, 2022
- POSCO
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Application
ULTRA-THICK STRUCTURAL STEEL HAVING EXCELLENT BRITTLE CRACK INITIAT...
- Publication number 20220056544
- Publication date Feb 24, 2022
- POSCO
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Application
ULTRA-THICK STEEL EXCELLENT IN BRITTLE CRACK ARRESTABILITY AND MANU...
- Publication number 20220025491
- Publication date Jan 27, 2022
- POSCO
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Application
LOW-TEMPERATURE STEEL MATERIAL HAVING EXCELLENT TOUGHNESS IN WELDIN...
- Publication number 20210010114
- Publication date Jan 14, 2021
- POSCO
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Application
CRYOGENIC STEEL PLATE AND METHOD FOR MANUFACTURING SAME
- Publication number 20200347487
- Publication date Nov 5, 2020
- POSCO
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Application
LOW-TEMPERATURE STEEL PLATE HAVING EXCELLENT IMPACT TOUGHNESS, AND...
- Publication number 20200283877
- Publication date Sep 10, 2020
- POSCO
- Hak-Cheol Lee
- C21 - METALLURGY OF IRON
Information Patent Application
ULTRA-THICK STEEL MATERIAL HAVING EXCELLENT SURFACE PART NRL-DWT PR...
- Publication number 20200109461
- Publication date Apr 9, 2020
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
ULTRA-THICK STEEL MATERIAL HAVING EXCELLENT SURFACE PART NRL-DWT PR...
- Publication number 20190390292
- Publication date Dec 26, 2019
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH STEEL HAVING SUPERIOR BRITTLE CRACK ARRESTABILITY, AN...
- Publication number 20190093204
- Publication date Mar 28, 2019
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
LOW YIELD RATIO AND HIGH-STRENGTH STEEL HAVING EXCELLENT STRESS COR...
- Publication number 20180371588
- Publication date Dec 27, 2018
- POSCO
- Sung-Ho JANG
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH STEEL HAVING EXCELLENT BRITTLE CRACK ARRESTABILITY AN...
- Publication number 20180363107
- Publication date Dec 20, 2018
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH STEEL HAVING EXCELLENT BRITTLE CRACK ARRESTABILITY AN...
- Publication number 20180363081
- Publication date Dec 20, 2018
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
ENHANCED WEAR RESISTANT STEEL AND METHODS OF MAKING THE SAME
- Publication number 20180258515
- Publication date Sep 13, 2018
- ExxonMobil Research and Engineering Company
- Hyunwoo Jin
- C21 - METALLURGY OF IRON
Information Patent Application
STRUCTURAL ULTRA-THICK STEEL HAVING EXCELLENT RESISTANCE TO BRITTLE...
- Publication number 20170342518
- Publication date Nov 30, 2017
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH STEEL HAVING SUPERIOR BRITTLE CRACK ARRESTABILITY, AN...
- Publication number 20170335424
- Publication date Nov 23, 2017
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH STEEL HAVING SUPERIOR BRITTLE CRACK ARRESTABILITY, AN...
- Publication number 20170327922
- Publication date Nov 16, 2017
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
EXPANDABLE HIGH-STRENGTH STEEL MATERIAL AND EXPANDED HIGH-STRENGTH...
- Publication number 20170138511
- Publication date May 18, 2017
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL FOR LOW-TEMPERATURE SERVICE HAVING EXCELLENT SURFACE PROCESSI...
- Publication number 20160319407
- Publication date Nov 3, 2016
- POSCO
- Soon-Gi LEE
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL HAVING EXCELLENT WELDABILITY AND IMPACT TOUGHNESS OF WELDING...
- Publication number 20160312344
- Publication date Oct 27, 2016
- POSCO
- Hak-Cheol LEE
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
HIGH STRENGTH AUSTENITIC-BASED STEEL WITH REMARKABLE TOUGHNESS OF W...
- Publication number 20150354037
- Publication date Dec 10, 2015
- POSCO
- Hak-Cheol LEE
- C21 - METALLURGY OF IRON
Information Patent Application
WEAR RESISTANT AUSTENITIC STEEL HAVING SUPERIOR MACHINABILITY AND D...
- Publication number 20140356220
- Publication date Dec 4, 2014
- Soon-Gi Lee
- C21 - METALLURGY OF IRON
Information Patent Application
ENHANCED WEAR RESISTANT STEEL AND METHODS OF MAKING THE SAME
- Publication number 20140261918
- Publication date Sep 18, 2014
- ExxonMobil Research and Engineering Company
- HyunWoo Jin
- C21 - METALLURGY OF IRON

Hak-Cheol LEE

Person

Patents Grantslast 30 patents

Ultra-thick steel material having excellent surface part NRL-DWT pr...

Ultra-thick steel material having excellent surface part NRL-DWT pr...

Cryogenic steel plate and method for manufacturing same

Low-temperature steel material having excellent toughness in weldin...

Low-temperature steel plate having excellent impact toughness, and...

Enhanced wear resistant steel and methods of making the same

High-strength steel having superior brittle crack arrestability, an...

High-strength steel having superior brittle crack arrestability, an...

Steel having excellent weldability and impact toughness of welding...

High strength austenitic-based steel with remarkable toughness of w...

Patents Applicationslast 30 patents

STEEL PLATE HAVING EXCELLENT HEAT AFFECTED ZONE TOUGHNESS AND METHO...

HIGH-STRENGTH ULTRA-THICK STEEL WITH EXCELLENT CRYOGENIC STRAIN AGI...

ULTRA-THICK STRUCTURAL STEEL HAVING EXCELLENT BRITTLE CRACK INITIAT...

ULTRA-THICK STEEL EXCELLENT IN BRITTLE CRACK ARRESTABILITY AND MANU...

LOW-TEMPERATURE STEEL MATERIAL HAVING EXCELLENT TOUGHNESS IN WELDIN...

CRYOGENIC STEEL PLATE AND METHOD FOR MANUFACTURING SAME

LOW-TEMPERATURE STEEL PLATE HAVING EXCELLENT IMPACT TOUGHNESS, AND...

ULTRA-THICK STEEL MATERIAL HAVING EXCELLENT SURFACE PART NRL-DWT PR...

ULTRA-THICK STEEL MATERIAL HAVING EXCELLENT SURFACE PART NRL-DWT PR...

HIGH-STRENGTH STEEL HAVING SUPERIOR BRITTLE CRACK ARRESTABILITY, AN...

LOW YIELD RATIO AND HIGH-STRENGTH STEEL HAVING EXCELLENT STRESS COR...

HIGH-STRENGTH STEEL HAVING EXCELLENT BRITTLE CRACK ARRESTABILITY AN...

HIGH-STRENGTH STEEL HAVING EXCELLENT BRITTLE CRACK ARRESTABILITY AN...

ENHANCED WEAR RESISTANT STEEL AND METHODS OF MAKING THE SAME

STRUCTURAL ULTRA-THICK STEEL HAVING EXCELLENT RESISTANCE TO BRITTLE...

HIGH-STRENGTH STEEL HAVING SUPERIOR BRITTLE CRACK ARRESTABILITY, AN...

HIGH-STRENGTH STEEL HAVING SUPERIOR BRITTLE CRACK ARRESTABILITY, AN...

EXPANDABLE HIGH-STRENGTH STEEL MATERIAL AND EXPANDED HIGH-STRENGTH...

STEEL FOR LOW-TEMPERATURE SERVICE HAVING EXCELLENT SURFACE PROCESSI...

STEEL HAVING EXCELLENT WELDABILITY AND IMPACT TOUGHNESS OF WELDING...

HIGH STRENGTH AUSTENITIC-BASED STEEL WITH REMARKABLE TOUGHNESS OF W...

WEAR RESISTANT AUSTENITIC STEEL HAVING SUPERIOR MACHINABILITY AND D...

ENHANCED WEAR RESISTANT STEEL AND METHODS OF MAKING THE SAME