Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11420419 | Austenite-based molten aluminum-plated steel sheet having excellent properties of plating and weldability | Young Ha Kim, Hyeon Seok Hwang, Heung-Yun Kim | 2022-08-23 |
| 10563280 | High manganese steel sheet having high strength and excellent vibration-proof properties and method for manufacturing same | Sung Kyu Kim, Tae-Jin Song, Tai Ho Kim, Won Tae CHO, Sun-Ho Jeon | 2020-02-18 |
| 10508326 | High-manganese steel with superior coating adhesion and method for manufacturing hot-dip galvanized steel from same | Sun-Ho Jeon | 2019-12-17 |
| 10144986 | Ultrahigh-strength steel sheet and manufacturing method therefor | Sung Kyu Kim, Won Tae CHO, Tai Ho Kim, Sang-Ho Han | 2018-12-04 |
| 10087511 | Method for manufacturing high manganese hot-dip galvanized steel sheet with excellent coatability and ultra-high strength, and high manganese hot-dip galvanized steel sheet manufactured by said method | Sun-Ho Jeon, Won Tae CHO | 2018-10-02 |
| 10053749 | Production method for plated steel sheet using a steel sheet annealing device | Rho-Bum Park, Man-Young Park | 2018-08-21 |
| 9856542 | Ferritic lightweight high-strength steel sheet having excellent stiffness and ductility, and method of manufacturing the same | Jai-Hyun Kwak, Kyoo-Young Lee | 2018-01-02 |
| 9738958 | Austenitic, lightweight, high-strength steel sheet having high yield ratio and ductility, and method for producing the same | Sang-Ho Han, Jai-Hyun Kwak | 2017-08-22 |
| 9708703 | High-manganese hot-rolled galvanized steel sheet and manufacturing method thereof | Sun-Ho Jeon | 2017-07-18 |
| 9598753 | High strength thin steel sheet for the superior press formability and surface quality and galvanized steel sheet and method for manufacturing the same | Jai-Hyun Kwak | 2017-03-21 |
| 9580786 | High Mn steel sheet for high corrosion resistance and method of manufacturing galvanizing the steel sheet | Il-Ryoung Sohn, Seong Ju Kim, Myung-Soo Kim, Sung Kyu Kim | 2017-02-28 |
| 9194030 | High strength thin steel sheet for the superior press formability and surface quality and galvanized steel sheet and method for manufacturing the same | Jai-Hyun Kwak | 2015-11-24 |
| 9109273 | High strength steel sheet and hot dip galvanized steel sheet having high ductility and excellent delayed fracture resistance and method for manufacturing the same | Young Hoon Jin, Seung-bok LEE, Jai-Hyun Kwak | 2015-08-18 |
| 8999085 | High manganese steel strips with excellent coatability and superior surface property, coated steel strips using steel strips and method for manufacturing the steel strips | Seong Ju Kim, Hyun-Gyu Hwang, Sung Kyu Kim, Il-Ryoung Sohn, Young Kook Lee +1 more | 2015-04-07 |
| 8778097 | Low specific gravity and high strength steel sheets with excellent ridging resistibility and manufacturing methods thereof | Jai-Hyun Kwak | 2014-07-15 |
| 8052924 | High strength steel plate with high manganese having excellent burring workability | Sung Kyu Kim | 2011-11-08 |