Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12339251 | Steel plate surface material property testing device and steel plate surface material property testing method | Ju-Seung Lee | 2025-06-24 |
| 12037667 | High-strength steel having excellent resistance to sulfide stress cracking, and method for manufacturing same | Yoen-Jung Park, Hong-Ju Lee, Hyo-Shin Kim, Moo-Jong Bae | 2024-07-16 |
| 11746401 | Steel sheet having excellent hydrogen induced cracking resistance and longitudinal strength uniformity, and manufacturing method therefor | Hyo-Shin Kim, Yoen-Jung Park | 2023-09-05 |
| 11649519 | Sour-resistant heavy-wall steel plate having excellent low-temperature toughness and post-heat treatment characteristics and method for manufacturing same | Jae Hyun Park, Moo-Jong Bae | 2023-05-16 |
| 10801092 | Thick steel plate having excellent low-temperature toughness and hydrogen-induced cracking resistance, and method for manufacturing same | Jae Hyun Park, Yoen-Jung Park, Moo-Jong Bae | 2020-10-13 |
| 9238849 | Steel sheet for an oil sand slurry pipe having excellent abrasion resistance, corrosion resistance, and low-temperature toughness and method for manufacturing same | Hwan-Gyo Jung | 2016-01-19 |