Issued Patents 2024
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12054801 | Zinc plated steel sheet having excellent surface quality and spot weldability, and manufacturing method therefor | Sang-Ho Uhm, Chung Hwan Lee | 2024-08-06 |
| 12000008 | Advanced high strength zinc plated steel sheet having excellent surface quality and electrical resistance spot weldability | Chung Hwan Lee, Yong Joo Kim, Kang-min Lee, Kyoo-Young Lee | 2024-06-04 |
| 11981973 | Zinc plated steel sheet having excellent fatigue strength of electrical resistance spot welds, and manufacturing method thereof | Chung Hwan Lee | 2024-05-14 |