Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325809 | Composition for surface treating of steel sheet, steel sheet using same, and manufacturing method of same | Chang-Hoon Choi, Won-Ho Son, Chan-Seok Bang | 2025-06-10 |
| 12054643 | Composition for steel sheet surface coating and steel sheet surface-coated with same | Chang-Hoon Choi, Dong-Yun Kim, Won-Ho Son, Hee-Jea Eun | 2024-08-06 |
| 11939489 | Solution composition for surface treatment of steel sheet and surface-treated steel sheet using same | Chang-Hoon Choi, Dong-Yun Kim, Min-Ho JO, Won-Ho Son, Jong-Hwa Kim | 2024-03-26 |