Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325887 | Black color plated steel sheet, and manufacturing method thereof | Hye-Jeong Kim, Taek Geun Lee | 2025-06-10 |
| 11905587 | Alloy coated steel sheet | Ji Hoon Yang, Jae In Jeong, Yong-Hwa Jung, Tae-Yeob Kim | 2024-02-20 |
| 11555240 | Black plated steel sheet and manufacturing method thereof | Jae In Jeong, Hye-Jeong Kim, Ji Hoon Yang | 2023-01-17 |
| 11441219 | Black plated steel sheet and manufacturing method therefor | Hye-Jeong Kim, Gab-Sik Byun, Mi Seon Choi | 2022-09-13 |