Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9783639 | Diamine compound, and polyamic acid and polyimide using the same | Chang Sik HA, Tapaswi Pradip Kumar, Keuk Min Jeong | 2017-10-10 |
| 8828476 | Polyimide nanocomposite and method for preparing same | Chang Sik HA, Gwang Yeon Kim | 2014-09-09 |