Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9766540 | Method of forming photomask | Jong-Keun Oh, Hyungho Ko, Jaehyuck Choi, JunYoul Choi | 2017-09-19 |
| 9709893 | Exposure method using electron beam and substrate manufacturing method using the same | Sook Hyun Lee, Shuichi Tamamushi, So-eun Shin, Jin Choi | 2017-07-18 |