Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9551925 | Blankmask and photomask using the same | Kee-Soo Nam, Chul-Kyu YANG, Cheol Shin, Jong-Hwa Lee, Min-Ki CHOI +2 more | 2017-01-24 |
| 9482940 | Blankmask and photomask | Kee-Soo Nam, Cheol Shin, Jong-Hwa Lee, Chul-Kyu YANG, Chang-Jun Kim +2 more | 2016-11-01 |
| 9389500 | Mask blank, photomask, and method for manufacturing same | Kee-Soo Nam, Jong-Hwa Lee, Chul-Kyu YANG, Soon-Gi KWON | 2016-07-12 |
| 9256119 | Phase-shift blankmask and method for fabricating the same | Kee-Soo Nam, Dong Geun Kim, Jong Won Jang, Min-Ki CHOI | 2016-02-09 |
| 9229317 | Blankmask and method for fabricating photomask using the same | Kee-Soo Nam, Chul-Kyu YANG, Jong-Hwa Lee, Kyu-Jin Jang | 2016-01-05 |
| 8846276 | Blankmask and photomask using the same | Kee-Soo Nam, Jong-Hwa Lee, Chul-Kyu YANG, Soon-Gi KWON | 2014-09-30 |
| 5444026 | Method for manufacturing semiconductor device by forming insulator-layer to suppress bubble formation | Chang-Kyu Kim, Myeong-beom Lee, Ji Hyun Choi, Woo-in Joung, Young Im +2 more | 1995-08-22 |