Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10481485 | Mask blank, transfer mask, method of manufacturing transfer mask and method of manufacturing semiconductor device | Osamu Nozawa, Takenori Kajiwara | 2019-11-19 |
| 10365555 | Mask blank, transfer mask and methods of manufacturing the same | Hiroaki Shishido, Osamu Nozawa | 2019-07-30 |