Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9354509 | Mask blank, transfer mask, method of manufacturing a transfer mask, and method of manufacturing a semiconductor device | Osamu Nozawa | 2016-05-31 |
| 8715892 | Mask blank, transfer mask, method of manufacturing a transfer mask, and method of manufacturing a semiconductor device | Osamu Nozawa | 2014-05-06 |