Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458497 | Mask for manufacturing semiconductor device and method of manufacture thereof | — | 2002-10-01 |
| 6432790 | Method of manufacturing photomask, photomask, and method of manufacturing semiconductor integrated circuit device | Masamichi Kobayashi, Satoshi Momose | 2002-08-13 |
| 6420075 | Mask for manufacturing semiconductor device and method of manufacture thereof | — | 2002-07-16 |