Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831730 | Optical magnification adjustment system and projection exposure device | Noriyoshi Matsumoto, Nozomu Kowatari | 2004-12-14 |
| 6738195 | Optical magnification adjustment system and projection exposure device | Noriyoshi Matsumoto, Nozomu Kowatari | 2004-05-18 |