Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4368230 | Photomask | Koichiro Mizukami | 1983-01-11 |
| 4256778 | Method of inspecting and retouching a photo mask | Koichiro Mizukami | 1981-03-17 |
| 4219731 | Method for detecting object picture by electron beam | Koichiro Mizukami | 1980-08-26 |