Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700720 | Method of manufacturing semiconductor device having multilayer interconnection | — | 1997-12-23 |
| 4988609 | Method of forming micro patterns | Tiharu Kato, Hitoshi Tsuji | 1991-01-29 |
| 4985374 | Making a semiconductor device with ammonia treatment of photoresist | Hitoshi Tsuji, Hiroshi Haraguchi, Osamu Hirata | 1991-01-15 |