Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686207 | Method of forming and repairing a mask for photolithography | Masayuki Suda, Akito Ando | 1997-11-11 |
| 5654131 | Optical memory medium | Masamichi Fujihira, Hiroshi Muramatsu, Norio Chiba | 1997-08-05 |