Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6527904 | Method of producing an optical video disc | Haruhisa Maruyama, Masayuki Uno, Jiro Fujimori, Masaaki Motokawa | 2003-03-04 |
| 5015338 | Method of manufacturing a stamper for formation of optical information carrying disk | Osamu Kumasaka, Katsura Ito, Kenji Koushiro | 1991-05-14 |