Last update: January 9, 2024
13. DVD-RAM Disc
DVD-RAM
| Ref. No. | Country | Patent No. | Patentee | Expiry Date |
|---|---|---|---|---|
| 667 | US | 7,154,826 | Hitachi C.E. | 2024-04-26 |
| 668 | US | 7,190,647 | Hitachi C.E. | 2025-08-03 |
Last update: January 9, 2024
| Ref. No. | Country | Patent No. | Patentee | Expiry Date |
|---|---|---|---|---|
| 667 | US | 7,154,826 | Hitachi C.E. | 2024-04-26 |
| 668 | US | 7,190,647 | Hitachi C.E. | 2025-08-03 |