Last update: July 4, 2023
13. DVD-RAM Disc
DVD-RAM
Ref. No. | Country | Patent No. | Patentee | Expiry Date |
---|---|---|---|---|
107 | PH | 1-1997-58302 | Panasonic | 2023-06-08 |
586 | MY | 135,281 | SAMSUNG | 2023-03-31 |
592 | US | 6,839,504 | Panasonic | 2023-04-24 |
667 | US | 7,154,826 | Hitachi C.E. | 2024-04-26 |
668 | US | 7,190,647 | Hitachi C.E. | 2025-08-03 |