Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7969842 | Playback device and management information acquiring method | Masaaki Yamamoto, Atsushi Ishimaru | 2011-06-28 |
| 7876658 | Optical-disk device and record-control method with disc-management information writing features | — | 2011-01-25 |