Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6868052 | Optical disc playback apparatus and method of judging disc type | Mitunori Konno, Mituru Umazaki | 2005-03-15 |
| 6842578 | Specially formatted optical disk and method of playback | — | 2005-01-11 |