Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6791914 | Preformatted guide tracks and co-written control tracks for multichannel optical recording | — | 2004-09-14 |
| 6693872 | Multi-track optical data recording and readout | Alan T. Brewen | 2004-02-17 |
| 6690636 | Preformatting optical recording medium | — | 2004-02-10 |