Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6980508 | Optical recording medium, recording, and reproduction apparatus having multiple recording capacity features | Keiichi Tsutsui, Atsushi Fukumoto, Katsuhisa Aratani | 2005-12-27 |
| 6885628 | Optical recording medium, recording, and reproduction apparatus having multiple recording capacity features | Keiichi Tsutsui, Atsushi Fukumoto, Katsuhisa Aratani | 2005-04-26 |