Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6396799 | Optical disk drive device using an optical disk having a continuous information track formed of alternating land/groove revolutions | Masato Nagasawa, Kazuhiko Nakane, Kouichi Komawaki | 2002-05-28 |