Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321675 | Pit spacing in the servo field of an optical disk for speed and direction detection and data retrieval | Osamu Ito, Kyosuke Yoshimoto, Kunimaro Tanaka, Teruo Furukawa, Masafumi Ototake | 1994-06-14 |
| 5285431 | Information storage device with head position detection outside a user utilizable region and an optical disk drive device having target velocity-controlled head actuation | — | 1994-02-08 |