Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760285 | Disk device and method for adjusting servo mechanism | Minoru Hirashima | 2004-07-06 |
| 6674694 | Light-pickup device applied to a recording and/or reproduction device for an optical disk inluding a detection circuit that generates a focus zero cross signal | — | 2004-01-06 |