Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7668063 | Optical disk device | — | 2010-02-23 |
| 7545709 | Optical disk apparatus having servo parameter setting unit | — | 2009-06-09 |
| 7224648 | Optical recording and reproduction apparatus including stable and inexpensive servo control mechanism | — | 2007-05-29 |
| 6946633 | Optical disc apparatus and method for controlling focus of the same | Minoru Hirashima | 2005-09-20 |