Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6925038 | Optical disc apparatus having compensation for objective lens dislocation, and method therefor | Akira Matsubara, Kazuhiko Kouno | 2005-08-02 |
| 6819636 | Optical disc device | Kazuhiko Kouno | 2004-11-16 |
| 6721246 | Optical disk apparatus having compensation for objective lens dislocation | Akira Matsubara, Kazuhiko Kouno | 2004-04-13 |
| 6473373 | Optical disk apparatus having compensation for objective lens dislocation | Akira Matsubara, Kazuhiko Kouno | 2002-10-29 |
| 5805542 | Optical disk apparatus with a groove/pit area discrimination circuit | Masayuki Shibano | 1998-09-08 |