Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7693020 | Optical disk device, and focused layer discriminating method of optical disk | — | 2010-04-06 |
| 7577071 | Tilt amount detector, tilt corrector, and optical disc apparatus | — | 2009-08-18 |
| 5903529 | Optical pickup device and disk player apparatus | Noriaki Nishi, Kimihiro Saito, Kazuyoshi Horie, Yasuo Sasaki, Kenji Araki | 1999-05-11 |