Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5867315 | Crystal optic lens and an optical system for an optical pickup device | Katsuhiro Koike | 1999-02-02 |
| 5710749 | Method and apparatus for determining an optical disc type | Masanori Suzuki | 1998-01-20 |
| 4636628 | Optically recorded data reading apparatus with inclination controller | — | 1987-01-13 |
| 4633454 | Optical information pickup apparatus | — | 1986-12-30 |
| 4624526 | Optical pickup device | Akihiro Tachibana | 1986-11-25 |