Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6392977 | Optical pickup with a hologram to limit the aperture of two light beams with different wavelengths | Kazuhiko Fujiie | 2002-05-21 |
| 6347015 | Optical pickup device | — | 2002-02-12 |
| 6337774 | Optical pickup device | — | 2002-01-08 |
| 6335836 | Optical pickup device | — | 2002-01-01 |