Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6584061 | Optical pick-up device | Tohru Hotta, Ikuo Kasuga, Satoru Kishita | 2003-06-24 |
| 6538977 | Mechanism for adjusting radiating direction of light emitted from laser light source in optical pickup device | — | 2003-03-25 |
| 6522619 | Optical pick-up device having a plurality of light sources with different calorific values and method of manufacturing the same | Tohru Hotta, Ikuo Kasuga, Toshihiko Okina, Satoru Kishita, Hidenori Sai | 2003-02-18 |