Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665257 | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same | Kousei Sano, Hiroaki Yamamoto, Ken'ichi Kasazumi, Seiji Nishino | 2003-12-16 |
| 6661769 | Optical storage medium, a tilt detection apparatus, and a data recording and reproducing apparatus | Kousei Sano, Hiromichi Ishibashi, Shigeru Furumiya | 2003-12-09 |
| 6654336 | Semiconductor light source, optical pickup head apparatus, and data record/playback apparatus | Yoshiaki Komma | 2003-11-25 |
| 6643245 | Optical element, light source apparatus, optical head apparatus, and optical information processing apparatus | Hiroaki Yamamoto, Hideki Hayashi | 2003-11-04 |
| 6643303 | Laser drive device, optical head, and optical information processor | Tatsuo Ito, Tomotada Kamei, Hiroaki Yamamoto, Yoshiaki Komma | 2003-11-04 |
| 6532202 | Optical element, optical head and optical recording reproducing apparatus | Hidenori Wada, Hiroaki Yamamoto, Tetsuo Saimi, Daisuke Ogata, Naoya Hotta +1 more | 2003-03-11 |