Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810002 | Information storing medium with guide tracks and information tracks | Kousei Sano | 2004-10-26 |
| 6798723 | Optical pickup head and information recording/reproducing device | Hideki Hayashi, Sadao Mizuno, Daisuke Ogata, Kousei Sano, Jouji Anzai +1 more | 2004-09-28 |
| 6744707 | 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 | 2004-06-01 |
| 6741416 | Tracking signal generating device and method, and magnetic recording/reproducing system | Kousei Sano, Hajime Hatada, Ikuo Ohmura | 2004-05-25 |
| 6731585 | Optical pick-up head with semiconductor laser | Hideki Hayashi | 2004-05-04 |
| 6728192 | Tracking error signal detection system for optical recording medium | Shinichi Tanaka, Seiji Nishiwaki, Kousei Sano, Seiji Nishino | 2004-04-27 |