Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414931 | Lens driving device, optical head and optical disc system | Fumisada Maeda, Isao Ichimura, Kenji Yamamoto, Toshio Watanabe | 2002-07-02 |
| 6366543 | Optical pickup for discriminating between and reading different types of optical discs | Kamon Uemura, Akio Yamakawa, Masamichi Utsumi | 2002-04-02 |
| 6353592 | Optical recording medium and optical disk device | Toshiyuki Kashiwagi, Tetsuhiro Sakamoto | 2002-03-05 |