Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699332 | Control circuit of optical disk system to improve transition for seek control to tracking control | — | 1997-12-16 |
| 5689358 | Optical functional devices and integrated optical devices having a ridged multi-quantum well structure | Masashi Nakao, Yasuhiro Suzuki, Osamu Mitomi, Kazuo Kasaya, Kiyoyuki Yokoyama | 1997-11-18 |
| 5684767 | Track jump control circuit of optical disk apparatus properly controlling timing of accelerating pulses and decelerating pulses, and performing stable track jump | — | 1997-11-04 |
| 5598389 | Signal detector for an optical information reproducing apparatus | Hiroshi Ezawa, Nobuhide Matsubayashi | 1997-01-28 |