Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5289447 | Track cross signal generation circuit of optical disk device for correctly outputting track cross signal and correctly and stably carrying out seek operation even within high-speed region of beam | Shigeko Kobayashi, Shigenori Yanagi | 1994-02-22 |
| 5276671 | Control apparatus of laser diode | Shigeyoshi Tanaka | 1994-01-04 |