Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347502 | Focusing control system for use in an information recording and reproducing apparatus | Shinichi Yamada | 1994-09-13 |
| 5343454 | Tracking control apparatus for correcting tracking error signal according to approximate equation of a function of track address | Katsuya Watanabe, Hiroyuki Yamaguchi, Yasuaki Edahiro, Mitsuro Moriya | 1994-08-30 |
| 5331615 | Tracking control apparatus for an optical disk device | Shinichi Yamada, Mitsuro Moriya, Hiroyuki Yamaguchi | 1994-07-19 |