Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866688 | Composite tracking servo system for optical disc apparatus with track offset correction | Masatoshi Ohtake, Seiji Yonezawa, Toshiaki Tsuyoshi, Kazuo Ichino, Takashi Takeuchi +2 more | 1989-09-12 |
| 4805040 | Drop-out correction circuit in an apparatus for correcting time base error with inhibition of time-base information during dropout | Masuo Oku, Yoshimichi Kudo, Isao Saito | 1989-02-14 |