Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839748 | Initial state setting system for still picture recording/reproduction device | — | 1989-06-13 |
| 4805050 | Disk player information selecting apparatus | Yoshio Aoyagi, Shizuo Kakiuchi, Naoto Arifuku | 1989-02-14 |
| 4800452 | Disk recording and reproducing head system having track seeking for faulty addresses | — | 1989-01-24 |