Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864553 | Apparatus for controlling rotation of a run length limited code modulated information recording medium | Yoshio Sakakibara, Shoichi Inatomi, Noriyuki Ema | 1989-09-05 |
| 4809094 | Method of accessing data recorded on a disk at a high speed | — | 1989-02-28 |