Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851939 | Actuator driving apparatus and magnetic disk drive system with a smaller number of high power amplifiers than actuators | Yosuke Seo, Yoshiyuki Hirano, Hajime Aoi, Kazuyoshi Nakabayashi | 1989-07-25 |
| 4823208 | Multi slice level signal circuit | Yasuhide Ouchi, Hajime Aoi, Nobumasa Nishiyama, Makoto Saitoh, Reijiro Tsuchiya | 1989-04-18 |