Issued Patents 1989
Showing 1–1 of 1 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, Takashi Tamura | 1989-07-25 |