Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823219 | Carriage recording head sandwiched by electromagnetic coil sections | Takashi Yumura, Tetsu Yamamoto, Kiyosi Funai | 1989-04-18 |
| 4819106 | Head positioning assembly for magnetic disc apparatus | Takashi Yumura, Kiyosi Funai, Tetsu Yamamoto | 1989-04-04 |