Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882612 | Power semiconductor device | Yasunori Usui, Yoshinari Uetake, Takashi Fujiwara | 1989-11-21 |
| 4845576 | Magnetic recording/reproduction apparatus | Masahiro Kusunoki, Toshiya Saito, Hiroshi Ohashi | 1989-07-04 |
| 4819103 | Apparatus for reproducing data from magnetic recording medium | — | 1989-04-04 |