Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875115 | Digital signal tape recording/reproducing apparatus with improved servo control | — | 1989-10-17 |
| 4864436 | Rotary head digital audio recording/reproducing apparatus | Yutaka Masumoto, Tomoyasu Yamada | 1989-09-05 |
| 4860130 | Rotary head type digital audio signal reproducing apparatus | Ken-ichiro Kawasaki | 1989-08-22 |
| 4841390 | Digital signal reproducing apparatus | — | 1989-06-20 |