Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845574 | Apparatus for recording and reproducing digital signals on magnetic tape | Hiroshi Ii, Syuhei Yasuda | 1989-07-04 |
| 4812987 | Wave shaping circuit | Chiaki Yamawaki, Taizo Sasada, Tetsuo Iwaki | 1989-03-14 |