Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355263 | Rotary head type magnetic tape apparatus | Makoto Yamada | 1994-10-11 |
| 5313339 | Apparatus using a rotary head for recording digital video and audio signals at double speed | Tadashi Fukami, Shinichi Fukuda, Makoto Yamada | 1994-05-17 |