Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802040 | Disk-type recording and reproducing apparatus | Fumito Komatsu, Yuzo Oguchi, Akiyoshi Toyama | 1989-01-31 |
| 4796120 | Magnetic tape drive machine | Fumito Komatsu, Tuneo Tezuka, Akiyoshi Toyama | 1989-01-03 |
| 4648001 | Recording and reproducing disk cassette with improved, slidable shutter plate | Fumito Komatsu, Akiyoshi Toyama, Yuzo Oguchi | 1987-03-03 |