Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802040 | Disk-type recording and reproducing apparatus | Fumito Komatsu, Yuzo Oguchi, Kiyoharu Iwanami | 1989-01-31 |
| 4796120 | Magnetic tape drive machine | Fumito Komatsu, Tuneo Tezuka, Kiyoharu Iwanami | 1989-01-03 |