Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4532566 | Tape cassette | — | 1985-07-30 |
| 4318757 | Process for producing ferro-magnetic metal particles | Riyuuzou Seike | 1982-03-09 |
| 4272285 | Process for producing magnetic metal powders | — | 1981-06-09 |