Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368933 | Superparamagnetic fine particles of iron oxide and magnetic recording media containing said particles | Koso Aoki, Masaaki Fukugauchi, Tomoyuki Imai, Kazuyuki Hayashi | 1994-11-29 |