Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348430 | Process for producing magnetic particles for magnetic recording medium | Takayoshi Kobuke | 1982-09-07 |
| 4347291 | Magnetic recording medium and preparation thereof | — | 1982-08-31 |
| 4339425 | Process for producing acicular hydrated ferric oxide particles | — | 1982-07-13 |
| 4309459 | Process for producing SiO.sub.2 coated iron oxide powder for use in the preparation of acicular magnetic iron or iron oxide powder | — | 1982-01-05 |