Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363831 | Process for producing magnetic powder having high coercive force | Kazuo Takada | 1982-12-14 |
| 4323464 | Process for producing hydrated iron oxide having silicon and phosphorus component | — | 1982-04-06 |
| 4321302 | Process for producing magnetic powder having high coercive force | Toshihiro Hamabata, Kazuaki Onuki, Kazuo Takada | 1982-03-23 |
| 4311684 | Process for producing iron oxide containing magnetite | — | 1982-01-19 |