Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4200680 | Process for preparing magnetic iron oxide and magnetic iron oxide produced thereby | Koji Sasazawa, Shigeo Komine, Goro Akashi | 1980-04-29 |
| 4183976 | Process of producing a magnetic recording element | Yasuyuki Yamada | 1980-01-15 |