Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342589 | Process for preparing iron compound particles for use in magnetic recording | Kazushi Ohshima, Mitsuro Matsunaga, Haruo Sekiguchi, Fujio Hayashi | 1982-08-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342589 | Process for preparing iron compound particles for use in magnetic recording | Kazushi Ohshima, Mitsuro Matsunaga, Haruo Sekiguchi, Fujio Hayashi | 1982-08-03 |