Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4401462 | Process for producing metallic magnetic powder | Akio Watanabe, Tosiaki Ide | 1983-08-30 |
| 4331489 | Process for producing magnetic powder | Akio Watanabe, Tosiaki Ide | 1982-05-25 |
| 4318961 | Magnetic recording medium | Tosiaki Ide, Akio Watanabe | 1982-03-09 |
| 4248907 | Process for preparing magnetic powder | Ryouichi Horiboto | 1981-02-03 |