Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909865 | Process for producing a ferromagnetic metal powder having an oxidized coating | Etsuo Nakagawa, Masaru Niwano, Tetsushi Yamamoto | 1990-03-20 |
| 4806335 | Process for producing acicular iron .alpha.-oxyhydroxide particle powder | Masayoshi Saito | 1989-02-21 |