Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560544 | Process for the preparation of acicular .alpha.-FeOOH for magnetic recording materials | Kazuo Nakata, Taro Amamoto, Toshihiko Kawamura | 1985-12-24 |
| 4501774 | Process for the production of cobalt-containing magnetic iron oxide powder | Kokichi Miyazawa, Kazuo Nakata, Ichiro Honma, Masaharu Hirai, Makoto Ogasawara +1 more | 1985-02-26 |
| 4486467 | Process for producing cobalt-containing magnetic iron oxide powder | Kazuo Nakata, Ichiro Honma, Arata Koyama, Masaharu Hirai, Masatoshi Amano | 1984-12-04 |
| 4414245 | Process for producing cobalt containing ferromagnetic iron oxides | Kokichi Miyazawa, Kazuo Nakata, Ichiro Honma, Arata Koyama, Masatoshi Amano | 1983-11-08 |