Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5609789 | Cobalt-containing magnetic iron oxide and process for producing the same | Kiyoshi Asano, Nobusuke Takumi, Shigeru Takatori, Kouichi Tamura, Tokuo Suita | 1997-03-11 |
| 5041307 | Process for producing magnetic iron oxide particles for magnetic recording | Makoto Ogasawara, Shigeru Takatori | 1991-08-20 |
| 4551327 | Process for producing cobalt-and ferrous iron-containing ferromagnetic iron oxides | Ichiro Honma, Masatoshi Amano, Nobusuke Takumi | 1985-11-05 |
| 4486467 | Process for producing cobalt-containing magnetic iron oxide powder | Kazuo Nakata, Tsuneo Ishikawa, Ichiro Honma, Masaharu Hirai, Masatoshi Amano | 1984-12-04 |
| 4414245 | Process for producing cobalt containing ferromagnetic iron oxides | Kokichi Miyazawa, Kazuo Nakata, Tsuneo Ishikawa, Ichiro Honma, Masatoshi Amano | 1983-11-08 |