Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5968405 | Cobalt-coated acicular magnetic iron oxide particles | Minoru Yamasaki, Katsunori Fujimoto, Katsumi Yamashita | 1999-10-19 |
| 5648014 | Acicular magnetic iron oxide particles and process for producing the same | Mitsuaki Hatatani, Osamu Okimoto, Yoshifumi Fukuhara, Hideaki Sadamura | 1997-07-15 |
| 5294492 | Acicular magnetic iron oxide particles | Hiroshi Oka, Kazuaki Kouziro, Tomohisa Moriya, Katsumi Yamashita, Kazushi Takama +2 more | 1994-03-15 |