Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5314750 | Magnetic iron oxide particles and method of producing same | Atsushi Takedoi, Mamoru Tanihara, Tosiharu Harada, Masaru Isoai | 1994-05-24 |
| 5294492 | Acicular magnetic iron oxide particles | Hiroshi Oka, Kazuaki Kouziro, Toshitada Shigemura, Tomohisa Moriya, Katsumi Yamashita +2 more | 1994-03-15 |