Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652060 | Spherical magnetic particles for magnetic toner and process for producing the same | Kazuo Fujioka, Koso Aoki, Hiromitsu Misawa, Minoru Kozawa | 1997-07-29 |
| 5599627 | Magnetic particles comprising magnetite core and process for producing the same | Koso Aoki, Hiromitsu Misawa, Yoji Okano, Minoru Kozawa, Kazuo Fujioka | 1997-02-04 |