Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780555 | Black magnetic iron oxide particles and magnetic toner | Naoki Uchida, Minoru Kouzawa, Hiromitsu Misawa, Koso Aoki | 2004-08-24 |
| 6383637 | Black magnetic iron oxide particles for magnetic toner and process for producing the same | Hiromitsu Misawa, Koso Aoki, Minoru Kozawa, Naoki Uchida, Nobuya Shimo | 2002-05-07 |