Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803164 | Magnetic black toner | Tadashi Dojo, Nene Shibayama, Yusuke Hasegawa | 2004-10-12 |
| 6703176 | Toner, process for producing toner image forming method and apparatus unit | Takeshi Naka, Satoshi Matsunaga, Masami Azuma, Takashige Kasuya, Tadashi Dojo +4 more | 2004-03-09 |