Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7160660 | Magnetic toner | Tadashi Dojo, Nene Shibayama, Yusuke Hasegawa | 2007-01-09 |
| 7123862 | Image forming apparatus | Yusuke Hasegawa, Tadashi Dojo, Nene Shibayama, Tomohisa Sano | 2006-10-17 |
| 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 |
| 6593052 | Toner, image forming method and process cartridge | Junko Yoshikawa, Satoshi Matsunaga, Tadashi Dojo, Nene Shibayama, Ryota Kashiwabara | 2003-07-15 |
| 6586151 | Toner, process for producing toner image forming method and apparatus unit | Takeshi Naka, Satoshi Matsunaga, Masami Azuma, Takashige Kasuya, Tadashi Dojo +4 more | 2003-07-01 |
| 6537715 | Toner, image-forming method and process cartridge | Takeshi Naka, Masami Azuma, Takashige Kasuya, Tadashi Dojo, Tsuneo Nakanishi +3 more | 2003-03-25 |
| 5773183 | Toner for developing electrostatic images | Tadashi Doujo, Takaaki Kotaki, Yushi Mikuriya | 1998-06-30 |