Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7160660 | Magnetic toner | Tadashi Dojo, Yuichi Mizoo, Yusuke Hasegawa | 2007-01-09 |
| 7123862 | Image forming apparatus | Yusuke Hasegawa, Yuichi Mizoo, Tadashi Dojo, Tomohisa Sano | 2006-10-17 |
| 6953646 | Toner particles including a sulfur-containing resin | Tadashi Doujo, Yuichi Mizoh, Yusuke Hasegawa | 2005-10-11 |
| 6803164 | Magnetic black toner | Yuichi Mizoo, Tadashi Dojo, Yusuke Hasegawa | 2004-10-12 |
| 6703176 | Toner, process for producing toner image forming method and apparatus unit | Takeshi Naka, Yuichi Mizoo, Satoshi Matsunaga, Masami Azuma, Takashige Kasuya +4 more | 2004-03-09 |
| 6593052 | Toner, image forming method and process cartridge | Junko Yoshikawa, Yuichi Mizoo, Satoshi Matsunaga, Tadashi Dojo, Ryota Kashiwabara | 2003-07-15 |
| 6586151 | Toner, process for producing toner image forming method and apparatus unit | Takeshi Naka, Yuichi Mizoo, Satoshi Matsunaga, Masami Azuma, Takashige Kasuya +4 more | 2003-07-01 |
| 6537715 | Toner, image-forming method and process cartridge | Yuichi Mizoo, Takeshi Naka, Masami Azuma, Takashige Kasuya, Tadashi Dojo +3 more | 2003-03-25 |
| 6232027 | Toner having negative triboelectric chargeability and image forming method | Satoshi Matsunaga, Toshiaki Nakahara, Yuichi Mizoh, Hirohide Tanikawa, Minekazu Endo +1 more | 2001-05-15 |
| 5976752 | Toner and image forming method | Satoshi Matsunaga, Koichi Tomiyama, Yuichi Mizoh, Keita Nozawa, Minekazu Endo +2 more | 1999-11-02 |