Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8488984 | Toner concentration controller and image forming apparatus including the toner concentration controller | Takeshi Ohkawa, Kiyofumi Morimoto, Masayasu Narimatsu | 2013-07-16 |
| 8406641 | Image forming apparatus and toner supply method | Kazuma Hinoue, Motoyuki Itoyama, Masayasu Narimatsu, Hideji Saikoh, Takeshi Ohkawa +3 more | 2013-03-26 |
| 8340554 | Developing device and image forming apparatus using the same | Kiyofumi Morimoto | 2012-12-25 |
| 8249481 | Developing device, image forming apparatus including the same and developing method | Mitsuru Tokuyama, Kiyofumi Morimoto, Hiroo Naoi, Kazuma Hinoue | 2012-08-21 |
| 8078087 | Toner carrying device and image forming apparatus | Yuhsuke Yoshimoto, Masanobu Deguchi, Takeshi Wakabayashi, Kiyofumi Morimoto, Hiroo Naoi | 2011-12-13 |
| 7826755 | Image forming apparatus and drive control method of the same | Hiroo Naoi, Mitsuru Tokuyama, Kiyofumi Morimoto, Kazuma Hinoue, Tomoki Minamikawa | 2010-11-02 |
| 7817934 | Image forming apparatus with power saving sleep mode | Hiroo Naoi, Mitsuru Tokuyama, Kiyofumi Morimoto, Kazuma Hinoue | 2010-10-19 |
| 7769327 | Developing device and image forming apparatus having a developing roller with a grooved sleeve | Kiyofumi Morimoto, Mitsuru Tokuyama, Hiroo Naoi, Kazuma Hinoue | 2010-08-03 |