Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8249481 | Developing device, image forming apparatus including the same and developing method | Kohichi Takenouchi, Mitsuru Tokuyama, Kiyofumi Morimoto, Hiroo Naoi | 2012-08-21 |
| 7981585 | Cleaning blade | Mitsuru Tokuyama, Kouichi Takenouchi, Hiroo Naoi, Kiyofumi Morimoto | 2011-07-19 |
| 7860415 | Image forming apparatus with toner concentration sensor | Mitsuru Tokuyama, Kouichi Takenouchi, Hiroo Naoi, Kiyofumi Morimoto | 2010-12-28 |
| 7826755 | Image forming apparatus and drive control method of the same | Hiroo Naoi, Kohichi Takenouchi, Mitsuru Tokuyama, Kiyofumi Morimoto, Tomoki Minamikawa | 2010-11-02 |
| 7817934 | Image forming apparatus with power saving sleep mode | Hiroo Naoi, Mitsuru Tokuyama, Kohichi Takenouchi, Kiyofumi Morimoto | 2010-10-19 |
| 7769327 | Developing device and image forming apparatus having a developing roller with a grooved sleeve | Kiyofumi Morimoto, Kohichi Takenouchi, Mitsuru Tokuyama, Hiroo Naoi | 2010-08-03 |