Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10908534 | Developing apparatus | — | 2021-02-02 |
| 10866540 | Developing device and image forming device | — | 2020-12-15 |
| 9141026 | Developing apparatus and image forming apparatus | Takeshi Ohkawa | 2015-09-22 |
| 8923715 | Image forming apparatus and image forming method | Motoyuki Itoyama, Takeshi Ohkawa, Tomoki Minamikawa | 2014-12-30 |
| 8855508 | Image forming apparatus, and image forming method | Hideji Saikoh, Masayasu Narimatsu, Kazuma Hinoue | 2014-10-07 |
| 8488984 | Toner concentration controller and image forming apparatus including the toner concentration controller | Takeshi Ohkawa, Kohichi Takenouchi, Masayasu Narimatsu | 2013-07-16 |
| 8406641 | Image forming apparatus and toner supply method | Kazuma Hinoue, Motoyuki Itoyama, Masayasu Narimatsu, Kohichi Takenouchi, Hideji Saikoh +3 more | 2013-03-26 |
| 8340554 | Developing device and image forming apparatus using the same | Kohichi Takenouchi | 2012-12-25 |
| 8285178 | Image forming apparatus | — | 2012-10-09 |
| 8249481 | Developing device, image forming apparatus including the same and developing method | Kohichi Takenouchi, Mitsuru Tokuyama, Hiroo Naoi, Kazuma Hinoue | 2012-08-21 |
| 8224211 | Developing device and image forming apparatus and developer conveying method using the same | — | 2012-07-17 |
| 8078087 | Toner carrying device and image forming apparatus | Yuhsuke Yoshimoto, Masanobu Deguchi, Takeshi Wakabayashi, Kohichi Takenouchi, Hiroo Naoi | 2011-12-13 |
| 7981585 | Cleaning blade | Mitsuru Tokuyama, Kouichi Takenouchi, Hiroo Naoi, Kazuma Hinoue | 2011-07-19 |
| 7860415 | Image forming apparatus with toner concentration sensor | Mitsuru Tokuyama, Kouichi Takenouchi, Hiroo Naoi, Kazuma Hinoue | 2010-12-28 |
| 7826755 | Image forming apparatus and drive control method of the same | Hiroo Naoi, Kohichi Takenouchi, Mitsuru Tokuyama, Kazuma Hinoue, Tomoki Minamikawa | 2010-11-02 |
| 7817934 | Image forming apparatus with power saving sleep mode | Hiroo Naoi, Mitsuru Tokuyama, Kohichi Takenouchi, Kazuma Hinoue | 2010-10-19 |
| 7769327 | Developing device and image forming apparatus having a developing roller with a grooved sleeve | Kohichi Takenouchi, Mitsuru Tokuyama, Hiroo Naoi, Kazuma Hinoue | 2010-08-03 |
| 7616912 | Image forming apparatus including a charger and intake/exhaust | Yasuhiro Nishimura, Toshiaki Ino, Mitsuru Tokuyama, Takashi Kitagawa | 2009-11-10 |
| 7498559 | Optical discharge apparatus and image forming apparatus containing the same | Yasuhiro Nishimura, Toshiaki Ino, Mitsuru Tokuyama, Takashi Kitagawa | 2009-03-03 |
| 7430381 | Developing device with corrected toner density sensing, control method, and computer-readable storage medium | Kouichi Takenouchi, Mitsuru Tokuyama, Hiroo Naoi | 2008-09-30 |
| 7283755 | Remaining toner detection apparatus and image forming apparatus provided with same | Yasuyuki Ishiguro, Akira Nakakuma, Hideaki Kurimoto | 2007-10-16 |
| 7272332 | Image forming apparatus and density correction data creation method used therein | Takashi Kitagawa, Mitsuru Tokuyama, Toshiaki Ino, Yasuhiro Nishimura | 2007-09-18 |
| 7264664 | Ink composition, recording method and recorded image utilizing the same, ink set and ink head | Takanori Kamoto, Hiromi Nakatsu, Masanori Kinomoto, Hiroaki Nakaya | 2007-09-04 |
| 7251422 | Image correction method and image forming apparatus | Mitsuru Tokuyama, Toshiaki Ino, Takashi Kitagawa, Yasuhiro Nishimura | 2007-07-31 |
| 6929689 | Ink for inkjet recording | Hiromi Nakatsu, Masanori Kinomoto, Takanori Kamoto, Ichiro Fujii, Hiroaki Nakaya | 2005-08-16 |