Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9798271 | Image forming apparatus having toner storing container | — | 2017-10-24 |
| 8649706 | Charging apparatus and image forming apparatus including same | Hiroo Naoi, Katsuya Takano, Yasuhiro Nishimura, Masaki Ueji | 2014-02-11 |
| 8369747 | Charging device and image forming apparatus | Masaki Ueji, Hiroo Naoi, Katsuya Takano, Yasuhiro Nishimura | 2013-02-05 |
| 8168360 | External additive, toner, and image forming apparatus | Shinya Mimura, Yasuhiro Nishimura | 2012-05-01 |
| 8090286 | Image forming apparatus and toner supply container used therefor | Shinya Mimura, Yasuhiro Nishimura, Masahiro Seki | 2012-01-03 |
| 8023863 | Charging apparatus and image forming apparatus | Rika Hayashi, Masanobu Yamamoto | 2011-09-20 |
| 7773892 | Image forming apparatus with variable photoconductor charging and variable developing bias voltage | Yasuhiro Nishimura, Akiko Tsuji | 2010-08-10 |
| 7764907 | Charging apparatus and image forming apparatus | — | 2010-07-27 |
| 7684735 | Charging apparatus and image forming apparatus | Syouichi Fujita, Yasuhiro Nishimura, Susumu Murakami | 2010-03-23 |
| 7616912 | Image forming apparatus including a charger and intake/exhaust | Yasuhiro Nishimura, Mitsuru Tokuyama, Takashi Kitagawa, Kiyofumi Morimoto | 2009-11-10 |
| 7567771 | Charging apparatus and image forming apparatus | — | 2009-07-28 |
| 7498559 | Optical discharge apparatus and image forming apparatus containing the same | Yasuhiro Nishimura, Mitsuru Tokuyama, Kiyofumi Morimoto, Takashi Kitagawa | 2009-03-03 |
| 7327965 | Charging units capable of use in and image forming apparatus having different processing speeds | — | 2008-02-05 |
| 7272332 | Image forming apparatus and density correction data creation method used therein | Takashi Kitagawa, Mitsuru Tokuyama, Kiyofumi Morimoto, Yasuhiro Nishimura | 2007-09-18 |
| 7251422 | Image correction method and image forming apparatus | Mitsuru Tokuyama, Kiyofumi Morimoto, Takashi Kitagawa, Yasuhiro Nishimura | 2007-07-31 |
| 6907212 | Photoreceptor drum and image forming apparatus | Yoshikazu Harada, Toshio Yamanaka, Eiichi Kido | 2005-06-14 |
| 6847791 | Image formation controlling method and image forming apparatus | Takashi Kitagawa, Kaori Dakeshita, Takayuki Yamanaka, Eiichi Kido | 2005-01-25 |
| 6678491 | Optical electric charge removal device and image formation apparatus including the same | Eiichi Kido, Takayuki Yamanaka, Toshio Yamanaka, Hideaki Kadowaki, Mitsuyoshi Terada +2 more | 2004-01-13 |
| 6516162 | Image forming apparatus with automatic density compensation | Hiroshi Kawamoto, Masayasu Narimatsu, Takashi Kitagawa, Ken Yamagishi, Yuka Sakagami | 2003-02-04 |
| 5923922 | Image forming apparatus with flying toner detecting device | Toshihisa Ishida, Katuaki Sumida, Kanshiro Okamoto, Jitsuo Masuda, Masato Asanuma +3 more | 1999-07-13 |
| 5839018 | Toner density control for an image forming apparatus | Masato Asanuma, Kanshiro Okamoto, Hideji Saiko, Toshihisa Ishida, Katsuaki Sumida +8 more | 1998-11-17 |
| 5734948 | Image stabilizer | Katsuhiro Nagayama, Jitsuo Masuda, Toshihisa Ishida, Katsuaki Sumida, Hideji Saiko | 1998-03-31 |
| 5532794 | Electrophotographic image stabilization control apparatus | Mitsuru Tokuyama, Motoyuki Itoyama, Kunio Ohashi, Haruo Nishiyama | 1996-07-02 |
| 5402209 | Electrophotographic reproduction apparatus controllable toner density and method thereof for controlling an electrophotographic reproduction process | Motoyuki Itoyama, Mitsuru Tokuyama, Kunio Ohashi | 1995-03-28 |