Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7949265 | Toner supply device, developing device and image forming apparatus with residual quantity of toner based control | Takeshi Murata, Yoshinori Ohtsuka, Masaaki Ohtsuki | 2011-05-24 |
| 7738816 | Image forming apparatus for supplying toner from one of a plurality of toner cartridges | Hideyuki Nishimura, Hisaaki Kobayashi, Hirokazu Izumi | 2010-06-15 |
| 7619791 | Image forming method and image forming device | Motoyuki Itoyama, Syouichi Fujita, Shuichi Morikuni | 2009-11-17 |
| 7415214 | Image forming apparatus and method for detecting amount of remaining toner | Hirokazu Izumi, Hideyuki Nishimura, Hisaaki Kobayashi | 2008-08-19 |
| 6512896 | Image forming apparatus with detachable mounting process cartridge | Masato Asanuma, Kouichi Takenouchi, Hiroo Naoi, Syouichi Fujita, Hideji Saiko | 2003-01-28 |
| 6324351 | Image-forming apparatus unit and image-forming apparatus | Atsushi Kurimoto, Syouichi Fujita, Hideji Saiko | 2001-11-27 |
| 6311027 | Image-forming apparatus which forms images by using a developer | Syouichi Fujita, Hideji Saiko, Mitsuru Tokuyama, Masatsugu Nakamura, Hiroo Naoi +1 more | 2001-10-30 |
| 6226490 | Toner replenishing apparatus and image forming apparatus equipped with same | Syouichi Fujita, Itaru Kawabata, Hideji Saiko, Masato Asanuma, Kouichi Takenouchi +2 more | 2001-05-01 |
| 6167227 | Developing unit and image forming apparatus | Syouichi Fujita, Itaru Kawabata, Toshio Nishino, Hideji Saiko, Mitsuru Tokuyama | 2000-12-26 |
| 6070035 | Image forming apparatus having developer supply device | Syouichi Fujita, Eiji Sato, Masato Asanuma, Itaru Kawabata, Kouichi Takenouchi | 2000-05-30 |
| 6035168 | Developing device having a reduced width in the horizontal direction | Jitsuo Masuda, Hiroshi Kawamoto, Makoto Uehara, Yasutaka Maeda, Takeshi Wakabayashi +6 more | 2000-03-07 |
| 5794097 | Image forming device with residual charge removal control | Kouji Shinkawa, Masaaki Ohtsuki, Mihoko Okada, Mitsuru Tokuyama, Masatsugu Nakamura | 1998-08-11 |
| 5759735 | Method for preparing developer for use in electrophotographic printing | Tadashi Nakamura, Kanshiro Okamoto, Toshihiko Murakami, Yoshiaki Akazawa | 1998-06-02 |
| 5092345 | Uterine cell sampler | — | 1992-03-03 |
| 4981143 | Cell sampler | Takuji Ikesue | 1991-01-01 |