Issued Patents All Time
Showing 1–25 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11693332 | Toner/developer supply device for separate supply of developer and toner | Kenji Tanaka | 2023-07-04 |
| 11474453 | Developing device using spiral structures | Kazuhiko Takemoto | 2022-10-18 |
| 11429038 | Replaceable toner cartridge with inlet port for recycled toner | Kenji Tanaka | 2022-08-30 |
| 11054040 | Electromagnetic valve | — | 2021-07-06 |
| 9043655 | Apparatus and control method | — | 2015-05-26 |
| 8439015 | Fuel injection apparatus | Atsushi Osanai | 2013-05-14 |
| 8327822 | Diesel engine | Gou Asai, Takeshi Takahashi, Terumitsu Takahata, Tomoyuki Tsuda | 2012-12-11 |
| 8064783 | Image forming apparatus | Tomoya Usui, Shuichi Akedo | 2011-11-22 |
| 7983603 | Toner cartridge, developing device and image forming apparatus allowing accurate control of toner replenish amount | Tomoya Usui, Teruyoshi Sudoh | 2011-07-19 |
| 7805098 | Development device and image forming apparatus comprising same | Shigeki Hayashi, Shuichi Akedo, Teruyoshi Sudoh, Tomoya Usui | 2010-09-28 |
| 7676183 | Toner supply device and developing unit using the same for use in an image forming apparatus for performing image formation with toner | Masanobu Deguchi, Ryosuke Mano, Kazuya Koyama | 2010-03-09 |
| 7676185 | Toner container and image forming apparatus including same | Akiko Tsuji, Masanobu Deguchi, Kazuya Koyama, Hiroshi Kubota | 2010-03-09 |
| 7672622 | Support element, toner replenishing device, toner supply apparatus, and image forming apparatus | Akiko Tsuji | 2010-03-02 |
| 7668470 | Toner supplying method, toner supplying device, developing device, and image forming apparatus with controlled toner supply | Akiko Tsuji, Shuhichi Morikuni | 2010-02-23 |
| 7515853 | Toner supply device and developing unit using the same | Masanobu Deguchi, Kazuya Koyama, Ryosuke Mano | 2009-04-07 |
| 7512365 | Toner supply device providing toner agitation and developing unit using the same | Ryosuke Mano | 2009-03-31 |
| 7499656 | Remaining amount of toner detecting apparatus, toner cartridge and image forming apparatus | Takeshi Wakabayashi, Teruyoshi Sudoh | 2009-03-03 |
| 7496320 | Toner supply device providing toner agitation and developing unit using the same | Ryosuke Mano | 2009-02-24 |
| 7333746 | Developing device and image forming apparatus provided with same | Tsutomu Nagata | 2008-02-19 |
| 7251555 | Exhaust gas recirculation system abnormality diagnosis device | — | 2007-07-31 |
| 6741822 | Image forming apparatus with members for holding a cartridge | Yasuyuki Ishiguro, Wataru Yoshida, Toshihide Ohgoshi, Toshio Nishino, Atsushi Inoue | 2004-05-25 |
| 6603940 | Detachable process cartridge for image forming apparatus | Naotaka Funayama, Jun Yamaguchi, Yoshiaki Sanada, Tsutomu Nagata | 2003-08-05 |
| 6567631 | Toner cartridge and image forming apparatus | Naotaka Funayama, Jun Yamaguchi, Yoshiaki Sanada, Tsutomu Nagata | 2003-05-20 |
| 6510300 | Toner cartridge with mixed toner delivery apparatus | Fumito Mizoguchi, Hiroshi Kubota, Takeshi Wakabayashi, Hisashi Kunihiro | 2003-01-21 |
| D464079 | Toner cartridge | Naotaka Funayama, Jun Yamaguchi, Tsutomu Nagata, Yoshiaki Sanada | 2002-10-08 |