Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8909112 | Image forming apparatus having support members with predetermined electric potentials | Tomoko Takahashi, Naoyuki Ozaki, Ryuji Yoshida, Nobuyuki Koinuma, Hiroaki Maeda +4 more | 2014-12-09 |
| 8843033 | Developer supplier, image forming apparatus, developer supplying method and image forming method | Takuzi Yoneda | 2014-09-23 |
| 8818255 | Image forming apparatus with fixing liquid applicator | Ryuji Yoshida, Nobuyuki Koinuma, Tomoko Takahashi, Mikio Ishibashi, Hideki Zemba +4 more | 2014-08-26 |
| 8774694 | Image forming apparatus including sealed fixing liquid applying section | Ryuji Yoshida, Nobuyuki Koinuma, Tomoko Takahashi, Hideaki Kanaya, Shunichi Hashimoto +4 more | 2014-07-08 |
| 8761651 | Image forming apparatus | Ryuji Yoshida, Nobuyuki Koinuma, Tomoko Takahashi, Mikio Ishibashi, Hideki Zemba +4 more | 2014-06-24 |
| 8588658 | Image forming apparatus, developer discharge method, and computer program product thereof | — | 2013-11-19 |
| 8422897 | Image forming apparatus | Hirokatsu Suzuki, Kazuhisa Sudo, Masanori Kawasumi, Shunichi Hashimoto, Akira Shinshi +6 more | 2013-04-16 |
| 8385793 | Image forming apparatus preventing gaps between a conveyor belt and transfer sheet | Masaharu Furuya, Masahiko Satoh, Masanori Kawasumi, Hirokatsu Suzuki, Hirohmi Tamura +6 more | 2013-02-26 |
| 8320799 | Recycling image forming apparatus | Ryuji Yoshida, Mikio Ishibashi, Nobuyuki Koinuma, Hideki Zenba, Naoyuki Ozaki +4 more | 2012-11-27 |
| 8165508 | Developer loading method, loaded developer accommodating container, developer replenishment device, and image forming apparatus | Keiko Matsumoto, Emi Kita, Satoru Miyamoto, Junichi Terai, Maiko Koeda | 2012-04-24 |
| 8131187 | Development device, image forming apparatus including the same, and method of removing developer therefrom | — | 2012-03-06 |
| 8107861 | Image forming apparatus and image forming method capable of automatically collecting developer from development device | — | 2012-01-31 |
| 8086117 | Image forming apparatus and developer replenishing method | Takuzi Yoneda, Keiko Matsumoto, Yuki Oshikawa | 2011-12-27 |
| 8086146 | Image forming method and apparatus for effectively supplying developer | Kiyonori Tsuda, Hiroyuki Okaji | 2011-12-27 |
| 8014704 | Developing agent storage device and image forming apparatus having same in which the chargeability level of the toner, storage device, and carrier have a specific relationship | Keiko Matsumoto, Emi Kita, Satoru Miyamoto, Junichi Terai | 2011-09-06 |
| 7991330 | Developing unit including developer conveyance system having supply path, recovery path, and agitation path, process cartridge including developing unit, and image forming apparatus including process cartridge | Yuki Oshikawa, Koichi Kato, Hiroyuki Okaji, Kiyonori Tsuda, Emi Kita +1 more | 2011-08-02 |
| 7962071 | Developing device and image forming apparatus using same | Kiyonori Tsuda, Koichi Kato, Yuki Oshikawa, Yasufumi Takahashi, Eriko Maruyama +5 more | 2011-06-14 |
| 7925190 | Developer supply device and image forming apparatus comprising same | Keiko Matsumoto, Hiroyuki Okaji | 2011-04-12 |
| 7801467 | Developing-agent container, method of manufacturing developing-agent container, developing-agent supplying device, and image forming apparatus | Hiroyuki Okaji, Keiko Matsumoto | 2010-09-21 |
| 7783209 | Image forming apparatus and method of activating the apparatus during filling with developing agent | Sadayuki Iwai, Yuki Oshikawa | 2010-08-24 |
| 7280773 | Image forming apparatus for determining completion of a toner-end recovery operation | — | 2007-10-09 |
| 5978643 | Electrophotographic apparatus which reduces running cost by starting image forming processes in response to sheet detectors | — | 1999-11-02 |
| 5111251 | Apparatus for cleaning photoconductive belt | Kazuhiro Yuasa | 1992-05-05 |