Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9134650 | Developing device and image forming apparatus | Kazuhiro Saito, Tomohiro Kawasaki, Kazuteru Ishizuka, Tatsuya Furuta | 2015-09-15 |
| 8811832 | Image forming apparatus | Natsuko Minegishi, Hiroyuki Saito | 2014-08-19 |
| 8712308 | Lubricant coating device and image forming apparatus | Ryoei Ikari, Kazutoshi Kobayashi, Shunichi Takaya, Tatsuya Furuta | 2014-04-29 |
| 8682229 | Developing device with bias voltage and image forming apparatus | Natsuko Minegishi, Naoki Tajima, Hiroyuki Saito | 2014-03-25 |
| 8666294 | Carrier removing device and image forming apparatus | Natsuko Minegishi, Naoki Tajima, Hiroyuki Saito | 2014-03-04 |
| 8503901 | Image forming apparatus with a toner contamination detecting device | Hiroshi Akita, Natsuko Minegishi, Hiroyuki Saito | 2013-08-06 |
| 8401439 | Image forming apparatus | Hiroyuki Saito, Naoki Tajima, Natsuko Minegishi | 2013-03-19 |
| 8369750 | Developing device | Hiroshi Akita, Natsuko Minegishi | 2013-02-05 |
| 8369754 | Developing device and image forming apparatus | Hiroshi Akita | 2013-02-05 |
| 8244164 | Image forming apparatus with two developing rollers, and an electrode therebetween | Hiroyuki Saito, Hiroshi Akita, Natsuko Minegishi | 2012-08-14 |
| 8175502 | Developing device, image forming apparatus and developing roller | Hiroshi Akita | 2012-05-08 |
| 7801470 | Developing device, process unit, and image forming apparatus | Natsuko Minegishi, Hiroshi Akita | 2010-09-21 |
| 7512351 | Image forming apparatus which suppresses selective development of toner | Hiroshi Akita, Isamu Miura | 2009-03-31 |
| 7362990 | Image forming apparatus | Hiroshi Akita, Isamu Miura | 2008-04-22 |
| 7356289 | Image forming apparatus with toner forced discharge mode | Hiroshi Akita, Isamu Miura | 2008-04-08 |
| 7343122 | Image forming apparatus for preventing worm-shaped image irregularities | — | 2008-03-11 |
| 7343111 | Electrophotographic image forming apparatus for forming toner images onto different types of recording materials based on the glossiness of the recording materials | — | 2008-03-11 |
| 7340189 | Image forming apparatus and image adjusting method | Hiroshi Akita, Isamu Miura | 2008-03-04 |
| 7251440 | Development apparatus and image formation apparatus | Kunio Shigeta, Hiroshi Akita | 2007-07-31 |
| 6985685 | Developing device and image forming apparatus | Kunio Shigeta, Seiji Yamaguchi, Toru Komatsu, Hiroshi Akita | 2006-01-10 |
| 6798999 | Image forming apparatus | Kunio Shigeta, Hiroshi Akita | 2004-09-28 |