Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10649371 | Developing device, process cartridge, and image forming apparatus incorporating same | Kei Saito, Yoshiyuki Fukuda, Masaaki Yamada | 2020-05-12 |
| 9772579 | Developing device and image forming apparatus incorporating same | Yuki Oshikawa, Akira Azami, Yoshiko Ogawa, Masaaki Yamada, Yoshihiro Fujiwara +6 more | 2017-09-26 |
| 9625851 | Developing device and image forming apparatus incorporating same | Yuki Oshikawa, Akira Azami, Yoshiko Ogawa, Masaaki Yamada, Yoshihiro Fujiwara +6 more | 2017-04-18 |
| 9594332 | Developing device and image forming apparatus and process cartridge incorporating same | Ichiro Kadota | 2017-03-14 |
| 9201336 | Developing device and image forming apparatus including a toner bearing member having a predetermined relationship with toner | Osamu Endou, Yasuyuki Ishii, Yoshiko Ogawa, Hideyasu Seki, Toshio Koike +1 more | 2015-12-01 |
| 9158228 | Development device and image forming apparatus incorporating same | Yoshiko Ogawa, Osamu Endou, Yasuyuki Ishii, Hideyasu Seki, Tetsuro Hirota | 2015-10-13 |
| 9128416 | Developing device, process cartridge, image forming apparatus, and developer transfer method | Ichiro Kadota | 2015-09-08 |
| 9008556 | Development device and image forming apparatus and process unit incorporating same | Katsuhiro Aoki, Masaaki Yamada, Masayuki Yamane, Atsushi Kurokawa, Yuuki Satoh | 2015-04-14 |
| 8965254 | Development device, and image forming apparatus and process cartridge incorporating same | Yoshiko Ogawa, Yasuyuki Ishii, Osamu Endou | 2015-02-24 |
| 8929782 | Development device, and image forming apparatus and process cartridge incorporating same | Osamu Endou, Yasuyuki Ishii, Tetsuro Hirota, Yoshiko Ogawa, Atsushi Kurokawa +1 more | 2015-01-06 |