Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11892782 | Powder accommodating container, powder supply device, developing device, and image forming apparatus | Takashi ANZAI, Takashi Akaike | 2024-02-06 |
| 11880147 | Developing device and image forming apparatus | — | 2024-01-23 |
| 10775716 | Image forming unit and image forming apparatus | Takashi Akaike, Shota Makita, Yosuke KUWATA | 2020-09-15 |
| 10761473 | Developing device capable of suppressing the passing of a relatively large amount of developer and image forming apparatus therewith | Kazunari Yamagishi | 2020-09-01 |
| 10684588 | Image forming unit and image forming apparatus | Takashi Akaike | 2020-06-16 |
| 10684572 | Developing device and image forming apparatus | Takashi Akaike | 2020-06-16 |
| 10663881 | Developing device with airflow | Takashi Akaike | 2020-05-26 |
| 10289022 | Developing device and image forming apparatus | Takashi Akaike | 2019-05-14 |
| 10031440 | Developing device and image forming member including a clearance closing member with grooves | Takashi Nakamura, Takashi Sakamoto, Munenobu Okubo | 2018-07-24 |
| 9164418 | Developing device, and image forming apparatus using the same | Masaru Sakuma, Munenobu Okubo, Shinji Mitsui, Yasuyuki Tsutsumi, Kazuaki Iikura +4 more | 2015-10-20 |
| 9128413 | Developing device, and image forming apparatus using the same | Shinji Mitsui, Munenobu Okubo, Yasuyuki Tsutsumi, Kazuaki Iikura, Yosuke Ninomiya +4 more | 2015-09-08 |
| 9063466 | Developing device having an attaching unit for attaching developer and image forming apparatus including the same | Munenobu Okubo, Yasuyuki Tsutsumi, Shinji Mitsui, Kazuaki Iikura, Yosuke Ninomiya +4 more | 2015-06-23 |
| 9002244 | Image forming apparatus including developing device using toner holding member with specific surface roughness | Yoshifumi Ozaki, Shinji Mitsui, Akihiko Noda, Masahiro Andoh, Hisashi Murase +6 more | 2015-04-07 |
| 8688018 | Developing device and image forming apparatus including the same | Tsutomu Uezono, Yasuyuki Tsutsumi | 2014-04-01 |
| 8238802 | Developing unit, image retainer unit and image forming apparatus | Tomoyuki Kawakami, Koichi Tanaka | 2012-08-07 |
| 7620352 | Developing device having a projection portion for inhibiting scattering a developer and image forming apparatus using such developing device | Ichiro Kawahara | 2009-11-17 |