Issued Patents All Time
Showing 1–25 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12306575 | Developer replenishing device and image forming apparatus | Hiroki Ogino | 2025-05-20 |
| 12174558 | Developer replenishment device and image forming apparatus | Hiroki Ogino | 2024-12-24 |
| 12092970 | Image forming apparatus | Kohei Matsuda, Junko Hirata, Kazunori Hashimoto, Yasushi Katsuta, Makoto Hayashida +4 more | 2024-09-17 |
| 11815830 | Toner cartridge having a variable volume pump and a feeding path from the pump portion to a discharge opening | Hiroki Ogino, Tetsuo Uesugi | 2023-11-14 |
| 10962900 | Seal member, unit, and image forming apparatus | Kazuki Matsumoto, Hiraku Sasaki | 2021-03-30 |
| 10642189 | Developer container unit, developing apparatus, and process cartridge | Koji Yamaguchi, Fumito Nonaka, Hiroki Ogino, Shunsuke Uratani | 2020-05-05 |
| 10620567 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani, Tetsuo Uesugi, Kojiro Yasui +1 more | 2020-04-14 |
| 10571857 | Rotatable member, process cartridge and image forming apparatus | Fumito Nonaka, Koji Yamaguchi, Makoto Hayashida | 2020-02-25 |
| 10423120 | Cartridge and image forming apparatus having roller supported by roller supporting portions | Koji Yamaguchi | 2019-09-24 |
| 10310416 | Seal member, unit, and image forming apparatus | Hiraku Sasaki, Kazuki Matsumoto | 2019-06-04 |
| 10191406 | Rotatable member and electrophotographic image forming apparatus including the rotatable member | Koji Yamaguchi, Fumito Nonaka, Makoto Hayashida | 2019-01-29 |
| 10185251 | Reproduction method for developing device | Fumito Nonaka, Seiichi Shinohara | 2019-01-22 |
| 10175599 | Rotating member, process cartridge, and image forming apparatus | Fumito Nonaka, Makoto Hayashida, Hiraku Sasaki, Issei Imamura, Koji Yamaguchi | 2019-01-08 |
| 10175609 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani, Tetsuo Uesugi, Kojiro Yasui +1 more | 2019-01-08 |
| 10162289 | Developer accommodating container, developer accommodating unit, process cartridge, electrophotographic image forming apparatus | Junichi Matsumura, Kazuki Matsumoto, Tatsuo Fujisaki, Kojiro Yasui | 2018-12-25 |
| 10048646 | Image forming apparatus with frame body and detachable cartridge with integrated photosensitive drum | Akira Suzuki, Kazunori Suzuki, Toshiteru Yamasaki, Shigeo Miyabe, Takahito Ueno +3 more | 2018-08-14 |
| 10001727 | Developer accommodating container, developer accommodating unit, process cartridge, and electrophotographic image forming apparatus | Junichi Matsumura, Kazuki Matsumoto, Tatsuo Fujisaki, Kojiro Yasui | 2018-06-19 |
| 9996020 | Roller, rotating member unit, cartridge, and image forming apparatus | Makoto Hayashida, Fumito Nonaka, Hiraku Sasaki, Issei Imamura, Koji Yamaguchi | 2018-06-12 |
| 9885978 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani, Tetsuo Uesugi, Kojiro Yasui +1 more | 2018-02-06 |
| 9857733 | Sealing member having a seal portion and a supporting portion | — | 2018-01-02 |
| 9811049 | Cartridge and image forming apparatus | Akira Suzuki, Shogo Satomura, Tetsuo Uesugi | 2017-11-07 |
| 9665040 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani, Tetsuo Uesugi, Kojiro Yasui +1 more | 2017-05-30 |
| 9599930 | Developer accommodating container, developer accommodating unit, process cartridge, and electrophotographic image forming apparatus | Junichi Matsumura, Kazuki Matsumoto, Tatsuo Fujisaki, Kojiro Yasui | 2017-03-21 |
| 9529304 | Developer accommodating unit, process cartridge, and electrophotographic image forming apparatus | Tetsuo Uesugi, Kojiro Yasui, Masaaki Matsushita, Masatomi Yoshida, Tatsuo Fujisaki +2 more | 2016-12-27 |
| 9500977 | Roller member, roller supporting mechanism, and metallic shaft for forming an image with a laser | Koji Yamaguchi, Kohki Kamata, Motomi Suzuki, Yoshiyuki Beniya, Yukinori Nagata +1 more | 2016-11-22 |