Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12222664 | Developing device, process cartridge, and image forming apparatus including an entrance seal which contacts an image bearer | Kei Saito, Yoshihiro Fujiwara, Masaki Takahashi | 2025-02-11 |
| 12189331 | Positioning member, holding device, process cartridge, and image forming apparatus | Kazuki Yogosawa, Tatsuya Kubo, Shinya Karasawa | 2025-01-07 |
| 12033444 | Knocking determination device and knocking control device | Masanori Kurosawa, Kou Tanaka, Kazuhiro Nishigaki | 2024-07-09 |
| 11835887 | Developer accommodating device with screw including screw blade as rotator, developing device, process cartridge, and image forming apparatus | Yoshihiro Fujiwara, Tomohiro Kubota, Shuntaroh Tamaki, Ryusuke Mase | 2023-12-05 |
| 11813874 | Process cartridge and image forming apparatus incorporating same | Tatsuya Kubo, Shinya Karasawa, Kazuki Yogosawa | 2023-11-14 |
| 11275325 | Image forming apparatus including a process cartridge that includes a developing device | Hotaru HASHIKAWA, Yoshihiro Fujiwara, Nobuo Takami, Ryusuke Mase, Kazuki Yogosawa +2 more | 2022-03-15 |
| 11256194 | Developing device, process cartridge, and image forming apparatus | Yoshihiro Fujiwara, Yuki Oshikawa, Ryusuke Mase, Naohiro Kawashima, Hotaru HASHIKAWA | 2022-02-22 |
| 11112731 | Developer container, developing device, and image forming apparatus | Naohiro Kawashima, Yoshihiro Fujiwara, Yuki Oshikawa, Ryusuke Mase, Tsutomu Iwata | 2021-09-07 |
| 11086251 | Image forming apparatus including control circuitry to execute a warm-up operation | Ryusuke Mase, Yoshihiro Fujiwara, Yuki Oshikawa, Naohiro Kawashima | 2021-08-10 |
| 10705484 | Developing device, process cartridge, and image forming apparatus | Yuki Oshikawa, Yoshihiro Fujiwara, Naohiro Kawashima, Ryusuke Mase | 2020-07-07 |
| 10209645 | Vertical biaxial developing device and image forming apparatus and process cartridge incorporating same | Masayuki Yamane, Keiichi Yoshida, Atsushi Kurokawa, Toshiki Hayashi, Tatsuya OHHIRA | 2019-02-19 |
| 10168642 | Developing device and image forming apparatus and process cartridge incorporating same | Tatsuya OHHIRA, Masayuki Yamane, Keiichi Yoshida, Atsushi Kurokawa, Toshiki Hayashi | 2019-01-01 |
| 10114334 | Developing device with casing having upper and lower compartments | Tatsuya OHHIRA, Masayuki Yamane, Keiichi Yoshida, Atsushi Kurokawa, Toshiki Hayashi | 2018-10-30 |