Issued Patents All Time
Showing 25 most recent of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12321111 | Image forming apparatus | Tsuyoshi Ogawa, Masaaki Sato, Hiroshi Takarada, Koji Fujinaka, Akitoshi Toyota +2 more | 2025-06-03 |
| 12210312 | Image forming apparatus having toner replenishment | Tomio Noguchi, Masaaki Sato, Kenji Matsuzaka, Koji Fujinaka, Takao Sameshima +2 more | 2025-01-28 |
| 12147173 | Transfer unit, image forming apparatus, and method for manufacturing transfer unit, with end seal member abutting against cleaning blade and intermediate transfer belt that abut against each other | Norihiro Matsumoto | 2024-11-19 |
| 12111601 | Image forming apparatus having an opening/closing member that is prevented from closing when a replenishment container is attached to a process unit | Koji Wada, Tsuyoshi Ogawa, Hiroshi Takarada, Kenji Matsuzaka, Takao Sameshima +3 more | 2024-10-08 |
| 12019392 | Process cartridge and electrophotographic image forming apparatus | Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani | 2024-06-25 |
| 11947305 | Image forming apparatus having toner replenishment | Tomio Noguchi, Masaaki Sato, Kenji Matsuzaka, Koji Fujinaka, Takao Sameshima +2 more | 2024-04-02 |
| 11921444 | Transfer unit and image forming apparatus | Norihiro Matsumoto, Akinori Mitsumata | 2024-03-05 |
| 11809095 | Image forming apparatus | Tsuyoshi Ogawa, Masaaki Sato, Hiroshi Takarada, Koji Fujinaka, Akitoshi Toyota +2 more | 2023-11-07 |
| 11803153 | Process cartridge and electrophotographic image forming apparatus | Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani | 2023-10-31 |
| 11774905 | Electrophotographic image forming apparatus | Tetsuji Suzuki, Yoshihiro Ito, Ryuta Murakami | 2023-10-03 |
| 11720055 | Process cartridge and electrophotographic image forming apparatus | Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani | 2023-08-08 |
| 11599059 | Image forming apparatus with condensation control | Shinji Katagiri, Shuichi Tetsuno, Keisuke Ishizumi | 2023-03-07 |
| 11573521 | Image forming apparatus having an opening/closing member that is prevented from closing when a replenishment container is attached to a process unit | Koji Wada, Tsuyoshi Ogawa, Hiroshi Takarada, Kenji Matsuzaka, Takao Sameshima +3 more | 2023-02-07 |
| 11556088 | Image forming apparatus having toner replenishment | Tomio Noguchi, Masaaki Sato, Kenji Matsuzaka, Koji Fujinaka, Takao Sameshima +2 more | 2023-01-17 |
| 11520273 | Driving force transmitting mechanism and image forming apparatus | Fuyuko Koyama | 2022-12-06 |
| 11487222 | Image forming apparatus | Tsuyoshi Ogawa, Masaaki Sato, Hiroshi Takarada, Koji Fujinaka, Akitoshi Toyota +2 more | 2022-11-01 |
| 11435679 | Transfer unit and image forming apparatus | Norihiro Matsumoto, Akinori Mitsumata | 2022-09-06 |
| 11402798 | Process cartridge and electrophotographic image forming apparatus | Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani | 2022-08-02 |
| 11392081 | Process cartridge and electrophotographic image forming apparatus | Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani | 2022-07-19 |
| 11333991 | Transfer unit and image-forming apparatus to increase a ratio of filled toner volume to a toner container volume | Norihiro Matsumoto, Takehiro Hayashi, Akinori Mitsumata, Takeo Kawanami | 2022-05-17 |
| 11209766 | Cleaning device and image forming apparatus | Norihiro Matsumoto, Shohei Ishio, Keisuke Ishizumi, Shinji Katagiri | 2021-12-28 |
| 11169483 | Process cartridge and electrophotographic image forming apparatus | Ryuta Murakami, Tadashi Horikawa, Shunsuke Uratani | 2021-11-09 |
| 11054758 | Transfer unit and image-forming apparatus to increase a ratio of filled toner volume to toner container volume | Norihiro Matsumoto, Takehiro Hayashi, Akinori Mitsumata, Takeo Kawanami | 2021-07-06 |
| 10788788 | Electrophotographic image forming apparatus having a driving-force transmission member featuring first and second helical gear portions with opposing twist directions | Tetsuji Suzuki, Yoshihiro Ito, Ryuta Murakami | 2020-09-29 |
| 10739723 | Image forming apparatus | Satoru Takahashi, Takeo Kawanami, Tetsuji Suzuki | 2020-08-11 |