Issued Patents All Time
Showing 1–25 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12405566 | Electrophotographic image forming apparatus, cartridge and drum unit | Masanari Morioka, Takeo Kawanami | 2025-09-02 |
| 12242224 | Cartridge including a memory mounting portion and image forming apparatus including the cartridge | Yukio Kubo, Yosuke Kashiide | 2025-03-04 |
| 12242222 | Electrophotographic image forming apparatus, cartridge and drum unit | Masanari Morioka, Takeo Kawanami | 2025-03-04 |
| 12228866 | Image forming apparatus and developing cartridge | Yukio Kubo, Daisuke Abe, Mitsuhiro Sato, Masahiro Suetsugu, Kengo Sakai | 2025-02-18 |
| 12204263 | Developer accommodating device, developing device, cartridge and image forming apparatus | Naoya Asanuma, Daisuke Abe, Kazutaka Sueshige | 2025-01-21 |
| 12174555 | Developing device | Takuya Kawakami, Yuji Kawaguchi | 2024-12-24 |
| 12066785 | Cartridge and image forming apparatus | Sohta Sugimoto, Shunsuke Hijikata, Naoki Hayashi, SEIYA ISHIKAWA, Shinichi Nishida +4 more | 2024-08-20 |
| 12038716 | Cartridge, drum unit and image forming apparatus | Toshiki Fujino, Akinobu Hirayama, Teruhiko Sasaki, Tachio Kawai, Daisuke Abe +2 more | 2024-07-16 |
| 12032330 | Cartridge, drum unit and image forming apparatus | Toshiki Fujino, Akinobu Hirayama, Teruhiko Sasaki, Tachio Kawai, Daisuke Abe +2 more | 2024-07-09 |
| 11906927 | Cartridge, drum unit and image forming apparatus | Toshiki Fujino, Akinobu Hirayama, Teruhiko Sasaki, Tachio Kawai, Daisuke Abe +2 more | 2024-02-20 |
| 11841636 | Developing device to reduce leakage of developer | Takuya Kawakami, Yuji Kawaguchi | 2023-12-12 |
| 11841675 | Cartridge including a memory mounting portion and image forming apparatus including the cartridge | Yukio Kubo, Yosuke Kashiide | 2023-12-12 |
| 11835907 | Drum unit, process cartridge and image forming apparatus | Shigemi Kamoshida | 2023-12-05 |
| 11822277 | Image forming apparatus | Yukio Kubo, Daisuke Abe | 2023-11-21 |
| 11789378 | Image forming apparatus and developing cartridge | Yukio Kubo, Daisuke Abe, Mitsuhiro Sato, Masahiro Suetsugu, Kengo Sakai | 2023-10-17 |
| 11782360 | Developer accommodating device, developing device, cartridge and image forming apparatus | Naoya Asanuma, Daisuke Abe, Kazutaka Sueshige | 2023-10-10 |
| 11774876 | Developing unit | SEIYA ISHIKAWA, Masanari Morioka | 2023-10-03 |
| 11609524 | Image forming apparatus | Yukio Kubo, Daisuke Abe | 2023-03-21 |
| 11579565 | Cartridge including a memory mounting portion and image forming apparatus including the cartridge | Yukio Kubo, Yosuke Kashiide | 2023-02-14 |
| 11561485 | Developing apparatus to increase adhesion between a seal member and a regulation portion in the developing apparatus | Takuya Kawakami, Yuji Kawaguchi | 2023-01-24 |
| 11526125 | Cartridge and method for disassembling cartridge | — | 2022-12-13 |
| 11334017 | Drum unit, process cartridge and image forming apparatus | Shigemi Kamoshida | 2022-05-17 |
| 11275326 | Developing device to reduce leakage of developer | Takuya Kawakami, Yuji Kawaguchi | 2022-03-15 |
| 11204575 | Image forming apparatus | Yukio Kubo, Daisuke Abe | 2021-12-21 |
| 11204566 | Image forming apparatus and developing cartridge | Yukio Kubo, Daisuke Abe, Mitsuhiro Sato, Masahiro Suetsugu, Kengo Sakai | 2021-12-21 |