Issued Patents All Time
Showing 25 most recent of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12298703 | Cartridge including photosensitive drum and developing roller that can be easily separated | Koichi Ooishi, Hiroki Shimizu | 2025-05-13 |
| 12222674 | Cartridge, toner cartridge, and image forming apparatus | Yosuke Kashiide, Yuichi Fukui, Naoki Hayashi, Naoki Maeda, Takashi Kimura +2 more | 2025-02-11 |
| 12045004 | Cartridge including photosensitive drum and developing roller that can be easily separated | Koichi Ooishi, Hiroki Shimizu | 2024-07-23 |
| 11971682 | Cartridge and image forming apparatus | Hideki Kakuta, Yu Akiba, Shuichi Gofuku, Tomofumi Kawamura, Yusuke Atsu +1 more | 2024-04-30 |
| 11789401 | Cartridge including photosensitive drum and developing roller that can be easily separated | Koichi Ooishi, Hiroki Shimizu | 2023-10-17 |
| 11650538 | Cartridge and image forming apparatus | Hideki Kakuta, Yu Akiba, Shuichi Gofuku, Tomofumi Kawamura, Yusuke Atsu +1 more | 2023-05-16 |
| 11619908 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2023-04-04 |
| 11493878 | Cartridge including photosensitive drum and developing roller that can be easily separated | Koichi Ooishi, Hiroki Shimizu | 2022-11-08 |
| 11353821 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2022-06-07 |
| 11204582 | Cartridge and image forming apparatus | Akinobu Hirayama, Takahito Ueno | 2021-12-21 |
| 11199789 | Image forming unit and image forming apparatus | Yohei Kusano, Hiroki Shimizu, Hideki Kakuta | 2021-12-14 |
| 11188021 | Cartridge including an image bearing member and developer bearing member that can be easily separated | Koichi Ooishi, Hiroki Shimizu | 2021-11-30 |
| 11042117 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2021-06-22 |
| 11036179 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2021-06-15 |
| 11022933 | Process cartridge, image forming apparatus and cleaning apparatus | Kazunori Hashimoto, Katsuhiro Kojima, Yasukazu Ikami, Kosuke Ikada, Yoshihiro Mitsui +8 more | 2021-06-01 |
| 10969734 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2021-04-06 |
| 10969733 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2021-04-06 |
| 10962926 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2021-03-30 |
| 10955795 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2021-03-23 |
| 10935926 | Cartridge, process cartridge, and image forming apparatus | Takahito Ueno, Yuuki Nakamura, Kensuke Suzuki | 2021-03-02 |
| 10928751 | Remanufacturing method for developing apparatus and cartridge | Yu Akiba, Koichi Ooishi, Naoya Asanuma | 2021-02-23 |
| D907112 | Process cartridge for image forming apparatus | Yuuki Nakamura | 2021-01-05 |
| D907111 | Process cartridge for image forming apparatus | Yuuki Nakamura | 2021-01-05 |
| 10831150 | Cartridge and image forming apparatus | Akinobu Hirayama, Takahito Ueno | 2020-11-10 |
| 10761479 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2020-09-01 |