Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10649394 | Method of manufacturing frame unit, method of manufacturing image carrying unit, method of manufacturing cartridge, and cartridge | Tadashi Horikawa, Naoki Matsumaru, Ryuta Murakami, Tetsuya Numata | 2020-05-12 |
| 10627780 | Cartridge and image forming apparatus | Akihiro Fujiwara, Tadashi Horikawa, Naoki Matsumaru, Ryuta Murakami | 2020-04-21 |
| 10564597 | Method for manufacturing image bearing unit and method for manufacturing cartridge | Tetsuya Numata, Ryuta Murakami, Naoki Matsumaru, Tadashi Horikawa | 2020-02-18 |
| D873341 | Process cartridge for image forming apparatus | Tadashi Horikawa, Noriyuki Komatsu, Naoki Matsumaru, Ryuta Murakami, Akihiro Fujiwara +2 more | 2020-01-21 |