Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12181804 | Cleanerless image forming apparatus with toner containing 1.8% by mass or less an external additive having a diameter of 5-50 nanometers | Shogo Kezuka, Yasuhide Matsuno, Akihiro Kawasaki | 2024-12-31 |
| 10036976 | Developing device, and image forming apparatus and process unit incorporating same | Yuji Nagatomo, Tetsumaru Fujita, Masato Tsuji | 2018-07-31 |
| 9958806 | Developing device and image forming apparatus incorporating same | Masato Tsuji, Tetsumaru Fujita, Yuji Nagatomo, Mitsutoshi Kichise, Kazuki Matsumoto | 2018-05-01 |