Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8463159 | Image forming unit and image forming apparatus including elastically deformable charging roller | Yoshinori Tanaka, Fuminori Moro, Yasuhiro Suzuki, Naoki Matsui | 2013-06-11 |
| 7747198 | Toner cartridge, process cartridge, image cartridge, and image forming apparatus to which those cartridges are attachable | — | 2010-06-29 |
| 4937627 | Image forming apparatus having toner replenishing device interchangeable with a developing unit | Hiroshi Ozawa, Masashi Sakamoto | 1990-06-26 |
| 4922294 | Image forming apparatus | Masashi Sakamoto, Hiroshi Ozawa | 1990-05-01 |
| 4811045 | Electrostatic image forming apparatus | Kouji Matsushita, Nobuaki Nishioka, Tatsumi Makio | 1989-03-07 |
| 4726579 | Sheet stacking arrangement | Akira Kiba | 1988-02-23 |
| 4434503 | Image information output apparatus | Atsuyuki Tanaka, Hiroaki Kojima, Shozo Kaieda, Tokuji Kakiuchi, Nobuaki Nishioka +1 more | 1984-02-28 |
| 4384272 | Image reading apparatus | Atsuyuki Tanaka, Hiroaki Kojima, Shozo Kaieda, Tokuzi Kakiuchi, Nobuaki Nishioka +1 more | 1983-05-17 |