Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5911093 | Multi-color image forming apparatus capable of preventing contamination of re-charger | — | 1999-06-08 |
| 5890038 | Image forming apparatus in which carrying force for a mixing toner by a toner carrying member is made small | Yoshiaki Kobayashi, Fumiteru Gomi | 1999-03-30 |
| 5563690 | Developing sleeve having an outer ceramic layer developing device for developing electrostatic latent images, and image-forming apparatus | Keisuke Hasegawa | 1996-10-08 |
| 5414497 | Powder conveying device | Hiroaki Tsuchiya, Yuji Sakemi, Kenichiro Waki, Nobuyuki Ito, Takehiro Takano +1 more | 1995-05-09 |
| 5270484 | Powder conveying device | Hiroaki Tsuchiya, Yuji Sakemi, Kenichiro Waki, Nobuyuki Ito, Takehiro Takano +1 more | 1993-12-14 |
| 4739370 | Cleaning device | Nobutoshi Yoshida, Hisaaki Senba, Takashi Hino | 1988-04-19 |