Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6728504 | Developing device using a magnet brush and image forming apparatus including the same | Osamu Ariizumi, Takeyoshi Sekine | 2004-04-27 |
| 6498917 | Image forming apparatus for enhancing the durability of a vibration preventing member and protecting a rotary unit from defective rotation | — | 2002-12-24 |
| 6442364 | Image forming apparatus having a developer carrier capable of preventing toner adhesion | Tsukuru Kai, Nobutaka Takeuchi, Takeyoshi Sekine, Osamu Ariizumi | 2002-08-27 |
| 6321056 | Developing device for an image forming apparatus | — | 2001-11-20 |
| 6285099 | Image forming apparatus | — | 2001-09-04 |
| 6009293 | Optical communication device communicating information between revolving type developing device and image forming apparatus | — | 1999-12-28 |
| 5384628 | Developing device for image forming equipment | Kazuyuki Sugihara, Takayuki Maruta, Kazuo Nojima, Noboru Sawayama, Kaoru Yoshimatsu +2 more | 1995-01-24 |