Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6718154 | Image forming apparatus and method having a cleaning device with a conductive member having a potential equal to a first removing section | — | 2004-04-06 |
| 6708008 | Image forming apparatus and image forming method with transfer belt drive unit control | Yuichi Yokoyama, Sunao Takenaka | 2004-03-16 |
| 6337968 | Charge apply control in an image forming apparatus | — | 2002-01-08 |
| 6282402 | Image forming apparatus and method for separating and conveying a transferred material | — | 2001-08-28 |
| 6070049 | Image forming apparatus having a conveyor guide for conveying an image receiving medium without disturbing the formed image | — | 2000-05-30 |
| 5857135 | Image forming apparatus equipped with pre-transfer drum charger | Yuichi Yokoyama | 1999-01-05 |
| 5225879 | Image forming apparatus having a convey guide charged oppositely to the polarity of a developing agent | — | 1993-07-06 |
| 5162856 | Abrasive, polishing and friction-reducing agent and means for applying the agent on an image carrier of an image forming apparatus | Hirofumi Izaki | 1992-11-10 |
| 4650310 | Toner density detecting device | Takayuki Suga, Hiroshi Yamanaka | 1987-03-17 |