Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826375 | Image forming apparatus | — | 2004-11-30 |
| 6785480 | Image forming apparatus having a plurality of image forming speeds | Yuichiro Toyohara | 2004-08-31 |
| 6591072 | Image forming apparatus with changeable toner returning electric field application period | Kouichi Hashimoto, Yuichiro Toyohara | 2003-07-08 |