Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6947680 | Image forming apparatus | Yushi Oka, Akihiko Sato, Shinichi Takata, Shigemichi Hamano, Kenji Morita | 2005-09-20 |
| 6931221 | Image forming apparatus having change-over type developing device | — | 2005-08-16 |