Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7167671 | Toner draining mechanism, collected toner container, and image forming apparatus | Takashi Serizawa, Yukiyoshi Oda, Junichi Ito | 2007-01-23 |
| 6560430 | Developing unit having an opening allowing toner to fall directly onto a developing member and supplying member contact area | Noboru Ooishi, Shigenori Koido, Tetsu Koyama | 2003-05-06 |