Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6621989 | Image forming apparatus and a unit detachably mountable on an image forming apparatus comprising means for detecting the amount of developer contained in a developer container | Yasunao Otomo | 2003-09-16 |
| 6615001 | Cartridge, image forming apparatus and method of controlling the image forming apparatus | Yasunao Otomo | 2003-09-02 |