Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9541856 | Image forming apparatus with function of setting appropriate development bias | Akihiro Watanabe, Tamotsu Shimizu | 2017-01-10 |
| 9304438 | Developer container and image forming apparatus including the same | Tamotsu Shimizu | 2016-04-05 |
| 9217950 | Developing device and image forming apparatus provided with same | Tamotsu Shimizu | 2015-12-22 |
| 9207565 | Developing device and image forming apparatus provided with same | Tamotsu Shimizu | 2015-12-08 |