Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10775727 | Image forming apparatus with a charging amount acquisition unit that performs a charging amount acquisition operation for forming a measurement toner image on an image carrier | Koji Suenami, Yasushi Imanishi, Tamotsu Shimizu | 2020-09-15 |
| 10698337 | Image forming apparatus with developer information acquisition unit that acquires information relating to deterioration of developer based on an acquired toner charging amount | Tamotsu Shimizu, Yasuhiro Tauchi, Eiji Gyotoku, Yu Sasaki | 2020-06-30 |
| 10691052 | Image forming apparatus | Tamotsu Shimizu, Yasuhiro Tauchi, Kenichi Tamaki, Koji Suenami | 2020-06-23 |