Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Akifumi Yamaguchi, Eiji Gyotoku, Yu Sasaki | 2020-06-30 |
| 10691052 | Image forming apparatus | Tamotsu Shimizu, Akifumi Yamaguchi, Kenichi Tamaki, Koji Suenami | 2020-06-23 |