Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5170210 | Image forming apparatus having environmental detecting means for achieving optimum image density | — | 1992-12-08 |
| 4591261 | Image forming apparatus with variable rotational speed of developers | Yoshiharu Taniyama | 1986-05-27 |