Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6721532 | Fixing device capable of changing smoothness of surface of toner of fixed toner image on sheet and image forming apparatus using said fixing device | Katsuhiro Echigo | 2004-04-13 |
| 6347212 | Image forming apparatus having improved image carrier cleaning | Sadayuki Iwai, Katsuhiro Echigo, Makoto Obu, Takashi Kawashima | 2002-02-12 |
| 6115576 | Image forming apparatus using a developing liquid and including an intermediate transfer body | Tohru Nakano, Sadayuki Iwai, Yusuke Takeda | 2000-09-05 |
| 5923930 | Apparatus for controlling density of liquid developing solution and apparatus for forming images | Takeo Tsukamoto, Makoto Obu, Mie Yoshino, Sadayuki Iwai | 1999-07-13 |