Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5790139 | Ink jet printing apparatus which utilizes different voltages applied to different groups of ejecting members in accordance with image data | Koji Umeno, Yuki Ito, Yoshiko Uriu | 1998-08-04 |
| 5781203 | Ink ejecting device for use in an ink jet printing apparatus | Yoshiko Uriu | 1998-07-14 |
| 5640251 | Image reading device | Koji Umeno, Yuki Ito, Yoshiko Uriu | 1997-06-17 |
| RE34344 | Developing device | Shingo Sakato, Shuji Fujisawa, Takeshi Tsuda, Yousuke Ohata, Hiroshi Hiraoka | 1993-08-17 |
| 5150224 | Image forming apparatus with selectable automatic document size or copy paper size priority modes | Kazuhiro Mizude, Hirofumi Matsuda, Haruo Yamamoto | 1992-09-22 |
| 5146275 | Composite image forming apparatus | Yosuke Ohata, Kazuto Hori | 1992-09-08 |
| 4860053 | Color image forming apparatus having a plurality of developing units | Haruo Yamamoto, Takao Ichihashi, Shuji Fujisawa, Takeshi Tsuda | 1989-08-22 |
| 4851873 | Developing device | Shingo Sakao, Shuji Fujisawa, Takeshi Tsuda, Yousuke Ohata, Hiroshi Hiraoka | 1989-07-25 |