Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8837976 | Sub power source-type electronic device and image forming apparatus | Koji Kato, Yoichi Hayakawa | 2014-09-16 |
| 8035830 | Image forming system | — | 2011-10-11 |
| 7940090 | Zero-crossing detecting device and image forming device | — | 2011-05-10 |
| 7333762 | Fixing apparatus having a pressurizing mechanism | Noboru Oishi, Masato Sakai, Shigeru Tsunoda | 2008-02-19 |
| 7251446 | Fuser and image forming apparatus | — | 2007-07-31 |
| 7209697 | Fusing device having a pressure member, pushing member fusing belt and roller | Noboru Oishi | 2007-04-24 |