Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7925186 | Developing device and image-forming apparatus | Hideaki Miyata, Kei Hirata, Takashi Sakamoto | 2011-04-12 |
| 7693477 | Image forming member, toner removing apparatus, developing apparatus, and image forming apparatus | Kei Hirata, Takashi Sakamoto, Hideaki Miyata | 2010-04-06 |
| 7074540 | Image forming apparatus | Katsumi Nukada, Kazuhiro Koseki, Wataru Yamada, Takayuki Yamashita, Masahiro Iwasaki +4 more | 2006-07-11 |
| 5572292 | Cartridge life detecting system | Masahiko Kitamura, Kazuhiro Yoshihara | 1996-11-05 |
| 5508879 | Charge removal brush | Masahiko Kitamura, Kazuhiro Yoshihara, Ikuro Sugiyama, Toyohiro Kanzaki | 1996-04-16 |
| 5216465 | Print cartridge insertable into an image forming apparatus | Akio Arai, Takashi Kanagawa | 1993-06-01 |