Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634818 | Feeder, image-forming device, and remaining amount detecting method | Kazuyasu Sato, Takuzou Ikeyama, Shinzo Tanaka, Akinori Murata, Osamu Kajitani | 2003-10-21 |
| 5852757 | Electrophotographic image forming apparatus having a device for recovering residual toner | Toshio Tooda, Yoshio Yamaguchi, Nobuo Kuwabara, Mituru Sato, Haruyasu Watanabe +5 more | 1998-12-22 |
| 5848343 | Electrophotographic image-forming apparatus with uniform toner usage control | Takefumi Takahashi, Shizuo Takano, Yoshio Yamaguchi, Hiroshi Kera, Akira Nagahara +2 more | 1998-12-08 |