Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6212340 | Image forming apparatus utilizing a two-component developing apparatus with automatic toner replenishment and developer replacement | Katsumi Sugimoto, Kenji Fuke, Hiroaki Yoshida, Yoshihiro Tonomoto, Eiji Suzuki +3 more | 2001-04-03 |
| 5987280 | Developing device for electrostatic latent image | Kunihiko Sato, Kenji Fuke, Tsutomu Kawai, Eiji Suzuki, Shozo Tonai +3 more | 1999-11-16 |
| 5933690 | Toner recovery device | Katsumi Sugimoto, Kenji Fuke, Hiroaki Yoshida, Yoshihiro Tonomoto, Eiji Suzuki +3 more | 1999-08-03 |
| 5754919 | Electrostatic recording apparatus utilizing superimposition of colors in a toner image to record a multicolor image | Katsumi Sugimoto, Yoshihiro Tonomoto, Yoshinori Wada | 1998-05-19 |
| 5640662 | Hot roller for thermal fixation device having elastomeric and anti-abrasive coverings | Katsumi Sugimoto, Yoshihiro Tonomoto | 1997-06-17 |
| 5617192 | Multicolor electrostatic recording apparatus and electrostatic latent image recording apparatus used therefor | Yoshihiro Tonomoto, Kenji Fuke, Katsumi Sugimoto, Eiji Suzuki, Shozo Tonai +4 more | 1997-04-01 |
| 5517293 | Heat roller fixing apparatus with rotating lamps | Katsumi Sugimoto | 1996-05-14 |
| 5508797 | Color image forming apparatus having toner image forming device | Yoshihiro Tonomoto | 1996-04-16 |