Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5933691 | Toner supply cartridge having a shutter equipped to cooperate with a stopper element and a returner element of a guide to close the shutter automatically, and toner supplying apparatus with such cartridge | — | 1999-08-03 |
| 5845182 | Toner cartridge for an image forming apparatus having stirring rod with bearing | Tsukasa Ichimaru, Yoshifumi Okauchi | 1998-12-01 |
| 5812914 | Toner replenishing device, shutter member, and toner cartridge for use therein | — | 1998-09-22 |
| 5812916 | Conveyer device and toner cartridge equipped with conveyer device | Teruki Kishimoto | 1998-09-22 |
| 5809384 | Developing device and toner cartridge applied to same | Masanobu Maeshima | 1998-09-15 |
| 5737668 | Toner cartridge/collecting tank assembly | — | 1998-04-07 |
| 5257080 | Image forming apparatus and its discharge system | Masami Taniguchi | 1993-10-26 |