Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6151471 | Toner supplying device, method and image forming apparatus using the same toner supplying device or method | Shunji Katoh, Yuuji Kitajima | 2000-11-21 |
| 6118951 | Image forming apparatus and toner replenishing device therefor | Shunji Kato, Yuji Kitajima, Noboru Kusunose | 2000-09-12 |
| 6097903 | Toner supplying device, toner container therefor and image forming apparatus using same toner supplying device and toner container | Shunji Katoh, Yuuji Kitajima | 2000-08-01 |
| 6091912 | Tower supplying device and image forming apparatus using same toner supplying device | Yuuji Kitajima, Shunji Katoh | 2000-07-18 |
| 5950062 | Toner sorting device for separating reusable toner from used toner and image forming apparatus using the same device | Shunji Katoh, Yuji Kitajima, Satoshi Takano, Shin-ichi Kawahara, Fumihito Itoh +1 more | 1999-09-07 |
| 5909609 | Image forming apparatus with provisions for supplying toner therein | Shunji Kato, Yuji Kitajima, Satoshi Takano, Nobuo Kikuchi, Shinichi Kawahara +1 more | 1999-06-01 |
| 5414499 | Developing device for image forming apparatus having improved air/toner filtering | — | 1995-05-09 |
| 5260749 | Toner cartridge | — | 1993-11-09 |
| 5202732 | Developing device for image forming equipment | — | 1993-04-13 |
| 4982223 | Developer guide for preventing developer from entering gap between developing sleeves | — | 1991-01-01 |