Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6463246 | Developer, development method, development device and its elements, and image-forming device | Tsuneo Mizuno, Toshihiro Yukawa, Tomoaki Tanaka, Tetsu Takahashi | 2002-10-08 |
| 6389258 | Development roller and blade used in development device, and development device and image-forming device having the development roller and blade | — | 2002-05-14 |
| 6381424 | Toner charge control for image defect reduction | Tetsu Takahashi, Kunihiko Sato | 2002-04-30 |