Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6600892 | Developing device, charging method used therefor, and printing apparatus having the developing device | Toshimitsu Goto, Kiyoshi Toizumi | 2003-07-29 |
| 6596454 | Toner and manufacturing method thereof | Katsumi Adachi, Masamitsu Sakuma, Kiyoshi Toizumi, Tadashi Iwamatsu, Kenji Mishima | 2003-07-22 |