Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548648 | Process for preparing a monoazo metal complex salt compound for charge control agent and toner for developing electrostatic images | Masashi Yasumatsu, Akihiro Tada | 2003-04-15 |
| 6534231 | Charge control agent and toner for developing electrostatic images | Akihide Isoda | 2003-03-18 |