Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641969 | Magnetic toner with negative polarity for developing latent electrostatic images, and image forming apparatus using the same | Tomio Kondou | 2003-11-04 |
| 6503676 | Toner, external additive therefor and image forming method using the toner | Hiroshi Yamashita, Tomio Kondou, Hideki Sugiura, Hachiroh Tosaka, Hitoshi Ueda +1 more | 2003-01-07 |