Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829454 | Image forming apparatus with improved transfer efficiency | Shinji Yasukawa, Nobumasa Abe, Mikio Furumizu | 2004-12-07 |
| 6819899 | Image forming apparatus employing work function relationships | Shinji Yasukawa, Nobumasa Abe, Mikio Furumizu, Kaneo Yoda | 2004-11-16 |