Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833226 | Electrophotographic apparatus, process cartridge and electrophotographic photosensitive member | Kumiko Takizawa, Hideki Ogawa | 2004-12-21 |
| 6703174 | Electrophotographic apparatus and process cartridge | Hideki Ogawa | 2004-03-09 |