Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6730448 | Image forming method, process cartridge and image forming apparatus | Susumu Yoshino, Masahiko Hodumi | 2004-05-04 |
| 6677093 | Electrophotographic black toner, electrophotographic developer and image forming method | Susumu Yoshino, Tetsuya Taguchi | 2004-01-13 |