Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6706459 | Electrophotographic drum-shaped photoconductor and image forming method and apparatus using the same | Narihito Kojima, Ryuta Takeichi, Akiyo Nakajima, Yohta Sakon | 2004-03-16 |
| 6686114 | Electrophotographic image forming method and apparatus | Yohta Sakon, Narihito Kojima, Hiroshi Ikuno | 2004-02-03 |