Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641964 | Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor | Hiroshi Ikuno, Hidetoshi Kami, Ryohichi Kitajima, Narihito Kojima, Akihiko Matsuyama +8 more | 2003-11-04 |
| 6562529 | Electrophotographic drum-shaped photoconductor and image forming method and apparatus using the same | Narihito Kojima, Ryuta Takeichi, Akiyo Nakajima, Yohta Sakon | 2003-05-13 |
| 6558862 | Electrophotographic photoreceptor and image forming apparatus using the photoreceptor | Narihito Kojima, Ryuta Takeichi, Akiyo Namiki, Yohta Sakon | 2003-05-06 |
| 6521386 | Electrophotographic photoreceptor and electrophotographic image forming method and apparatus using the photoreceptor | Yohta Sakon, Narihito Kojima, Minoru Umeda, Masao Yoshikawa, Ryuta Takeichi +1 more | 2003-02-18 |