Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262262 | Electrophotographic photoreceptor having conductive layer and amorphous carbon overlayer | Shigeru Yagi, Masayuki Nishikawa, Te Nam Roh, Ken-ichi Karakida, Yuzuru Fukuda +1 more | 1993-11-16 |
| 4932859 | Electrophotographic photoreceptor having doped and/or bilayer amorphous silicon photosensitive layer | Shigeru Yagi, Masayuki Nishikawa, Te Nam Roh, Ken-ichi Karakida, Noriyoshi Takahashi +1 more | 1990-06-12 |