Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833055 | Electrophotographic photoreceptor comprising amorphous silicon and amorphous carbon buffer layer | Toyoki Kazama, Koichi Aizawa, Kenichi Hara, Yukio Takano | 1989-05-23 |