Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624776 | Electrophotographic photosensitive member provided with a light receiving layer composed of a non-single crystal silicon material containing columnar structure regions and process for the production thereof | Tetsuya Takei, Hirokazu Ohtoshi, Ryuji Okamura, Yasuyoshi Takai | 1997-04-29 |