Photoreceptor for electrophotography
US5008170A · kind A · utility
5Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Jun 23, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/14704
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photoreceptor for electrophotography, comprising: a photoconductive layer substantially composed of amorphous silicon, and first, second and third surface layers substantially composed of amorphous silicon added with nitrogen atom, those layers being formed on a support. The thickness d.sub.1, d.sub.2 and d.sub.3 of the first, second and third surface layers satisfies the following relation: d.sub.2 >d.sub.1 and d.sub.2 >d.sub.3, and the nitrogen concentrations c.sub.1, c.sub.2 and c.sub.3 of said first, second and third surface layers satisfy the following relation: c.sub.3 >c.sub.2 >c.sub.1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.