Electrophotographic photosensitive member and electrophotographic apparatus using the electrophotographic photosensitive member
US7229731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2006 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Apr 19, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/08221
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a high-image-quality electrophotographic photosensitive member having a high sensitivity for a wavelength close to 380 to 500 nm, remarkable image resolution property in which absorption of the wavelength is hardly recognized, working-environment characteristic and high safety and superior in abrasion resistance and fabrication easiness and reducing optical memories and an electrophotographic apparatus using the high-image-quality electrophotographic photosensitive member. In the case of an electrophotographic photosensitive member having a substrate, photoconductive layer formed on the substrate and surface layer formed on the photoconductive layer and using silicon and nitrogen atoms as base material and containing an amorphous material containing at least oxygen atoms, the surface layer contains nitrogen atoms as an average concentration shown by the following expression (1) and contains oxygen atoms by the maximum value Omax of the number of oxygen atoms in the thickness direction:0.3≦N/(Si+N)≦0.7. (1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.