Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
US12153376B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2023 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Nov 30, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The electrophotographic photosensitive member includes a support and a photosensitive layer on the support, in which a surface layer of the electrophotographic photosensitive member contains a particle, the surface layer has a particle partially exposed from the surface layer among the particle contained in the surface layer, the particle has a volume average particle diameter of 50.0 nm or more and 350.0 nm or less; in a cross-section of the surface layer, the number of the particle partially exposed from the surface layer is 80% by number or more based on a total number of the particle contained in the surface layer; and a total volume of an exposed portion of the particle partially exposed from the surface layer is 30% by volume or more and 80% by volume or less based on an entire volume of the particle contained in the surface layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.