Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
US7022446B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jul 11, 2003 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Nov 1, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/14791
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photosensitive member having a surface layer containing at least one of a charge-transporting material and conductive particles and a polymer obtained by polymerizing at least one selected from the group consisting of a polyhydroxymethylbisphenol monomer having a specific structure, a polyhydroxymethylbisphenol oligomer having a specific structure, a polyhydroxymethyltrisphenol monomer having a specific structure and a polyhydroxymethyltrisphenol oligomer having a specific structure; and a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.