Patent · US Expired

Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus

US7022446B2 · kind B2 · utility

10Cited by
6References
17Claims
0Family size

Inventors

Key dates

Filing dateJul 11, 2003
Grant dateApr 4, 2006
Priority date
Expiry dateNov 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.