Patent · US Expired

Photosensitive element for electrophotography

US4346159A · kind A · utility

9Cited by
11References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 14, 1978
Grant dateAug 24, 1982
Priority date
Expiry dateFeb 14, 1998

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G5/14708
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A photosensitive element for electrophotography comprising an electrically conductive backing member, a photoconductive layer overlying the backing member, and a transparent electrically insulating surface layer on the photoconductive layer, wherein the transparent electrically insulating surface layer contains a charge-retentive material or a layer of a charge-retentive material is interposed between the photoconductive layer and the transparent electrically insulating surface layer so as to form a charge-retentive layer in the boundary between the photoconductive layer and the transparent electrically insulating layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.