Patent · US Expired

Inverse multiactive electrophotographic element

US5213927A · kind A · utility

15Cited by
17References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 26, 1992
Grant dateMay 25, 1993
Priority date—
Expiry dateMar 26, 2012

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G5/0637
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

New inverse multiactive electrophotographic elements comprise, in order: PA0 an electrically conductive layer; PA0 a charge-transport layer; PA0 a first charge-generation layer containing a charge-generation material and a charge-transport material; and PA0 a second charge-generation layer containing a charge-generation material and a charge-transport material different from and less susceptible to positive-surface-charge injection than the charge-transport material of the first charge-generation layer.

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