Patent · US Expired

Carrier for electrophotography

US4861693A · kind A · utility

3Cited by
18References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 19, 1988
Grant dateAug 29, 1989
Priority date
Expiry dateFeb 19, 2008

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S525/93
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

This invention relates to carriers for electrophotography comprising a binder component including a binder resin, a polymeric-magnetic coordination complex, and an inorganic magnetic material dispersed in the binder component at the ratio of 100-900 parts by weight to 100 parts by weight of the binder component, which effect the electrical resistance as well as magnetic properties. Carriers of the invention are suitable, in particular, for a copier furnished with a high rotation developing sleeve.

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