Patent · US Expired

Magnetic developer compositions

US4526851A · kind A · utility

10Cited by
20References
41Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 6, 1983
Grant dateJul 2, 1985
Priority date
Expiry dateSep 6, 2003

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/1087
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Magnetic developer compositions contain ferrous carbon. The ferrous carbon is a fibrous, particulate carbonaceous material comprising carbon fibers and a ferrous group metal component, where the ferrous group metal component is dispersed throughout the carbon fibers as nodules that are initmately associated with and at least partially bonded to the carbon fibers. The ferrous carbons can be used in monocomponent developers, and also in the toner and carrier used for dual component developers.

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