Ferrite carrier for electrophotographic developer and electrophotographic developer containing the same
US5976747A · kind A · utility
8Cited by
5References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 26, 1998 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Feb 26, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1085
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A ferrite carrier for electrophotographic developers which is represented by formula: EQU (MnO).sub.x (MgO).sub.y (Fe.sub.2 O.sub.3).sub.z wherein x+y+z=100 mol %, and part of MnO, MgO and/or Fe.sub.2 O.sub.3 is substituted with SnO.sub.2, and has a saturation magnetization of 20 to 43 emu/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.