Resin-filled ferrite carrier core material for electrophotographic developer, ferrite carrier and electrophotographic developer using the ferrite carrier
US8475988B2 · kind B2 · utility
2Cited by
1References
12Claims
0Family size
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Key dates
| Filing date | Feb 2, 2011 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Feb 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/113
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed are a resin-filled ferrite carrier core material for an electrophotographic developer, including a porous ferrite particle, wherein the composition of the porous ferrite particle is represented by the following formula (1), and part of (MgO) and/or (Fe2O3) in the following formula (1) is replaced with SrO; a ferrite carrier obtained by filling a resin in the voids of the ferrite carrier core material; and an electrophotographic developer using the ferrite carrier:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.