Resin-filled ferrite carrier for electrophotographic developer and electrophotographic developer using the ferrite carrier
US9588453B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Mar 30, 2015 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Mar 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1138
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided a resin-filled ferrite carrier for an electrophotographic developer, in which a void of a porous ferrite particle used as a ferrite carrier core material is filled with silicone resin, wherein a true specific gravity (Y) of the porous ferrite particle filled with the silicone resin and a Si/Fe value (X) measured by fluorescent X-ray elemental analysis satisfy the following inequality (1):−350X≦Y−4.83≦−100X (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.