Resin-coated ferrite carrier for electrophotographic developer and electrophotographic developer using the resin-coated ferrite carrier
US8247148B2 · kind B2 · utility
0Cited by
12References
16Claims
0Family size
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Key dates
| Filing date | Feb 22, 2008 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Oct 17, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Employed are a resin-coated ferrite carrier for an electrophotographic developer including a ferrite carrier core material having a BET specific surface area of 900 to 5,000 cm2/g and an apparent density of 2.30 to 2.80 g/cm3, and the electrophotographic developer using this resin-coated ferrite carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.