Ferrite core material for resin-filled type carrier, resin-filled type carrier, and electrophotographic developer using the carrier
US8628905B2 · kind B2 · utility
1Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2006 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | May 31, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1137
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A ferrite core material for a resin-filled type carrier, and a resin-filled type carrier which is used as an electrophotographic developer by mixing a toner, sufficiently secure the image density, have no carrier adhesion and can maintain high-quality images over a long period, and an electrophotographic developer using the carrier, are provided. A ferrite core material for a resin-filled type carrier characterized in a void fraction of 10 to 60%, a resin-filled type carrier filled in the carrier core material with a resin, and an electrophotographic developer composed of the resin-filled type carrier and a toner, are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.