Magnet compound material to be compression molded, a molded elongate magnetic, a magnet roller, a developing agent-carrying body, a developing apparatus and an image-forming apparatus
US7572388B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Aug 2, 2006 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Apr 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/0266
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnet compound material to be compression molded, said magnet compound material comprising a magnetic powder and a binder resin particles, wherein a ratio of Dv to Dn is in a range of 1.1 to 1.3, Dv and Dn of the binder resin particles denote the volume average particle diameter and the number average particle diameter, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.