Magnetic particles comprising magnetite core and process for producing the same
US5599627A · kind A · utility
24Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1994 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Oct 4, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Magnetic toner particles composed of magnetite core particles containing 0.10 to 1.00 wt % silicon and a hydrous coprecipiate of silica and alumina deposited or adhered on the surfaces of the magnetite core particles. The magnetic toner particles have an area-average diameter of 0.05 to 1.0 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.