Composites of coercive particles and superparamagnetic particles
US4824587A · kind A · utility
23Cited by
9References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 18, 1985 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Mar 18, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Composites of coercive particles and superparamagnetic particles comprise an intimate admixture of said particles in a dielectric matrix. The particles are admixed in such a fashion as to provide a composite which exhibits a coercivity which behaves as if the coercive particles and the superparamagnetic particles interact. Composites exhibiting such controlled coercivity are useful in the manufacture of transformers, magnets and magnetic tapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.