Magnetic shielding material
US5045637A · kind A · utility
44Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Jul 17, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B15/011
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic shielding material is described which has a laminate structure comprising a ferromagnetic sheet having a high saturation magnetic flux density, a ferromagnetic sheet having a high magnetic permeability and a non-magnetic sheet. The high saturation magnetic flux density sheet includes a sheet of mold steel, silicon steel or an iron-cobalt alloy. The high magnetic permeability sheet includes an amorphous alloy foil or a laminate thereof. The magnetic shielding material may further have at least one foil of an electromagnetic wave-shielding material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.