Electromagnetic interference shielding material
US4474676A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1983 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Aug 12, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/009
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to an electromagnetic interference shielding material used for shielding radios and the like from electromagnetic waves emitted from a computer or the like. In the prior art, a zinc flame-sprayed shielding material is applied on the housing of a computer or the like to shield it from electromagnetic waves. The present invention provides an electromagnetic interference shielding material having an improved durability and shield effectiveness (SE) and comprising a ferromagnetic amorphous alloy having a conductivity of 10.sup.2 .OMEGA..sup.-1 .multidot.cm.sup.-1 or more and a permeability of 100 or more at 1 kHz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.