Electromagnetic shielding material and methods of formation
US10932399B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2019 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Dec 20, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y10/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Examples include a method of forming an electromagnetic shielding material, the method including: applying a magnetic field to a precursor material that includes first ferromagnetic particles embedded within a first portion of a matrix material and second ferromagnetic particles embedded within a second portion of the matrix material, thereby causing the first ferromagnetic particles and the second ferromagnetic particles to move such that longitudinal axes of the first ferromagnetic particles and the second ferromagnetic particles become more aligned with the magnetic field; thereafter forcing the first portion of the matrix material through a filter, thereby moving the first ferromagnetic particles from the first portion of the matrix material into the second portion of the matrix material; and curing the second portion of the matrix material to form the electromagnetic shielding material. Additional examples include an electromagnetic shielding material and an apparatus for forming an electromagnetic shielding material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.