Patent · US Active

Magnetic multilayer sheet

US10658096B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Xiaoming Kou · Newark, US
Michael S. Graff · Woodbury, US
Jeffrey M. Florczak · Maplewood, US
Steven L. Johnson · Roseau, US
Rui Yang · Austin, US
Carlos A. Barrios · Woodbury, US
Steven D. Theiss · Woodbury, US
Kevin W. Gotrik · Hudson, US

Key dates

Filing date	Feb 9, 2017
Grant date	May 19, 2020
Priority date	—
Expiry date	Feb 9, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB32B2519/02
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A multilayer magnetic sheet is described which comprises a plurality of stacked magnetic component layers separated by first electrically insulating layers. Each of the plurality of magnetic component layers comprises a plurality of isolated magnetic sublayers having a magnetic layer thickness of less than one micron. The multilayer magnetic sheet has a magnetic fraction between about 5% and about 80%; a total magnetic thickness of greater than or equal to 5 microns; and a relative composite permeability of greater than about 20.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.