公开(公告)号：US12075606B2

公开(公告)日：2024-08-27

申请号：US17607991

申请日：2020-05-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael S. Graff ,  Derek J. Dehn ,  Paul T. Hines ,  Charles L Bruzzone ,  Bharat R. Acharya ,  Ronald D. Jesme ,  William J. Kopecky ,  Jennifer J. Sokol ,  Sergei A. Manuilov

IPC: H05K9/00 ,  H01F1/20 ,  H01F1/26 ,  H01F1/28 ,  H01F27/36 ,  H01F38/14 ,  H01F41/16

CPC classification number: H05K9/0075 ,  H01F1/20

Abstract: A magnetic shielding film includes opposing first and second major surfaces and a plurality of particles dispersed therebetween, each particle having a magnetic permeability, a thickness H along a thickness direction of the particle, and a longest dimension L along a length direction of the particle orthogonal to the thickness direction, L/H greater than or equal to 2, the particles defining a plurality of voids therebetween, the length directions of at least 60% of the particles oriented within 5.5 degrees of a same orientation direction.

公开(公告)号：US11962367B2

公开(公告)日：2024-04-16

申请号：US17800384

申请日：2021-02-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Seong-Woo Woo ,  Jinwook Kim ,  Jung Ju Suh ,  Jennifer J. Sokol ,  Charles L Bruzzone

IPC: H04B5/79 ,  H01F5/00 ,  H01F27/28 ,  H01F38/14 ,  H04B5/26 ,  H02J50/10

CPC classification number: H04B5/79 ,  H01F5/003 ,  H01F27/2804 ,  H01F38/14 ,  H04B5/26 ,  H02J50/10

Abstract: An antenna for transfer of information or energy is described. The antenna includes an electrically conductive first layer having a width in a thickness direction of the antenna and extending longitudinally along a length of the first layer between first and second longitudinal ends of the first layer, and an electrically insulative thermally conductive second layer bonded to the first layer along the length of the first layer. The first and second layers are wound to form a plurality of substantially concentric loops. A width and a length of the second layer are substantially co-extensive with the respective width and length of the first layer so as to expose opposing longitudinal edge surfaces of the first layer along the length of the first layer. Coils and assemblies useful for making coils are also described.