Abb Schweiz Ag

Exmet Ab

Westinghouse Electric Sweden Ab

Björgvin Hjörvarsson

Peter Isberg

Vassilios Kapaklis

Per Tägtström

Max Wolff

Hauke Carstensen

Mattias Unosson

Fridrik Magnus

Björn Rebensdorff

An apparatus for, and a method of controlling magnetic anisotropy in a magnetic material comprises directing a layer of powdered metal material to a heat conducting substrate. Electromagnetic energy is applied to the powdered material sufficient to melt the powdered material which is subsequently cooled to create a solid layer on the substrate. An external magnetic field is applied to the material during at least the cooling step so as to imprint the solid magnetic material layer with magnetic anisotropy. Various novel magnetic structures can be fabricated using the technique.

Methods for manufacturing magnetic materials

An electrical device including an electrode arrangement having a magnet, and an electrode, an electrically conducting movable device, movable relative to the electrode arrangement and spaced apart from the electrode arrangement, whereby a gap (G) is formed therebetween, and a suspension including a liquid, a plurality of magnetic particles dispersed in the liquid and a plurality of non-magnetic electrically conducting particles dispersed in the liquid, which non-magnetic electrically conducting particles have higher electric conductivity than the magnetic particles, wherein the suspension) extends between the electrically movable device and the electrode arrangement in the gap (G), and wherein the magnet is arranged to provide a magnetic field through the suspension to thereby align the non-magnetic electrically conducting particles between the electrode arrangement and the electrically conducting movable device to obtain an electrical connection between the electrode arrangement and the electrically conducting movable device.

Electrical device with low friction contact parts

Growing community of inventors

Uppsala, Sweden

Björgvin Hjörvarsson