US 12,457,725 B2
Sheet-shaped magnetic member
Yasuo Kuriyama, Tokyo (JP); Kouhei Miyano, Tokyo (JP); and Yuichi Ogawa, Tokyo (JP)
Assigned to PROTERIAL, LTD., Tokyo (JP)
Appl. No. 18/700,655
Filed by PROTERIAL, LTD., Tokyo (JP)
PCT Filed Aug. 23, 2023, PCT No. PCT/JP2023/030372
§ 371(c)(1), (2) Date Apr. 11, 2024,
PCT Pub. No. WO2024/043283, PCT Pub. Date Feb. 29, 2024.
Claims priority of application No. 2022-132823 (JP), filed on Aug. 23, 2022.
Prior Publication US 2025/0227905 A1, Jul. 10, 2025
Int. Cl. H05K 9/00 (2006.01); B32B 3/18 (2006.01); B32B 15/04 (2006.01); B32B 15/18 (2006.01); H01F 1/055 (2006.01); H02J 50/70 (2016.01); H02J 50/10 (2016.01)
CPC H05K 9/0075 (2013.01) [B32B 3/18 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); H01F 1/055 (2013.01); H02J 50/70 (2016.02); B32B 2307/208 (2013.01); B32B 2307/706 (2013.01); B32B 2457/00 (2013.01); H02J 50/10 (2016.02)] 12 Claims
OG exemplary drawing
 
1. A sheet-shaped magnetic member comprising
magnetic ribbons with anisotropy,
wherein in the magnetic ribbons, a value of a DC relative magnetic permeability (μr) is different in a first direction in a plane direction of the magnetic ribbons and in a second direction perpendicular to the first direction,
wherein one of the first direction and the second direction with a lower value of the DC relative magnetic permeability (μr) is defined as a direction of anisotropy,
wherein the sheet-shaped magnetic member comprises a first group, a second group, and a third group,
wherein in the first group, at least one magnetic ribbon of the magnetic ribbons is arranged so that the direction of anisotropy is along a first axial direction,
wherein in the second group, at least one magnetic ribbon of the magnetic ribbons is arranged so that the direction of anisotropy is along a second axial direction intersecting the first axial direction,
wherein in the third group, at least one magnetic ribbon of the magnetic ribbons is arranged so that the direction of anisotropy is along a direction different from both the first axial direction and the second axial direction, and
wherein the first group, the second group, and the third group are arranged next to each other.