Invention Grant
- Patent Title: Magnetoplumbite-type ferrite magnetic material and segment-type permanent magnet derived therefrom
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Application No.: US13983799Application Date: 2012-05-16
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Publication No.: US10141091B2Publication Date: 2018-11-27
- Inventor: Kilsoo Park , Minho Kim , Dongyoung Lee
- Applicant: Kilsoo Park , Minho Kim , Dongyoung Lee
- Applicant Address: KR Daegu
- Assignee: UNION MATERIALS CORPORATION
- Current Assignee: UNION MATERIALS CORPORATION
- Current Assignee Address: KR Daegu
- Agency: Saliwanchik, Lloyd & Eisenschenk
- Priority: KR10-2011-0052109 20110531
- International Application: PCT/KR2012/003853 WO 20120516
- International Announcement: WO2012/165780 WO 20121206
- Main IPC: H01F1/11
- IPC: H01F1/11 ; C01G51/00 ; C04B35/26 ; C04B35/626 ; C04B35/64

Abstract:
A ferrite magnetic material comprising a primary phase of a magnetoplumbite-type hexagonal ferrite, the primary phase having a composition represented by formula (I), can provide improved magnetic properties in terms of the residual magnetic flux density (Br), intrinsic coercive force (iHc), squareness (Hk/iHc), and maximum energy product (B.Hmax). Therefore, a segment-type permanent magnet derived therefrom can be used in the manufacture of small type motors for automobiles, motors for electric equipments as well as for home appliances, and other devices.
Public/Granted literature
- US20130307653A1 MAGNETOPLUMBITE-TYPE FERRITE MAGNETIC MATERIAL AND SEGMENT-TYPE PERMANENT MAGNET DERIVED THEREFROM Public/Granted day:2013-11-21
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