Invention Grant
- Patent Title: Ferrite sintered magnet
-
Application No.: US16267400Application Date: 2019-02-05
-
Publication No.: US11456096B2Publication Date: 2022-09-27
- Inventor: Hiroyuki Morita , Masanori Ikeda , Yoshitaka Murakawa , Taku Murase
- Applicant: TDK Corporation
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: JPJP2018-062087 20180328
- Main IPC: H01F1/10
- IPC: H01F1/10 ; H01F1/11 ; C01G49/00 ; C04B35/26
Abstract:
There is provided a ferrite sintered magnet having a high residual magnetic flux density.
A ferrite sintered magnet 2 includes a plurality of main phase particles 5 including ferrite having a hexagonal structure, the number of core-shell structured particles 5A having a core 7 and a shell 9 covering the core 7, among the main phase particles 5, is smaller than the number of the main phase particles 5 other than the core-shell structured particles 5A.
A ferrite sintered magnet 2 includes a plurality of main phase particles 5 including ferrite having a hexagonal structure, the number of core-shell structured particles 5A having a core 7 and a shell 9 covering the core 7, among the main phase particles 5, is smaller than the number of the main phase particles 5 other than the core-shell structured particles 5A.
Public/Granted literature
- US20190304641A1 FERRITE SINTERED MAGNET Public/Granted day:2019-10-03
Information query
