Invention Grant
- Patent Title: Rare earth permanent magnet
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Application No.: US16292681Application Date: 2019-03-05
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Publication No.: US10886044B2Publication Date: 2021-01-05
- Inventor: Masashi Ito , Eiichiro Fukuchi
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2018-043650 20180309
- Main IPC: H01F1/058
- IPC: H01F1/058 ; H01F1/053 ; H01F1/055 ; C22C38/00

Abstract:
A rare earth permanent magnet that is high in residual magnetization and coercivity is obtained and includes R and T. A main phase of crystal grains having an Nd5Fe17 type crystal structure is included. In an X-ray diffraction profile drawn by performing an XRD measurement for a rare earth permanent magnet, peaks of detected intensity are present in specific ranges. In which the detected intensity of the peak with the highest detected intensity in the range of 41.60°
Public/Granted literature
- US20190279794A1 RARE EARTH PERMANENT MAGNET Public/Granted day:2019-09-12
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