Invention Grant
- Patent Title: Rare earth magnet
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Application No.: US15560795Application Date: 2016-03-25
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Publication No.: US10726980B2Publication Date: 2020-07-28
- Inventor: Wakako Okawa , Syota Goto , Yoshinori Fujikawa
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@284405f8 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@11e5068c com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3f30f5f2
- International Application: PCT/JP2016/059731 WO 20160325
- International Announcement: WO2016/153055 WO 20160929
- Main IPC: H01F1/057
- IPC: H01F1/057 ; H01F1/053 ; C22C38/00 ; H01F1/08 ; C22C38/02 ; C22C38/06 ; C22C38/10 ; C22C38/16 ; B22F3/16 ; B22F3/24 ; B22F9/04 ; C22C28/00 ; C22C30/00 ; B22F3/00
Abstract:
A rare earth magnet includes main phase grains having an R2T14B type crystal structure. The main phase grains include B. A concentration ratio A (A=αB/βB) of the main phase grains is 1.05 or more, where αB and βB are respectively a highest concentration of B and a lowest concentration of B in one main phase grain.
Public/Granted literature
- US20180114616A1 RARE EARTH MAGNET Public/Granted day:2018-04-26
Information query
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