Invention Application
- Patent Title: RARE EARTH MAGNET
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Application No.: US15560907Application Date: 2016-03-25
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Publication No.: US20180082772A1Publication Date: 2018-03-22
- 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
- Priority: JP2015-061888 20150325; JP2015-061889 20150325; JP2015-061890 20150325
- International Application: PCT/JP2016/059734 WO 20160325
- Main IPC: H01F1/057
- IPC: H01F1/057 ; C22C30/00 ; C22C28/00 ; B22F9/04 ; B22F3/16 ; B22F3/24
Abstract:
A rare earth magnet includes main phase grains having an R2T14B type crystal structure. The main phase grains include Ga. A concentration ratio A (A=αGa/βGa) of the main phase grains is 1.20 or more, where αGa and βGa are respectively a highest concentration of Ga and a lowest concentration of Ga in one main phase grain.
Public/Granted literature
- US10991493B2 Rare earth magnet Public/Granted day:2021-04-27
Information query
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