Invention Grant
- Patent Title: Material for anisotropic magnet and method of manufacturing the same
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Application No.: US12683125Application Date: 2010-01-06
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Publication No.: US09281106B2Publication Date: 2016-03-08
- Inventor: Keiko Hioki , Takao Yabumi , Hayato Hashino
- Applicant: Keiko Hioki , Takao Yabumi , Hayato Hashino
- Applicant Address: JP Aichi-Ken
- Assignee: DAIDO STEEL CO., LTD.
- Current Assignee: DAIDO STEEL CO., LTD.
- Current Assignee Address: JP Aichi-Ken
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2008049685 20080229; JP2009002054 20090107; JP2009192178 20090821
- Main IPC: H01F1/00
- IPC: H01F1/00 ; H01F1/057 ; B22F1/00 ; C21D8/12 ; C22C38/00 ; B22F3/24 ; H01F41/02

Abstract:
A material for anisotropic magnet, comprising, (1) a Pr-T-B—Ga-based composition containing Pr: 12.5 to 15.0 atomic percent, B: 4.5 to 6.5 atomic percent, Ga: 0.1 to 0.7 atomic percent, and the balance of T and inevitable impurities, wherein T is Fe or obtained by substituting Co for a portion of the Fe; and having, (2) a degree of magnetic alignment of 0.92 or more, wherein the degree of magnetic alignment is defined by remanence (Br)/saturation magnetization (Js); and (3) a crystal grain diameter of 1 μm or less.
Public/Granted literature
- US09324485B2 Material for anisotropic magnet and method of manufacturing the same Public/Granted day:2016-04-26
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