Invention Application
- Patent Title: R-T-B BASED PERMANENT MAGNET
- Patent Title (中): R-T-B基永久磁铁
-
Application No.: US14385855Application Date: 2014-02-12
-
Publication No.: US20160086703A1Publication Date: 2016-03-24
- Inventor: Kenichi SUZUKI , Yuji UMEDA , Ryuji HASHIMOTO
- Applicant: TDK CORPORATION
- Priority: JP2013-059680 20130322
- International Application: PCT/JP2014/053111 WO 20140212
- Main IPC: H01F1/057
- IPC: H01F1/057 ; H02K21/02
Abstract:
A R-T-B based permanent magnet which not only has equivalent magnetic properties as the existing Nd—Fe—B based permanent magnet as well as light mass but also can be suitably used as a magnet for field system of a permanent magnet synchronous rotating machine. The magnet can be obtained in a case where the composition of the compound for forming the main phase is (R1-x(Y1-zLaz)x)2T14B (R is rare earth element(s) consisting of one or more elements of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, T is one or more transition metal elements with Fe or Fe and Co as essential elements, 0.0
Public/Granted literature
- US09953751B2 R-T-B based permanent magnet Public/Granted day:2018-04-24
Information query
IPC分类:
