Invention Grant
- Patent Title: Method for producing sintered rare-earth magnet, sintered rare-earth magnet, and material for same
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Application No.: US13511465Application Date: 2010-11-18
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Publication No.: US09640305B2Publication Date: 2017-05-02
- Inventor: Tetsuya Shoji , Noritsugu Sakuma , Hidefumi Kishimoto
- Applicant: Tetsuya Shoji , Noritsugu Sakuma , Hidefumi Kishimoto
- Applicant Address: JP Aichi-ken
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Aichi-ken
- Agency: Sughrue Mion, PLLC
- Priority: JP2009-268943 20091126
- International Application: PCT/IB2010/002934 WO 20101118
- International Announcement: WO2011/064636 WO 20110603
- Main IPC: H01F1/11
- IPC: H01F1/11 ; H01F1/057 ; H01F1/06 ; H01F1/08 ; H01F41/02 ; H01F1/058 ; B82Y40/00
Abstract:
A method for producing a sintered rare-earth magnet characterized by sintering a raw material that includes a ribbon-shaped polycrystalline phase with an average grain size of 10 to 200 nm fabricated by rapid solidification of an alloy melt having a rare-earth magnet composition, and a low-melting point phase formed on the surface of the polycrystalline phase and having a melting point lower than the polycrystalline phase.
Public/Granted literature
- US20130092867A1 METHOD FOR PRODUCING SINTERED RARE-EARTH MAGNET, SINTERED RARE-EARTH MAGNET, AND MATERIAL FOR SAME Public/Granted day:2013-04-18
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