Invention Grant
- Patent Title: Magnetic material and motor using the same
- Patent Title (中): 磁性材料和电机使用相同
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Application No.: US13029348Application Date: 2011-02-17
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Publication No.: US08821649B2Publication Date: 2014-09-02
- Inventor: Takayuki Kanda , Matahiro Komuro , Hiroyuki Suzuki , Yuichi Satsu
- Applicant: Takayuki Kanda , Matahiro Komuro , Hiroyuki Suzuki , Yuichi Satsu
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2010-079790 20100330
- Main IPC: H01F1/00
- IPC: H01F1/00 ; H01F1/058

Abstract:
Characteristics of a magnetic material are improved without using a heavy rare earth element as a scarce resource. By incorporating fluorine into a magnetic powder and controlling the crystal orientation in crystal grains, a magnetic material securing magnetic characteristics such as coercive force and residual flux density can be fabricated. As a result, the resource problem with heavy rare earth elements can be solved, and the magnetic material can be applied to magnetic circuits that require a high energy product, including various rotating machines and voice coil motors of hard discs.
Public/Granted literature
- US20110240909A1 MAGNETIC MATERIAL AND MOTOR USING THE SAME Public/Granted day:2011-10-06
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