Invention Grant
- Patent Title: Soft magnetic material and method of producing powder compact
- Patent Title (中): 软磁材料及其制造方法
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Application No.: US11909962Application Date: 2005-03-29
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Publication No.: US07641745B2Publication Date: 2010-01-05
- Inventor: Kazuhiro Hirose , Haruhisa Toyoda , Takao Nishioka
- Applicant: Kazuhiro Hirose , Haruhisa Toyoda , Takao Nishioka
- Applicant Address: JP Osaka
- Assignee: Sumitomo Electric Industries, Ltd.
- Current Assignee: Sumitomo Electric Industries, Ltd.
- Current Assignee Address: JP Osaka
- Agency: Osha•Liang LLP
- International Application: PCT/JP2005/005890 WO 20050329
- International Announcement: WO2006/106566 WO 20061012
- Main IPC: H01F1/147
- IPC: H01F1/147 ; H01F1/20 ; H01F1/22 ; H01F1/24

Abstract:
A soft magnetic material used for producing a powder compact has a plurality of iron particles having a Vickers hardness HV of less than 800 and satisfying the relationship of α/β≧2.5, where α represents the specific surface area of the iron particles measured by a gas adsorption method (Brunauer-Emmett-Teller (BET) method) and β represents the apparent specific surface area of the iron particles calculated from the average particle diameter measured by a laser diffraction/scattering method.
Public/Granted literature
- US20080253917A1 Soft Magnetic Material and Process For Producing Green Compact Public/Granted day:2008-10-16
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