Invention Grant
- Patent Title: Powdered-iron magnet and rotating machine using the same
- Patent Title (中): 粉铁磁铁和旋转机使用相同
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Application No.: US11641073Application Date: 2006-12-19
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Publication No.: US08388769B2Publication Date: 2013-03-05
- Inventor: Matahiro Komuro , Yuichi Satsu , Takashi Yasuhara
- Applicant: Matahiro Komuro , Yuichi Satsu , Takashi Yasuhara
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2005-368993 20051222
- Main IPC: H01F1/053
- IPC: H01F1/053
Abstract:
To mold a high-resistance magnet at low temperature, including room temperature, the magnet includes magnetic powders, metallic powders having a lower hardness than the magnetic powders and a high-resistance layer, wherein the magnetic powders occupy a larger volume than the metallic powders. In particular, the high-resistance layer contains a fluorine compound and is placed between the magnetic powder and the metallic powders.
Public/Granted literature
- US20070144615A1 Powdered-iron magnet and rotating machine using the same Public/Granted day:2007-06-28
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