Invention Grant
- Patent Title: Method of manufacturing a magnetic element
- Patent Title (中): 磁性元件的制造方法
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Application No.: US10842813Application Date: 2004-05-11
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Publication No.: US07219416B2Publication Date: 2007-05-22
- Inventor: Osamu Inoue , Junichi Kato , Nobuya Matsutani , Hiroshi Fujii , Takeshi Takahashi
- Applicant: Osamu Inoue , Junichi Kato , Nobuya Matsutani , Hiroshi Fujii , Takeshi Takahashi
- Applicant Address: JP Osaka
- Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2000-131573 20000428; JP2000-387743 20001220; JP2001-027878 20010205
- Main IPC: H01F7/06
- IPC: H01F7/06
Abstract:
The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 Ω·cm. When a coil is embedded in this composite magnetic body, a miniature magnetic element can be obtained that has a high inductance value and is excellent in DC bias characteristics.
Public/Granted literature
- US20040207954A1 Composite magnetic body, and magnetic element and method of manufacturing the same Public/Granted day:2004-10-21
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