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1.发明授权Magnetic core comprising a bond magnet including magnetic powder whose particle's surface is coated with oxidation-resistant metal 有权磁芯具有粘结磁体，包括磁铁粉末，其中涂覆有抗氧化的金属粒子的表面
公开(公告)号：EP1209703B1
公开(公告)日：2009-08-19
申请号：EP01128190.4
申请日：2001-11-27
发明人： Fujiwara, Teruhiko , Ishii, Masayoshi , Hoshi, Haruki , Isogai, Keita , Matsumoto, Hatsuo , Ito, Toru
IPC分类号： H01F3/14
CPC分类号： H01F29/146 , H01F3/10 , H01F3/14 , H01F17/04 , H01F2003/103
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2.发明授权Inductance component comprising a permanent magnet greater in sectional area than a magnetic path and disposed in a magnetic gap 有权用永久磁铁，其是比在其部分中的磁路的部分更大，并且其感应部件被安装在空气间隙
公开(公告)号：EP1263005B1
公开(公告)日：2004-11-17
申请号：EP02011979.8
申请日：2002-05-29
发明人： Sato, Mizuho , Okita, Kazuyuki , Ito, Toru , Daigaku, Gen
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3.发明授权
公开(公告)号：EP1207540B1
公开(公告)日：2004-02-04
申请号：EP01127561.7
申请日：2001-11-19
发明人： Okita, Kazuyuki , Ito, Toru , Sato, Toshiya , Fujiwara, Teruhiko
IPC分类号： H01F29/14
CPC分类号： H01F29/146
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4.发明公开Inductance component comprising a permanent magnet greater in sectional area than a magnetic path and disposed in a magnetic gap 有权用永久磁铁，其是比在其部分中的磁路的部分更大，并且其感应部件被安装在空气间隙
公开(公告)号：EP1263005A1
公开(公告)日：2002-12-04
申请号：EP02011979.8
申请日：2002-05-29
发明人： Sato, Mizuho , Okita, Kazuyuki , Ito, Toru , Daigaku, Gen
摘要： An inductance component includes a magnetic core (11, 12) forming a magnetic circuit having a magnetic gap, an exciting coil (14) wound around the magnetic core, and a permanent magnet (13) disposed in the magnetic gap. The permanent magnet is greater in sectional area than the magnetic core.
摘要翻译： 电感部件包括形成具有磁间隙，围绕磁芯缠绕的励磁线圈（14），并在磁隙中设置在永久磁铁（13）的磁路的磁芯（11，12）。 永磁体更大比磁芯截面积。
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5.发明公开
公开(公告)号：EP1202295A3
公开(公告)日：2003-10-15
申请号：EP01125566.8
申请日：2001-10-25
发明人： Fujiwara, Teruhiko , Ishii, Masayoshi , Hoshi, Haruki , Isogai, Keita , Ito, Toru , Ambo, Tamiko
IPC分类号： H01F3/14
CPC分类号： H01F3/14 , H01F3/10 , H01F17/04 , H01F29/146 , H01F2003/103
摘要： A low-profile magnetic core capable of reducing the thickness of an inductor component is provided. The magnetic core includes at least one gap in a magnetic path, and a permanent magnet is inserted in the gap. The magnetic core has an alternating current magnetic permeability at 20 kHz of 45 or more in a magnetic field of 120 Oe under application of direct current, and has a core loss characteristic of 100 kW/m 3 or less under the conditions of 20 kHz and the maximum magnetic flux density of 0.1 T. An inductor component is produced by applying at least one turn of coil to the aforementioned magnetic core.
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6.发明授权Inductance component having a permanent magnet in the vicinity of a magnetic gap 有权在的空气间隙的区域中的永久磁铁感应部件
公开(公告)号：EP1178501B1
公开(公告)日：2004-11-17
申请号：EP01118915.6
申请日：2001-08-03
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7.发明授权Magnetic core having magnetically biasing bond magnet and inductance part using the same 有权磁芯与使用此一电流偏置粘结磁铁和电感器组件
公开(公告)号：EP1211699B1
公开(公告)日：2004-02-04
申请号：EP01128189.6
申请日：2001-11-27
发明人： Fujiwara, Teruhiko , Ishii, Masayoshi , Hoshi, Haruki , Isogai, Keita , Ito, Toru , Ambo, Tamiko
IPC分类号： H01F3/14
CPC分类号： H01F3/14 , H01F1/0558 , H01F3/10 , H01F17/04 , H01F29/146 , H01F2003/103
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8.发明公开Magnetic core comprising a bond magnet including magnetic powder whose particle's surface is coated with oxidation-resistant metal 有权磁芯具有粘结磁体，包括磁铁粉末，其中涂覆有抗氧化的金属粒子的表面
公开(公告)号：EP1209703A3
公开(公告)日：2003-10-15
申请号：EP01128190.4
申请日：2001-11-27
发明人： Fujiwara, Teruhiko , Ishii, Masayoshi , Hoshi, Haruki , Isogai, Keita , Matsumoto, Hatsuo , Ito, Toru
IPC分类号： H01F3/14
CPC分类号： H01F29/146 , H01F3/10 , H01F3/14 , H01F17/04 , H01F2003/103
摘要： Disposed in a magnetic gap of a magnetic core, a magnetically biasing permanent magnet is a bond magnet comprising rare-earth magnetic powder and a binder resin. The rare-earth magnetic powder has an intrinsic coercive force of 5kOe or more, a Curie temperature of 300°C or more, and an average particle size of 2.0-50µm. The rare-earth magnetic power has a surface coated with a metallic layer containing an oxidation-resistant metal. In order to enable a surface-mount to reflow, the rare-earth magnetic powder may have the intrinsic coercive force of 10kOe or more, the Curie temperature of 500°C and the average particle size of 2.5-50µm. In addition, to prevent specific resistance from degrading, the metallic layer desirably may be coated with a glass layer consisting of low-melting glass having a softening point less than a melting point of the oxidation-resistant metal.
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