公开(公告)号：US20050072955A1

公开(公告)日：2005-04-07

申请号：US10955883

申请日：2004-09-30

申请人： Takeshi Takahashi ,  Nobuya Matsutani ,  Kazuaki Onishi

发明人： Takeshi Takahashi ,  Nobuya Matsutani ,  Kazuaki Onishi

IPC分类号： C22C33/02 ,  B22F3/24 ,  H01F1/147 ,  H01F1/33 ,  H01F1/34 ,  H01F41/02 ,  H01F1/00

CPC分类号： H01F1/33 ,  H01F1/1475 ,  H01F1/14766 ,  H01F1/344 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/12028 ,  Y10T428/12056 ,  Y10T428/12465

摘要： A composite sintered magnetic material comprises a kind of metal powder at least one selected from the group consisting of Fe, Fe—Si type, Fe—Ni type, Fe—Ni—Mo type, and Fe—Si—Al type, and a ferrite layer formed from a kind of ferrite powder at least one selected from the group consisting of Ni—Zn type, Mn—Zn type, and Mg—Zn type, wherein a diffusion layer is formed by sintering between both of these to integrates the both.

摘要翻译： 复合烧结磁性材料包括选自Fe，Fe-Si型，Fe-Ni型，Fe-Ni-Mo型和Fe-Si-Al型中的至少一种金属粉末和铁 - 由选自Ni-Zn型，Mn-Zn型和Mg-Zn型中的至少一种铁氧体粉末形成的层，其中通过两者之间的烧结形成扩散层以使两者均一。

公开(公告)号：US06312531B1

公开(公告)日：2001-11-06

申请号：US09217587

申请日：1998-12-22

申请人： Nobuya Matsutani ,  Yuji Mido ,  Kazuaki Onishi

发明人： Nobuya Matsutani ,  Yuji Mido ,  Kazuaki Onishi

IPC分类号： C22C3302

CPC分类号： H01F1/26 ,  H01F1/14791 ,  H01F41/0246

摘要： Soft magnetic powder of Fe—Al—Si system of which magnetostrictive constant &lgr; takes a positive value at the room temperature is employed to produce a magnetic composite article so that a temperature characteristic of core-loss of the article takes a negative value at the room temperature. Excellent magnetic characteristics such as a low core-loss and a high permeability can be obtained at a high frequency band.

摘要翻译： 使用其中磁致伸缩常数兰德在室温下为正值的Fe-Al-Si系统的软磁性粉末制造磁性复合制品，使得制品的芯损失的温度特性在室内呈负值 温度。 可以在高频带下获得优异的磁特性，例如低磁心损耗和高磁导率。

公开(公告)号：US08328955B2

公开(公告)日：2012-12-11

申请号：US13144592

申请日：2010-01-14

申请人： Yuya Wakabayashi ,  Takeshi Takahashi ,  Nobuya Matsutani

发明人： Yuya Wakabayashi ,  Takeshi Takahashi ,  Nobuya Matsutani

IPC分类号： H01F1/18

CPC分类号： H01F41/0246 ,  B22F2998/00 ,  C21D6/008 ,  C21D8/12 ,  C22C19/03 ,  C22C30/00 ,  C22C33/0228 ,  C22C38/02 ,  C22C38/06 ,  C22C38/08 ,  C22C38/34 ,  C22C2202/02 ,  C22F1/10 ,  H01F1/1475 ,  H01F1/14766 ,  H01F1/14791 ,  H01F1/24 ,  H01F1/33 ,  H01F3/08 ,  B22F2303/01 ,  B22F2301/35 ,  B22F2303/05 ,  B22F2301/052 ,  B22F2301/15 ,  B22F2302/25 ,  B22F2302/35

摘要： A composite magnetic material is manufactured having magnetic properties that can excellently cope with the decreasing size and increasing electric current of magnetic elements, such as choke coils, and can be used in a high frequency range, a dust core using the composite magnetic material, and a method of manufacturing the same. The dust core includes magnetic metal powder and an insulating material, in which the magnetic metal powder has a Vickers hardness (Hv) of 230 ≦ Hv≦ 1000, the insulating material has a compressive strength of 10000 kg/cm2 or lower and is in a mechanical collapsed state, and the insulating material in a mechanical collapsed state is interposed in the magnetic metal powder.

摘要翻译： 制造具有磁性能的复合磁性材料，其可以极好地应对诸如扼流线圈的磁性元件的减小的尺寸和增加的电流，并且可以在高频范围内使用，使用复合磁性材料的压粉芯和 其制造方法。 防尘芯包括磁性金属粉末和绝缘材料，其中磁性金属粉末的维氏硬度（Hv）为230＆lt; 1lE; Hv＆nlE; 1000，绝缘材料的抗压强度为10000kg / cm 2以下，处于机械收缩状态，机械收缩状态的绝缘材料插入到磁性金属粉末中。

公开(公告)号：US20100219925A1

公开(公告)日：2010-09-02

申请号：US12681703

申请日：2008-10-28

申请人： Kenichi Yamamoto ,  Michio Ohba ,  Nobuya Matsutani

发明人： Kenichi Yamamoto ,  Michio Ohba ,  Nobuya Matsutani

IPC分类号： H01F27/30 ,  H01F41/04

CPC分类号： H01F17/0013 ,  H01F41/041 ,  Y10T29/49073

摘要： An inductance component is disclosed. This inductance component includes base made of insulating material, coil section buried in base, and external electrode terminals electrically coupled to the ends of coil section. Stress buffering section is provided on the exposed interface between base and external electrode terminals, and this stress buffering section can ease the stress produced by the difference in thermal coefficients due to temperature changes. The foregoing structure thus allows improving the reliability of the inductance component with respect to a thermal shock.

摘要翻译： 公开了一种电感元件。 该电感元件包括由绝缘材料制成的基座，埋在基座中的线圈部分和与线圈部分的端部电耦合的外部电极端子。 应力缓冲部分设置在基极和外部电极端子之间的暴露接口上，并且该应力缓冲部分可以缓解因温度变化引起的热系数差异产生的应力。 因此，上述结构允许提高电感元件相对于热冲击的可靠性。

公开(公告)号：US07219416B2

公开(公告)日：2007-05-22

申请号：US10842813

申请日：2004-05-11

申请人： Osamu Inoue ,  Junichi Kato ,  Nobuya Matsutani ,  Hiroshi Fujii ,  Takeshi Takahashi

发明人： Osamu Inoue ,  Junichi Kato ,  Nobuya Matsutani ,  Hiroshi Fujii ,  Takeshi Takahashi

IPC分类号： H01F7/06

CPC分类号： H01F41/127 ,  H01F1/24 ,  H01F1/26 ,  H01F1/28 ,  H01F17/04 ,  H01F27/027 ,  H01F27/292 ,  H01F41/0246 ,  Y10S156/922 ,  Y10T29/49002 ,  Y10T29/4902 ,  Y10T29/49021 ,  Y10T29/49071 ,  Y10T29/49073 ,  Y10T29/49158 ,  Y10T29/49172 ,  Y10T29/49176 ,  Y10T29/4922 ,  Y10T29/49261 ,  Y10T29/49277 ,  Y10T156/1082 ,  Y10T156/11 ,  Y10T428/11 ,  Y10T428/32

摘要： 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.

摘要翻译： 本发明提供一种复合磁体，其含有金属磁性粉末和热固性树脂，其金属磁性粉末的填充率为65体积％〜90体积％，电阻率为至少10体积％ 。厘米。 当将该线圈嵌入该复合磁体时，可以得到具有高电感值且DC偏置特性优异的微型磁性元件。

公开(公告)号：US20050068150A1

公开(公告)日：2005-03-31

申请号：US10502162

申请日：2003-10-30

申请人： Nobuya Matsutani ,  Akihiko Ibata ,  Yoshihisa Takase ,  Takeshi Takahashi

发明人： Nobuya Matsutani ,  Akihiko Ibata ,  Yoshihisa Takase ,  Takeshi Takahashi

IPC分类号： H01F3/02 ,  H01F3/08 ,  H01F3/10 ,  H01F17/00 ,  H01F17/04 ,  H01F27/34 ,  H01F27/36 ,  H01F27/28

CPC分类号： H01F17/04 ,  H01F3/02 ,  H01F3/08 ,  H01F3/10 ,  H01F17/0013 ,  H01F17/043 ,  H01F27/34 ,  H01F27/365

摘要： An inductive component in which a large enough inductance is obtainable even when the size is made smaller and the profile is made lower and electronic devices using the inductive component are provided. The inductive component includes a coil, a through hole inside the coil, and a multilayer magnetic layer, and the multilayer magnetic layer is disposed on the top and the bottom surfaces of the coil and the inner wall of the through hole.

摘要翻译： 即使在使尺寸变小并且轮廓变低并且使用电感元件的电子装置被提供的情况下，也可获得足够大的电感的电感分量。 电感部件包括线圈，线圈内的通孔和多层磁性层，多层磁性层设置在线圈的顶面和底面以及通孔的内壁。

公开(公告)号：US06558565B1

公开(公告)日：2003-05-06

申请号：US09647708

申请日：2000-11-20

申请人： Nobuya Matsutani ,  Yuji Mido ,  Hiroshi Fujii

发明人： Nobuya Matsutani ,  Yuji Mido ,  Hiroshi Fujii

IPC分类号： H01F126

CPC分类号： H01F41/0246 ,  B22F2003/023 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0271 ,  H01F1/14758 ,  H01F1/26 ,  B22F9/082 ,  B22F1/0059 ,  B22F3/02 ,  B22F3/1017 ,  B22F2201/00

摘要： A composite magnetic body used for a choke coil, etc. is formed by compression molding of a mixture of magnetic alloy powder containing iron (Fe) and nickel (Ni) as the main component, an insulating material and a binder of an acrylic resin. In the composite magnetic body, high packing rate of the magnetic alloy powder and good insulation between the powder particles stand together, exhibiting a low core loss and a high magnetic permeability. The composite magnetic body can be formed in various core pieces of complex shapes.

摘要翻译： 用于扼流线圈等的复合磁体通过以铁（Fe）和镍（Ni）为主要成分的磁性合金粉末的混合物，绝缘材料和丙烯酸树脂的粘合剂的压缩成型而形成。 在复合磁体中，磁性合金粉末的高填充率和粉末颗粒之间的绝缘性良好，呈现出低的磁心损耗和高的磁导率。 复合磁体可以形成为各种复杂形状的芯片。

公开(公告)号：US5518642A

公开(公告)日：1996-05-21

申请号：US314546

申请日：1994-09-28

申请人： Osamu Inoue ,  Nobuya Matsutani ,  Koichi Kugimiya ,  Osamu Ishii ,  Yasuyuki Aono

发明人： Osamu Inoue ,  Nobuya Matsutani ,  Koichi Kugimiya ,  Osamu Ishii ,  Yasuyuki Aono

IPC分类号： C04B35/26 ,  C04B35/38

CPC分类号： C04B35/2658

摘要： An oxide magnetic material provided by the present invention contains, as main components, 55 to 59 mol % of Fe.sub.2 O.sub.3 ; 35 to 42 mol % of MnO; and 6 mol % or less of ZnO, and further contains, as sub-components, 0.05 to 0.3 wt % of CaO; and 0.005 to 0.05 wt % of SiO.sub.2. The other oxide magnetic material provided by the present invention contains, as main components, 61 to 67 mol % of Fe.sub.2 O.sub.3 ; 3 to 36 mol % of MnO; and 30 mol % or less of ZnO, and further contains, as sub-components, 0.05 to 0.5 wt % of CaO; and 0.005 to 0.2 wt % of SiO.sub.2. Such materials can further contain one or more kinds of oxides selected from the group consisting of ZrO.sub.2, HfO.sub.2, Ta.sub.2 O.sub.5, Cr.sub.2 O.sub.3, MoO.sub.3, WO.sub.3, Al.sub.2 O.sub.3, Ga.sub.2 O.sub.3, In.sub.2 O.sub.3, GeO.sub.2, SnO.sub.2, Sb.sub.2 O.sub.3 and Bi.sub.2 O.sub.3. Such magnetic materials of the present invention have the advantages of having an extremely low magnetic loss even when used in the high frequency band and having a minimum magnetic loss at a temperature sufficiently higher than room temperature. Moreover, a switching power supply having a switching frequency of 300 kHz to 5 MHz is provided by using such magnetic materials as a magnetic core.

摘要翻译： 本发明提供的氧化物磁性材料含有55〜59摩尔％的Fe 2 O 3作为主要成分; 35〜42mol％的MnO; 和6mol％以下的ZnO，作为副成分，进一步含有0.05〜0.3重量％的CaO; 和0.005〜0.05重量％的SiO 2。 本发明提供的其它氧化物磁性材料以Fe 2 O 3为主要成分为61〜67摩尔％。 3〜36摩尔％的MnO; 和30摩尔％以下的ZnO，作为副成分，进一步含有0.05〜0.5重量％的CaO; 和0.005〜0.2重量％的SiO 2。 这些材料可以进一步含有选自ZrO 2，HfO 2，Ta 2 O 5，Cr 2 O 3，MoO 3，WO 3，Al 2 O 3，Ga 2 O 3，In 2 O 3，GeO 2，SnO 2，Sb 2 O 3和Bi 2 O 3中的一种以上的氧化物。 本发明的这种磁性材料具有即使在高频带下使用也具有非常低的磁损耗并且在足够高于室温的温度下具有最小的磁损耗的优点。 此外，通过使用这种磁性材料作为磁芯，提供具有300kHz至5MHz的开关频率的开关电源。