公开(公告)号：US5856899A

公开(公告)日：1999-01-05

申请号：US955907

申请日：1997-10-23

申请人： Kinya Aoyagi ,  Tokuo Nakamura ,  Hiroshi Yamagami ,  Seiichi Abiko ,  Masahiro Iizuka ,  Satoshi Maki

发明人： Kinya Aoyagi ,  Tokuo Nakamura ,  Hiroshi Yamagami ,  Seiichi Abiko ,  Masahiro Iizuka ,  Satoshi Maki

IPC分类号： G11B5/10 ,  G11B5/105 ,  G11B5/133 ,  G11B5/193 ,  G11B5/23 ,  H01F1/34 ,  G11B5/235

CPC分类号： G11B5/193 ,  G11B5/1335 ,  G11B5/102 ,  G11B5/105 ,  G11B5/23 ,  G11B5/232

摘要： The magnetocrystalline anisotropic energy Kl is set to not more than 100 J/m.sup.3 and the absolute value of the magnetostriction in the direction, as the magnetic circuit direction, is reduced by appropriately selecting the ferrite material composition. Since the magnetocrystalline anisotropic energy Kl is small, the magnetoelastic energy largely affects the anisotropy of the crystallographic axis. The magnetoelastic energy is made negative and small in magnitude by adjusting the average coefficients of thermal expansion of the ferrite material and glass so as to apply a tensile stress around the magnetic gap of the magnetic head. The direction, i.e., magnetic circuit direction, is thereby allowed to coincide with a hard axis of magnetization. As a result, the permeability of the magnetic head is improved at high-frequency bands.

摘要翻译： 将磁晶各向异性能K1设定为不超过100J / m 3，并且通过适当选择铁素体材料组成，减小作为磁路方向的<100>方向的磁致伸缩的绝对值。 由于磁晶各向异性能K1小，所以磁弹性能很大程度上影响结晶轴的各向异性。 通过调整铁氧体材料和玻璃的平均热膨胀系数，使磁致伸缩能量呈负值且小的程度，从而在磁头的磁隙周围施加拉伸应力。 因此，允许<100>方向，即磁路方向与硬磁化轴一致。 结果，磁头的磁导率在高频带被改善。

公开(公告)号：US08685179B2

公开(公告)日：2014-04-01

申请号：US13330420

申请日：2011-12-19

申请人： Keiko Tsuchiya ,  Hisato Koshiba ,  Kazuya Kaneko ,  Seiichi Abiko ,  Takao Mizushima

发明人： Keiko Tsuchiya ,  Hisato Koshiba ,  Kazuya Kaneko ,  Seiichi Abiko ,  Takao Mizushima

IPC分类号： C22C45/02

CPC分类号： C22C45/02 ,  C21D6/00 ,  C21D2201/03 ,  C22C33/003 ,  C22C33/02 ,  C22C2200/02 ,  C22C2202/02 ,  H01F1/15308 ,  H01F27/255 ,  H01F41/0226 ,  H01F2017/048

摘要： An Fe-based amorphous alloy of the present invention has a composition formula represented by Fe100-a-b-c-x-y-z-tNiaSnbCrcPxCyBzSit, and in the formula, 0 at %≦a≦10 at %, 0 at %≦b≦3 at %, 0 at %≦c≦6 at %, 6.8 at %≦x≦10.8 at %, 2.2 at %≦y≦9.8 at %, 0 at %≦z≦4.2 at %, and 0 at %≦t≦3.9 at % hold. Accordingly, an Fe-based amorphous alloy used for a powder core and/or a coil encapsulated powder core having a low glass transition temperature (Tg), a high conversion vitrification temperature (Tg/Tm), and excellent magnetization and corrosion resistance can be manufactured.

摘要翻译： 本发明的Fe基非晶合金具有由Fe100-abcxyz-tNiaSnbCrcPxCyBzSit表示的组成式，在该式中，0at％＆nlE; a＆nlE; 10at％，0at％＆amp; nlE; b＆nlE; 3at％ at％＆nlE; c＆nlE; 6 at％，6.8 at％＆nlE; x＆nlE; 10.8 at％，2.2 at％＆nlE; y＆nlE; 9.8 at％，0 at％＆nlE; z＆nlE; 4.2 at％，0 at％＆nlE; t＆nlE ; 3.9 at％hold。 因此，用于具有低玻璃化转变温度（Tg），高转化玻璃化温度（Tg / Tm）和优异的耐磁化性和耐腐蚀性的粉末芯和/或线圈封装粉末芯的Fe基非晶合金可以是 制造。

公开(公告)号：US20090017279A1

公开(公告)日：2009-01-15

申请号：US12143030

申请日：2008-06-20

申请人： Takao Mizushima ,  Seiichi Abiko ,  Kyoichi Kawase ,  Toshio Takahashi ,  Satoshi Maruyama

发明人： Takao Mizushima ,  Seiichi Abiko ,  Kyoichi Kawase ,  Toshio Takahashi ,  Satoshi Maruyama

IPC分类号： H05K9/00 ,  H01F1/00 ,  B32B5/16

CPC分类号： H05K9/0083 ,  H01F1/15308 ,  H01F1/26 ,  H01F41/16 ,  Y10T428/268 ,  Y10T428/31 ,  Y10T428/32

摘要： An electromagnetic wave suppressing sheet according to the invention is a sheet including a magnetic powder and an insulating material. A real part of a permittivity in an in-plane direction of the sheet is about 200 or more, and an imaginary part thereof is about 25 or more. Accordingly, it is possible to obtain an electromagnetic wave absorbing sheet which exhibits an excellent electric wave absorption characteristic in which an absorption amount of electromagnetic waves is large in an in-plane direction of the sheet.

摘要翻译： 根据本发明的电磁波抑制片是包括磁性粉末和绝缘材料的片材。 在片材的面内方向上的介电常数的实部为约200以上，其虚部为约25以上。 因此，可以获得在片材的面内方向上电磁波的吸收量大的电波吸收特性的电磁波吸收片。

公开(公告)号：US20120092111A1

公开(公告)日：2012-04-19

申请号：US13330420

申请日：2011-12-19

申请人： Keiko TSUCHIYA ,  Hisato KOSHIBA ,  Kazuya KANEKO ,  Seiichi ABIKO ,  Takao MIZUSHIMA

发明人： Keiko TSUCHIYA ,  Hisato KOSHIBA ,  Kazuya KANEKO ,  Seiichi ABIKO ,  Takao MIZUSHIMA

IPC分类号： H01F1/01 ,  H01F27/02 ,  C22C45/02 ,  H01F27/24

CPC分类号： C22C45/02 ,  C21D6/00 ,  C21D2201/03 ,  C22C33/003 ,  C22C33/02 ,  C22C2200/02 ,  C22C2202/02 ,  H01F1/15308 ,  H01F27/255 ,  H01F41/0226 ,  H01F2017/048

摘要： An Fe-based amorphous alloy of the present invention has a composition formula represented by Fe100-a-b-c-x-y-z-tNiaSnbCrcPxCyBzSit, and in the formula, 0 at %≦a≦10 at %, 0 at %≦b≦3 at %, 0 at %≦c≦6 at %, 6.8 at %≦x≦10.8 at %, 2.2 at %≦y≦9.8 at %, 0 at %≦z≦4.2 at %, and 0 at %≦t≦3.9 at % hold. Accordingly, an Fe-based amorphous alloy used for a powder core and/or a coil encapsulated powder core having a low glass transition temperature (Tg), a high conversion vitrification temperature (Tg/Tm), and excellent magnetization and corrosion resistance can be manufactured.

摘要翻译： 本发明的Fe基非晶合金具有由Fe100-abcxyz-tNiaSnbCrcPxCyBzSit表示的组成式，在该式中，0at％＆nlE; a＆nlE; 10at％，0at％＆amp; nlE; b＆nlE; 3at％ at％＆nlE; c＆nlE; 6 at％，6.8 at％＆nlE; x＆nlE; 10.8 at％，2.2 at％＆nlE; y＆nlE; 9.8 at％，0 at％＆nlE; z＆nlE; 4.2 at％，0 at％＆nlE; t＆nlE ; 3.9 at％hold。 因此，用于具有低玻璃化转变温度（Tg），高转化玻璃化温度（Tg / Tm）和优异的耐磁化性和耐腐蚀性的粉末芯和/或线圈封装粉末芯的Fe基非晶合金可以是 制造。