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公开(公告)号：US06326092B1
公开(公告)日：2001-12-04
申请号：US09593120
申请日：2000-06-13
申请人： Kazuaki Ikarashi , Naoya Hasegawa , Akihiro Makino
发明人： Kazuaki Ikarashi , Naoya Hasegawa , Akihiro Makino
IPC分类号： G11B566
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3903 , G11B2005/3996 , H01F10/3268 , H01L43/12 , Y10S428/90 , Y10T428/1107 , Y10T428/1121 , Y10T428/12986
摘要： A magnetoresistance device comprising at least two ferromagnetic layers separated by a non-magnetic layer, the coercive force of one of the ferromagnetic layers being enhanced by a coercive force enhancement layer of an antiferromagnetic material disposed adjacent to the one of the ferromagnetic layer thereby pinning magnetization inversion in the one of the ferromagnetic layer, the other ferromagnetic layer serving as a free ferromagnetic layer in which magnetization inversion is allowed, wherein the spin orientation in the coercive force enhancement layer is aligned in a multilayer fashion into a direction substantially parallel to the plane of the coercive force enhancement layer. A method of producing such a device is also disclosed.
摘要翻译： 磁阻器件包括由非磁性层分开的至少两个铁磁层，其中一个铁磁层的矫顽力由靠近该铁磁层之一设置的反铁磁材料的矫顽力增强层增强，由此固定磁化强度 在铁磁层中的一个反转，另一个铁磁层用作其中允许磁化反转的自由铁磁层，其中矫顽力增强层中的自旋取向以多层方式对准到基本上平行于该平面的方向 的矫顽力增强层。 还公开了一种制造这种装置的方法。
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公开(公告)号：US06210810B1
公开(公告)日：2001-04-03
申请号：US08928765
申请日：1997-09-12
申请人： Kazuaki Ikarashi , Naoya Hasegawa , Akihiro Makino
发明人： Kazuaki Ikarashi , Naoya Hasegawa , Akihiro Makino
IPC分类号： B32B1518
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3903 , G11B2005/3996 , H01F10/3268 , H01L43/12 , Y10S428/90 , Y10T428/1107 , Y10T428/1121 , Y10T428/12986
摘要： A magnetoresistance device comprising at least two ferromagnetic layers separated by a non-magnetic layer, the coercive force of one of the ferromagnetic layers being enhanced by a coercive force enhancement layer of an antiferromagnetic material disposed adjacent to the one of the ferromagnetic layer thereby pinning magnetization inversion in the one of the ferromagnetic layer, the other ferromagnetic layer serving as a free ferromagnetic layer in which magnetization inversion is allowed, wherein the spin orientation in the coercive force enhancement layer is aligned in a multilayer fashion into a direction substantially parallel to the plane of the coercive force enhancement layer. A method of producing such a device is also disclosed.
摘要翻译： 磁阻器件包括由非磁性层分开的至少两个铁磁层，其中一个铁磁层的矫顽力由靠近该铁磁层之一设置的反铁磁材料的矫顽力增强层增强，由此固定磁化强度 在铁磁层中的一个反转，另一个铁磁层用作其中允许磁化反转的自由铁磁层，其中矫顽力增强层中的自旋取向以多层方式对准到基本上平行于该平面的方向 的矫顽力增强层。 还公开了一种制造这种装置的方法。
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63.发明授权Soft magnetic film, and thin film magnetic head, planer magnetic element, and filter using the soft magnetic film 有权软磁膜，薄膜磁头，平面磁元件，以及使用软磁膜的滤波器公开(公告)号：US06171716B2
公开(公告)日：2001-01-09
申请号：US09313924
申请日：1999-05-18
IPC分类号： B32B900
CPC分类号： H01F10/131 , G11B5/3109 , Y10S428/90 , Y10T428/1136
摘要： A soft magnetic film includes Fe as a major constituent; at least one element M selected from the group consisting of Zr, Hr, V, Nb, Ta, W, Mo, and rare earth elements (excluding Sm); at least one element L selected from the group consisting of Ti, Sn, Sm, and Si: and at least one element R selected from the group consisting of O, C, and N. The film has a structure including a mixture of an amorphous phase containing a large amount of the oxide of the element M and a fine crystalline phase containing a large amount of Fe, and the fine crystalline phase further contains the element L. Thin film magnetic heads, planar magnetic elements, and filters using the soft magnetic film are also disclosed.
摘要翻译： 软磁性膜包括Fe作为主要成分; 选自由Zr，Hr，V，Nb，Ta，W，Mo和稀土元素（Sm除外）组成的组中的至少一种元素M; 选自由Ti，Sn，Sm和Si组成的组中的至少一种元素L.以及选自O，C和N的至少一种元素R.该膜具有包括非晶态的混合物的结构 相含有大量的元素M的氧化物和含有大量Fe的细晶相，微细晶相还含有元素L.薄膜磁头，平面磁性元件和使用软磁性的滤波器 电影也被披露。
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64.发明授权
公开(公告)号：US6150046A
公开(公告)日：2000-11-21
申请号：US16838
申请日：1998-01-30
申请人： Toshinori Watanabe , Akira Takahashi , Fumihito Koike , Nobuhiro Hayashi , Yoshihiro Kanada , Kiyoshi Sato , Eiji Umetsu , Takashi Hatanai , Akihiro Makino
发明人： Toshinori Watanabe , Akira Takahashi , Fumihito Koike , Nobuhiro Hayashi , Yoshihiro Kanada , Kiyoshi Sato , Eiji Umetsu , Takashi Hatanai , Akihiro Makino
CPC分类号： G11B5/3967 , G11B5/3106 , G11B5/3109 , G11B5/3113 , G11B5/3163 , H01F10/131 , G11B5/112 , G11B5/3116 , G11B5/3903 , H01F10/265 , Y10S428/90 , Y10T428/1143 , Y10T428/1171 , Y10T428/12465 , Y10T428/12472 , Y10T428/12576 , Y10T428/1259 , Y10T428/1266 , Y10T428/12674 , Y10T428/12806 , Y10T428/12854 , Y10T428/12861 , Y10T428/12875 , Y10T428/12931
摘要： A thin film magnetic head includes an upper core layer and a lower core layer which are made of an Fe--M--O alloy, an Fe--M--T--O alloy or an NI--Fe--X alloy so that the upper core layer has a high saturation magnetic flux density, low coercive force and high resistivity, and the lower core layer has a lower saturation magnetic flux density than the upper core layer, low coercive force, high resistivity, and a low magnetostriction constant. Also the lower core layer is formed so that the thickness gradually decreases toward both side ends, and a gap layer can be formed on the lower core layer to have a uniform thickness. Since the lower core layer is formed by sputtering, a material having excellent soft magnetic material can be used, thereby enabling recording at high frequency.
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公开(公告)号：US6083325A
公开(公告)日：2000-07-04
申请号：US893768
申请日：1997-07-11
申请人： Teruo Bitoh , Yasuo Hayakawa , Takashi Hatanai , Akihiro Makino , Akihisa Inoue , Tsuyoshi Masumoto
发明人： Teruo Bitoh , Yasuo Hayakawa , Takashi Hatanai , Akihiro Makino , Akihisa Inoue , Tsuyoshi Masumoto
CPC分类号： H01F1/15308 , H01F1/15341
摘要： A method for making a Fe-based soft magnetic alloy where an alloy melt is injected onto a moving cooling unit to form an amorphous alloy ribbon. The alloy melt contains Fe as a main component, B and at least one metallic element M selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Mo and W, the composition of the alloy melt being selected such that the resulting amorphous alloy ribbon is characterized by a first crystallization temperature at which fine grain bcc Fe crystallites precipitate, and a second crystallization temperature at which a compound phase containing Fe--B and/or Fe--M precipitates. The amorphous alloy ribbon is then annealed at a temperature which is higher that the first crystallization temperature and less than the second crystallization temperature for an annealing time in the range of 0 minutes to 20 minutes.
摘要翻译： 一种制造Fe基软磁合金的方法，其中将合金熔体注入到移动的冷却单元上以形成非晶合金带。 合金熔体含有Fe作为主要成分，B和选自Ti，Zr，Hf，V，Nb，Ta，Mo和W中的至少一种金属元素M，选择合金熔体的组成使得 所得到的非晶合金带的特征在于细晶粒bcc Fe微晶析出的第一结晶温度和含有Fe-B和/或Fe-M的化合物相析出的第二结晶温度。 然后在0分钟至20分钟的范围内，在比第一结晶温度高且低于第二结晶温度的退火时间的温度下退火非晶态合金带。
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公开(公告)号：US6074707A
公开(公告)日：2000-06-13
申请号：US18919
申请日：1998-02-05
CPC分类号： B82Y25/00 , H01F10/3268 , H01F41/32 , H01L43/12
摘要： The present invention provides a method of producing a magnetoresistive element in which a laminate including a free ferromagnetic layer in which at least magnetization is freely rotated according to an external magnetic field, a non-magnetic layer, and a pinned ferromagnetic layer in which reversal of magnetization is pinned is formed, and is heat-treated for setting different directions of the easy axis of magnetization of the free ferromagnetic layer and the pinned ferromagnetic layer under different conditions. In the heat treatment, first annealing is performed at the predetermined temperature in a magnetic field applied in a first direction, and second annealing is performed in a magnetic field applied in a second direction substantially perpendicular to the first direction so that the easy axis of magnetization of the free ferromagnetic layer is substantially perpendicular to that of the pinned ferromagnetic layer.
摘要翻译： 本发明提供了一种制造磁阻元件的方法，其中包括自由铁磁层的层压体，其中至少磁化根据外部磁场自由旋转，非磁性层和固定的铁磁层，其中反转 形成磁化，并对不同条件下的自由铁磁层和被固定铁磁层的易磁化轴的不同方向进行热处理。 在热处理中，在施加于第一方向的磁场中，在规定温度下进行第一退火，在与第一方向大致正交的第二方向施加的磁场中进行第二退火，使得易磁化轴 的自由铁磁层基本上垂直于被钉扎的铁磁层。
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公开(公告)号：US06060977A
公开(公告)日：2000-05-09
申请号：US225632
申请日：1999-01-05
CPC分类号： H01F17/0006 , H01F17/04
摘要： The present invention provides an inductor having a small core loss at a high frequency. The inductor includes a transformer that has a core formed of a base core and a cover core, and a conductive plate sandwiched between the base core and the cover core, as well as a conductive plate sandwiched between the base core and the cover core. The base core is composed of a Mn--Zn ferrite with a mean grain size of 5 .mu.m or less. The transformer has a small core loss at a high frequency band without a decrease in power transmission efficiency.
摘要翻译： 本发明提供一种在高频率下具有小铁损的电感器。 电感器包括具有由基底芯和覆盖芯构成的芯体的变压器，以及夹在基底芯和盖芯之间的导电板以及夹在基底芯和盖芯之间的导电板。 基核由平均粒径为5μm以下的Mn-Zn铁氧体构成。 变压器在高频带处具有小的磁芯损耗，而不会降低功率传输效率。
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公开(公告)号：US6047763A
公开(公告)日：2000-04-11
申请号：US144387
申请日：1998-08-31
CPC分类号： B22D11/0697 , B22D11/0611
摘要： A metal ribbon manufacturing apparatus which comprises a cooling roll having a cooling surface for cooling a melt, a melt nozzle confronting the cooling surface with a prescribed gap maintained between it and the cooling roll, gas flow supply means for supplying an inert gas to the periphery of the melt nozzle, roll outside periphery atmosphere shutoff means for covering at least a portion of the outside periphery of the cooling roll and preventing the atmosphere from being rolled in by the rotation of the cooling roll, and an atmosphere staying portion disposed on the front side in the rotating direction of the cooling roll of the roll outside periphery atmosphere shutoff means.
摘要翻译： 一种金属带制造装置，包括具有用于冷却熔体的冷却表面的冷却辊，保持在其与冷却辊之间的规定间隙面对冷却表面的熔体喷嘴，用于向周边供给惰性气体的气体流供给装置 熔融喷嘴的外周侧气氛切断装置，用于覆盖冷却辊的外周的至少一部分，防止由于冷却辊的旋转而使气氛卷入，以及设置在前方的气氛滞留部 在辊外周边气氛关闭装置的冷却辊的旋转方向侧。
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公开(公告)号：US5910344A
公开(公告)日：1999-06-08
申请号：US175593
申请日：1998-10-20
申请人： Naoya Hasegawa , Masamichi Saito , Akihiro Makino
发明人： Naoya Hasegawa , Masamichi Saito , Akihiro Makino
IPC分类号： G01R33/09 , G11B5/012 , G11B5/31 , G11B5/39 , H01F10/32 , H01L43/08 , H01L43/10 , H01L43/12 , B29C35/08
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3903 , H01F10/3268 , H01L43/10 , H01L43/12 , G11B2005/3996 , G11B5/012 , G11B5/3163 , G11B5/3929 , G11B5/3967
摘要： The present invention provides a magnetoresistive sensor having at least two ferromagnetic layers provided with a non-magnetic layer therebetween; a coercive force increasing layer consisting of an antiferromagnetic material and provided adjacent to one of the ferromagnetic layers, for increasing the coercive force thereof to pin magnetization reversal, the other ferromagnetic layer having free magnetization reversal; and an antiferromagnetic layer provided to adjacent to the other ferromagnetic layer having free magnetization reversal, for applying a longitudinal bias to the other ferromagnetic layer to induce magnetic anisotropy therein due to an unidirectional exchange bias magnetic field to stabilize a magnetic domain.
摘要翻译： 本发明提供一种磁阻传感器，其具有至少两个在其间设置有非磁性层的铁磁层; 由反铁磁性材料构成的矫顽力增加层，并且与铁磁层之一相邻设置，用于增加其矫顽力以引起磁化反转，另一个铁磁层具有自由磁化反转; 以及反铁磁层，其设置成与具有自由磁化反转的另一个铁磁层相邻，用于由于单向交换偏置磁场而使另一个铁磁层施加纵向偏置以引起其各向异性以稳定磁畴。
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70.发明授权
公开(公告)号：US5755986A
公开(公告)日：1998-05-26
申请号：US717538
申请日：1996-09-19
CPC分类号： H01F1/37 , C22C1/0441
摘要： A high-frequency composite material, having soft magnetic and dielectric characteristics, comprising a soft magnetic alloy powder represented by the general composition A.sub.a M.sub.b D.sub.c and a synthetic resin, wherein A represents at least one element or mixture thereof selected from the group consisting of Fe, Co and Ni; M represents at least one element or mixture thereof selected from the group consisting of Hf, Zr, W, Ti, V, Nb, Mo, Cr, Mg, Mn, Al, Si, Ca, Sr, Ba, Cu, Ga, Ge, As, Se, Zn, Cd, In, Sn, Sb, Te, Pb, Bi and rare earth elements; D represents at least one element or mixture thereof selected from the group consisting of O, C, N and B; and the suffixes a, b, and c in the general formula A.sub.a M.sub.b D.sub.c satisfy the following equations represented by atomic percent: 40.ltoreq.a
摘要翻译： 一种具有软磁性和介电特性的高频复合材料，其特征在于，包括一般组成AaMbDc和合成树脂所代表的软磁性合金粉末，其中A代表选自Fe，Co中的至少一种元素或者它们的混合物 和镍; M表示选自Hf，Zr，W，Ti，V，Nb，Mo，Cr，Mg，Mn，Al，Si，Ca，Sr，Ba，Cu，Ga，Ge中的至少一种元素或者它们的混合物 ，As，Se，Zn，Cd，In，Sn，Sb，Te，Pb，Bi和稀土元素; D表示选自O，C，N和B的至少一种元素或其混合物; 并且通式AaMbDc中的后缀a，b和c满足由原子百分比表示的以下等式：40 50。 \！
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