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公开(公告)号：US4695512A
公开(公告)日：1987-09-22
申请号：US800056
申请日：1985-11-20
申请人： Takashi Hatanai , Keishi Nakashima
发明人： Takashi Hatanai , Keishi Nakashima
CPC分类号： G11B5/1278 , Y10S428/90 , Y10T428/1171 , Y10T428/257 , Y10T428/30 , Y10T428/31663 , Y10T428/31721 , Y10T428/31725
摘要： A magnetic head for perpendicular magnetic recording includes a pair of substrates consituted by a non-magnetic material and having their opposing surfaces respectively formed with heat-resistant polymer films. A thin magnetic film is retained between these substrates. Further, a non-magnetic intermediate film is interposed between the thin magnetic film and each of the polymer films. The intermediate film has a coefficient of thermal expansion which is close to that of the thin magnetic film. Accordingly, no internal stress is generated in the thin magnetic film which would otherwise be caused by thermal expansion and shrinkage in manufacture. Thus, it is possible for the magnetic head to possess sufficiently high wear resistance and excellent magnetic properties.
摘要翻译： 用于垂直磁记录的磁头包括由非磁性材料构成并且其相对表面分别形成有耐热聚合物膜的一对基底。 这些基板之间保留有薄的磁性膜。 此外，非磁性中间膜介于薄磁性膜和每个聚合物膜之间。 中间膜的热膨胀系数接近薄膜的热膨胀系数。 因此，在制造时不会由热膨胀和收缩引起的薄磁膜中不产生内部应力。 因此，磁头具有足够高的耐磨性和优异的磁特性。
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12.发明授权公开(公告)号：US06171410B2
公开(公告)日：2001-01-09
申请号：US09026853
申请日：1998-02-20
IPC分类号： H01F104
CPC分类号： B82Y25/00 , H01F1/0579
摘要： A hard magnetic alloy in accordance with the present invention is composed of at least element T selected from the group consisting of Fe, Co and Ni, at least one rare earth element R, and boron (B). The hard magnetic alloy has an absolute value of the temperature coefficient of magnetization of 0.15%/° C. or less and a coercive force of 1 kOe, when being used in a shape causing a permeance factor of 2 or more. A hard magnetic alloy compact in accordance with the present invention has a texture, in which at least a part or all of the texture comprises an amorphous phase or fine crystalline phase having an average crystal grain size of 100 nm or less, is subjected to crystallization or grain growth under stress, such that a mixed phase composed of a soft magnetic or semi-hard magnetic phase and a hard magnetic phase is formed in the texture, and anisotropy is imparted to the crystal axis of the hard magnetic phase.
摘要翻译： 根据本发明的硬磁合金由至少选自Fe，Co和Ni，至少一种稀土元素R和硼（B）的元素T组成。 当使用导磁系数为2以上的形状时，硬磁合金的磁化温度的绝对值为0.15％/℃以下，矫顽力为1kOe。 根据本发明的硬磁合金压块具有其中至少部分或全部组织包含平均晶粒尺寸为100nm以下的非晶相或细结晶相的织构，进行结晶化 或在应力下的晶粒生长，使得在织构中形成由软磁性或半硬磁性相和硬磁性相组成的混合相，并且赋予硬磁相的晶轴各向异性。
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公开(公告)号：US06036825A
公开(公告)日：2000-03-14
申请号：US264839
申请日：1999-03-08
CPC分类号： H01F41/183
摘要： In a magnetic film forming method, a plurality of chips formed of Fe.sub.3 O.sub.4 and a plurality of chips formed of HfO.sub.2 are disposed on a target formed of Fe. The composition ratio of a Fe--Hf--O film can be set within a proper range by adjusting the numbers of the up said two kind of chips.
摘要翻译： 在磁性膜形成方法中，由Fe 3 O 4形成的多个芯片和由HfO 2形成的多个芯片设置在由Fe形成的靶上。 通过调整上述两种芯片的数量，可以将Fe-Hf-O膜的组成比设定在适当的范围内。
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公开(公告)号：US6034450A
公开(公告)日：2000-03-07
申请号：US111991
申请日：1998-07-08
CPC分类号： B82Y25/00 , H01F1/0571 , H01F1/0579 , H02K1/02 , H02K37/18
摘要： In a stepping motor having a stator provided with an electromagnet and a rotor composed of a hard magnetic alloy, the hard magnetic alloy comprises at least one element T of Fe and Co, at least one element R of rare earth elements and B, has a remanence ratio of at least 0.7, remanent magnetization (Ir) of at least 120 emu/g and coercive force (iHc) of at least 1 kOe and includes a fine crystalline phase having an average crystal grain size of 100 nm or less as a main phase. The hard magnetic alloy is solidified and compacted by making use of a softening phenomenon which arises when the amorphous phase contained in the structure of the hard magnetic alloy is crystallized. A method of manufacturing the hard magnetic alloy used to the stepping motor is also disclosed.
摘要翻译： 在具有设置有电磁体的定子和由硬磁合金构成的转子的步进电机中，硬磁合金包括至少一种Fe和Co的元素T，稀土元素和B的至少一个元素R具有 至少为0.7的剩磁比（Ir）至少为120emu / g，矫顽磁力（iHc）为至少1kOe，并且包括平均晶粒尺寸为100nm以下的细晶相为主 相。 通过利用在硬质合金的结构中包含的非晶相结晶时产生的软化现象，硬磁性合金被固化和压实。 还公开了用于步进电动机的硬磁合金的制造方法。
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公开(公告)号：US4768120A
公开(公告)日：1988-08-30
申请号：US81307
申请日：1987-08-03
申请人： Takashi Hatanai
发明人： Takashi Hatanai
CPC分类号： G11B5/2655 , G11B5/265
摘要： A complex magnetic head includes a center core made from a non-magnetic material, interposing a magnetic film between the center core and a recording and reproducing core at one side of the center core and another magnetic film between the center core and an erasing core at the other side of the center core, so as to alleviate a cross-feed phenomenum between the recording and reproducing core and the erasing core through the center core.
摘要翻译： 一种复杂的磁头包括由非磁性材料制成的中心芯，在中心芯之间插入磁膜，在中心芯的一侧插入记录和再现磁芯，在中心芯和擦除芯之间插入另一磁膜 中心芯的另一侧，以便减轻记录和再现芯与穿过中心芯的擦除芯之间的交叉馈送现象。
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16.发明授权Hard magnetic alloy, hard magnetic alloy compact and method for producing the same 失效硬磁合金，硬磁合金紧凑型及其制造方法公开(公告)号：US06692582B1
公开(公告)日：2004-02-17
申请号：US09697632
申请日：2000-10-26
IPC分类号： H01F100
CPC分类号： B82Y25/00 , H01F1/0579
摘要： A hard magnetic alloy in accordance with the present invention is composed of at least element T selected from the group consisting of Fe, Co and Ni, at least one rare earth element R, and boron (B). The hard magnetic alloy has an absolute value of the temperature coefficient of magnetization of 0.15%/° C. or less and a coercive force of 1 kOe, when being used in a shape causing a permeance factor of 2 or more. A hard magnetic alloy compact in accordance with the present invention has a texture, in which at least a part or all of the texture comprises an amorphous phase or fine crystalline phase having an average crystal grain size of 100 nm or less, is subjected to crystallization or grain growth under stress, such that a mixed phase composed of a soft magnetic or semi-hard magnetic phase and a hard magnetic phase is formed in the texture, and anisotropy is imparted to the crystal axis of the hard magnetic phase.
摘要翻译： 根据本发明的硬磁合金由至少选自Fe，Co和Ni，至少一种稀土元素R和硼（B）的元素T组成。 当使用导磁系数为2以上的形状时，硬磁合金的磁化温度的绝对值为0.15％/℃以下，矫顽力为1kOe。 根据本发明的硬磁合金压块具有其中至少部分或全部组织包含平均晶粒尺寸为100nm以下的非晶相或细结晶相的织构，进行结晶化 或在应力下的晶粒生长，使得在织构中形成由软磁性或半硬磁性相和硬磁性相组成的混合相，并且赋予硬磁相的晶轴各向异性。
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公开(公告)号：US06351204B1
公开(公告)日：2002-02-26
申请号：US09565285
申请日：2000-05-02
申请人： Kiyohito Yamasawa , Yasuo Hayakawa , Takashi Hatanai , Akihiro Makino , Yutaka Naito , Naoya Hasegawa
发明人： Kiyohito Yamasawa , Yasuo Hayakawa , Takashi Hatanai , Akihiro Makino , Yutaka Naito , Naoya Hasegawa
IPC分类号： H01F500
CPC分类号： H01F10/187 , H01F17/0006 , H01F2017/0066
摘要： A thin magnetic element comprising a coil pattern formed on at least one side of a substrate and a thin magnetic film formed on the coil pattern, wherein, assuming that the thickness and width of a coil conductor constituting the coil pattern are t and a, respectively, an aspect ratio t/a of the coil conductor satisfies the relationship 0.035≦t/a≦0.35, and the thin magnetic film has a resistivity of 400 &mgr;&OHgr;cm or more.
摘要翻译： 一种薄磁性元件，包括形成在衬底的至少一侧的线圈图案和形成在线圈图案上的薄磁膜，其中，假定构成线圈图案的线圈导体的厚度和宽度分别为t和a ，线圈导体的纵横比t / a满足关系0.035 <= t / a <= 0.35，薄磁膜的电阻率为400μΩEG·cm以上。
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公开(公告)号：US06175296B1
公开(公告)日：2001-01-16
申请号：US09353293
申请日：1999-07-12
IPC分类号： H01L4300
CPC分类号： G01D5/145
摘要： The potentiometer of the present invention includes at least a pair of giant magnetoresistive effect elements, in which the giant magnetoresistive effect elements to be paired are formed on a substrate in a state that the elements are connected mutually electrically with the orientations of magnetization axes of the pinned magnetic layers facing 180° opposite each other, and a magnetic coding member is rotatably provided to face the giant magnetoresistive effect elements on the substrate, the magnetic coding member is disposed in such a manner that the center of rotation of the magnetic coding member passes through an intermediate position of the giant magnetoresistive effect elements to be paired, and the magnetic coding member has at least two magnetic poles formed along the direction of rotation of itself.
摘要翻译： 本发明的电位计包括至少一对巨磁阻效应元件，其中要成对的巨磁电阻效应元件以这样的状态形成在基板上，即元件与电磁轴线的方向相互电连接 被固定的磁性层相对于彼此相对的180°，并且磁性编码构件可旋转地设置成面对基板上的巨磁阻效应元件，磁编码构件以这样的方式设置，使得磁编码构件的旋转中心通过 通过要成对的巨磁阻效应元件的中间位置，并且磁编码构件具有沿其自身旋转方向形成的至少两个磁极。
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公开(公告)号：US5467236A
公开(公告)日：1995-11-14
申请号：US274670
申请日：1994-07-13
申请人： Takashi Hatanai , Akira Takahashi
发明人： Takashi Hatanai , Akira Takahashi
CPC分类号： G11B5/4826
摘要： A spherical projection portion for pivotally supporting a magnetic head is protrusively formed in a tongue piece formed in a flexure, and a non-contact portion with the slider are formed on both sides of the projection portion. The backward portion with the projection portion and the non-contact portion as a boundary is formed into a bonding portion. A bonding agent between the bonding portion and the slider is prevented from flowing toward a magnetic conversion element by the projection portion and the non-contact portion. Since the bonding agent is not present in the vicinity of the magnetic conversion element, the magnetic conversion element is not deformed due to the expansion and contraction of the hardened bonding agent. Also, since the bonding area is formed into an appropriate dimension, the protuberance dimension of a crown of the slider is not varied.
摘要翻译： 用于枢转地支撑磁头的球形突出部分突出地形成在形成在弯曲部中的舌片中，并且与滑块的非接触部分形成在突出部分的两侧。 具有突出部分和非接触部分作为边界的向后部分形成为接合部分。 通过突出部和非接触部，防止接合部和滑块之间的接合剂朝向磁性转换元件流动。 由于粘合剂不存在于磁转换元件附近，所以磁化转换元件不会由于硬化的粘合剂的膨胀和收缩而变形。 此外，由于接合区域形成为合适的尺寸，所以滑块的凸起的突起尺寸不变。
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公开(公告)号：US07859258B2
公开(公告)日：2010-12-28
申请号：US12820764
申请日：2010-06-22
CPC分类号： G01R33/093 , B82Y25/00 , H01L43/08
摘要： Magnetoresistive effect elements are provided with an element unit having an elongated shape in which an element length L1 is formed to be longer than an element width W1. The element unit has a fixed magnetic layer and a free magnetic layer laminated via a non-magnetic layer on the fixed magnetic layer. A magnetism direction of the fixed magnetic layer faces an element width direction (Y direction) of a sensitivity axis direction. First soft magnetic bodies formed to have a width size W2 and a length size L2 are arranged in a non-contact manner on both lateral sides of the magnetoresistive effect element. The length size L2 is longer than the element length L1, and the first soft magnetic body has an extension part extending in an element length direction from both sides in the element length direction of the element unit.
摘要翻译： 磁阻效应元件设置有具有细长形状的元件单元，其中元件长度L1形成为长于元件宽度W1。 元件单元具有固定磁性层和通过固定磁性层上的非磁性层层叠的自由磁性层。 固定磁性层的磁方向与感光度轴方向的元件宽度方向（Y方向）相对。 形成为具有宽度尺寸W2和长度尺寸L2的第一软磁体以非接触方式布置在磁阻效应元件的两个侧面上。 长度尺寸L2比元件长度L1长，第一软磁体具有在元件单元的元件长度方向上的两侧沿元件长度方向延伸的延伸部。
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