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    Magnetic refrigerating device and magnetic refrigerating system
    1.
    发明授权
    Magnetic refrigerating device and magnetic refrigerating system 有权
    磁性制冷装置及磁性制冷系统

    公开(公告)号：US08935927B2

    公开(公告)日：2015-01-20

    申请号：US13079451

    申请日：2011-04-04

    申请人： Tadahiko Kobayashi ,  Akiko Saito ,  Shiori Kaji

    发明人： Tadahiko Kobayashi ,  Akiko Saito ,  Shiori Kaji

    IPC分类号： F25B21/00

    CPC分类号： F25B21/00 ,  F25B2321/002 ,  F25B2321/0022 ,  Y02B30/66

    摘要： The magnetic refrigerating device according to one embodiment includes a fixed container filled with a refrigerant, the fixed container including a magnetic material container that is filled with a magnetic material and that can move in the fixed container and an elastic member provided at the end of the magnetic material container. The magnetic refrigerating device also includes a magnetic-field applying/removing mechanism that is provided at the outside of the fixed container, and that can apply and remove a magnetic field to and from the magnetic material and can generate a magnetic torque to the magnetic material container in moving direction of the magnetic material container.

    摘要翻译： 根据一个实施例的磁性制冷装置包括填充有制冷剂的固定容器，该固定容器包括填充有磁性材料并且可以在固定容器中移动的磁性材料容器和设置在固定容器的末端的弹性构件 磁性材料容器。 磁性制冷装置还包括设置在固定容器的外部的磁场施加/移除机构，并且可以向磁性材料施加磁场和从磁性材料除去磁场，并且可以向磁性材料产生磁力矩 容器在磁性材料容器的移动方向上。

    HEAT EXCHANGER UNIT AND THERMAL CYCLING UNIT
    4.
    发明申请
    HEAT EXCHANGER UNIT AND THERMAL CYCLING UNIT 有权
    热交换器单元和热循环单元

    公开(公告)号：US20120073307A1

    公开(公告)日：2012-03-29

    申请号：US13079218

    申请日：2011-04-04

    申请人： Shiori Kaji ,  Tadahiko Kobayashi ,  Akiko Saito

    发明人： Shiori Kaji ,  Tadahiko Kobayashi ,  Akiko Saito

    IPC分类号： F25B21/00

    CPC分类号： F25B21/00 ,  F25B2321/0022 ,  Y02B30/66

    摘要： A heat exchanger unit according to an exemplary embodiment includes: a plurality of heat exchangers that includes magnetic particles therein; and a connection section that is provided between the heat exchangers to connect the heat exchangers, the connection section including a solid-core member, a porous body or a combined substance of the solid-core member and the porous body. In the heat exchanger unit, the connection section invades partially into an inside of the heat exchanger connected thereto.

    摘要翻译： 根据示例性实施例的热交换器单元包括：多个热交换器，其中包括磁性颗粒; 以及设置在热交换器之间以连接热交换器的连接部分，连接部分包括实芯部件，多孔体或实芯部件的组合物质和多孔体。 在热交换器单元中，连接部分部分地侵入与其连接的热交换器的内部。

    MAGNETIC MATERIAL FOR MAGNETIC REFRIGERATION
    5.
    发明申请
    MAGNETIC MATERIAL FOR MAGNETIC REFRIGERATION 审中-公开
    磁性制冷用磁性材料

    公开(公告)号：US20090019860A1

    公开(公告)日：2009-01-22

    申请号：US12234790

    申请日：2008-09-22

    申请人： Shinya Sakurada ,  Akiko Saito ,  Tadahiko Kobayashi ,  Hideyuki Tsuji

    发明人： Shinya Sakurada ,  Akiko Saito ,  Tadahiko Kobayashi ,  Hideyuki Tsuji

    IPC分类号： F25B21/00

    CPC分类号： F25B21/00 ,  C22C38/005 ,  C22C45/02 ,  H01F1/015

    摘要： A magnetic material for magnetic refrigeration has a composition represented by (R11-yR2y)xFe100-x (R1 is at least one of element selected from Sm and Er, R2 is at least one of element selected from Ce, Pr, Nd, Tb and Dy, and x and y are numerical values satisfying 4≦x≦20 atomic % and 0.05≦y≦0.95), and includes a Th2Zn17 crystal phase, a Th2Ni17 crystal phase, or a TbCu7 crystal phase as a main phase.

    摘要翻译： 用于磁性制冷的磁性材料具有由（R11-yR2y）xFe100-x表示的组成（R1是选自Sm和Er中的至少一种元素，R2是选自Ce，Pr，Nd，Tb中的至少一种元素， Dy，x和y是满足4 <= x <= 20原子％和0.05 <= y <= 0.95的数值），并且包括Th2Zn17结晶相，Th2Ni17结晶相或TbCu7晶相作为主相 。

    Magnetic material
    7.
    发明授权
    Magnetic material 有权
    磁性材料

    公开(公告)号：US06676772B2

    公开(公告)日：2004-01-13

    申请号：US10098568

    申请日：2002-03-18

    申请人： Akiko Saito ,  Tadahiko Kobayashi ,  Takao Sawa ,  Masashi Sahashi

    发明人： Akiko Saito ,  Tadahiko Kobayashi ,  Takao Sawa ,  Masashi Sahashi

    IPC分类号： H01F1055

    CPC分类号： H01F1/015 ,  F25B21/00 ,  Y02B30/66

    摘要： The magnetic material for magnetic refrigeration of the present invention is characterized by exhibiting, in a certain temperature region, preferably, only in part of a temperature region from 200 K to 350 K, an inflection point at which a second order differential coefficient of a magnetization curve changes from positive to negative with respect to a magnetic field, within the range of this magnetic field formed using a permanent magnet unit. This magnetic material of the present invention can generate a low temperature by using a relatively low magnetic field, by transferring the entropy between the electron spin system and the lattice system near the temperature at which an inflection point appears on the magnetization curve. Examples of the magnetic material meeting this condition are La(Fe,Si)13, (Hf,Ta)Fe2, (Ti,Sc)Fe2, and (Nb,Mo)Fe2, each containing 50 to 60 atomic % of transition metals such as Fe.

    摘要翻译： 本发明的磁性制冷用磁性材料的特征在于，在一定的温度范围内优选仅显示200K〜350K的温度区域的一部分，其中磁化强度的二阶微分系数 在使用永久磁铁单元形成的该磁场的范围内，曲线相对于磁场从正向变化为负。 本发明的这种磁性材料可以通过在电磁自旋系统和晶格系统之间传递熵在靠近磁化曲线上出现拐点的温度下，通过使用较低的磁场而产生低温。 满足该条件的磁性材料的实例是La（Fe，Si）13，（Hf，Ta）Fe 2，（Ti，Sc）Fe 2和（Nb，Mo）Fe 2，每个含有50至60原子％的过渡金属 如Fe。

    Magnetic head
    8.
    发明授权
    Magnetic head 失效
    磁头

    公开(公告)号：US06304415B1

    公开(公告)日：2001-10-16

    申请号：US09615783

    申请日：2000-07-13

    申请人： Kohichi Tateyama ,  Hiroaki Yoda ,  Tadahiko Kobayashi ,  Hiromi Sakata ,  Michiko Hara ,  Akio Hori ,  Takashi Koizumi ,  Tomohiko Nagata

    发明人： Kohichi Tateyama ,  Hiroaki Yoda ,  Tadahiko Kobayashi ,  Hiromi Sakata ,  Michiko Hara ,  Akio Hori ,  Takashi Koizumi ,  Tomohiko Nagata

    IPC分类号： G11B531

    CPC分类号： G11B5/3109 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/3153 ,  G11B5/3163 ,  G11B5/3967

    摘要： At least one magnetic pole out of a pair of magnetic poles is provided with a T-shaped magnetic pole having a magnetic pole chip at the position contacting with a magnetic gap and an auxiliary magnetic pole which is wider than thereof. The proximity of an air bearing surface of the T-shaped magnetic pole is composed of a laminated film containing a magnetic material layer with a high saturated magnetic flux density which composes the magnetic pole chip and a portion of the auxiliary magnetic pole and a magnetic material layer with a low saturated magnetic flux density which composes the remaining portion of the auxiliary magnetic pole. When the front portion of the magnetic pole with the track width of 1.8 &mgr;m or less is composed of a laminated film containing a magnetic material layer having a high saturated magnetic flux density and a magnetic material layer having a low saturated magnetic flux density, the thickness of the magnetic material layer having the high saturated magnetic flux density is 0.5 &mgr;m or more. According to the above described magnetic pole, the magnetic saturation near the tip portion of the magnetic pole is controlled, so that preferable magnetic field strength and magnetic field gradient can be attained when the track width is narrowed.

    摘要翻译： 在一对磁极中的至少一个磁极设置有在与磁隙接触的位置处具有磁极片的T形磁极和比其宽的辅助磁极。 T形磁极的空气轴承表面的接近度由包含构成磁极片和辅助磁极的一部分的磁性材料层和具有高饱和磁通密度的磁性材料层的叠层膜构成， 具有构成辅助磁极的剩余部分的低饱和磁通密度的层。 当磁道宽度为1.8μm或更小的磁极的前部由包含具有高饱和磁通密度的磁性材料层和具有低饱和磁通密度的磁性材料层的层叠膜构成时，厚度 具有高饱和磁通密度的磁性材料层的厚度为0.5μm以上。 根据上述磁极，控制磁极尖端部附近的磁饱和，从而当磁道宽度变窄时可以获得优选的磁场强度和磁场梯度。

    Yoke type magnetoresistance head and manufacturing method of the same
    9.
    发明授权
    Yoke type magnetoresistance head and manufacturing method of the same 失效
    轭型磁阻头及其制造方法

    公开(公告)号：US06256863B1

    公开(公告)日：2001-07-10

    申请号：US08815179

    申请日：1997-03-11

    申请人： Kazuhiro Saito ,  Akiko Saito ,  Hitoshi Iwasaki ,  Akihiko Tsutai ,  Hiroaki Yoda ,  Tadahiko Kobayashi ,  Yuichi Ohsawa ,  Masahi Sahashi ,  Yuzo Kamiguchi

    发明人： Kazuhiro Saito ,  Akiko Saito ,  Hitoshi Iwasaki ,  Akihiko Tsutai ,  Hiroaki Yoda ,  Tadahiko Kobayashi ,  Yuichi Ohsawa ,  Masahi Sahashi ,  Yuzo Kamiguchi

    IPC分类号： G11B542

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3113 ,  G11B5/3163 ,  G11B5/3903 ,  G11B5/3916 ,  G11B2005/3996 ,  Y10T29/49034

    摘要： A magnetic yoke having a magnetic gap provided in the side of the surface facing the medium is disposed on the surface of a substrate. An MR film is disposed on the surface of the magnetic yoke substantially parallel to the substrate with a predetermined separation from the surface S facing the medium. At least both end portions of the MR film are magnetically coupled to the magnetic yoke. A pair of leads for supplying sensing current to the MR film have magnetic lead portions formed from the same magnetic layers as the magnetic yoke. The magnetic lead portions curb deterioration of MR head properties and yield reduction during formation of the leads. Furthermore, a bias magnetic field is applied to the magnetic yoke and the MR film at least during operation of the head. This bias magnetic field is for instance provided by a magnetic field induced by the electric current. Alternatively, a magnetic field induced by the electric current is applied while heat-processing the magnetic yoke. Magnetic anisotropy is induced to the magnetic yoke in a direction differing according to the position. This magnetic anisotropy curbs Barkhausen noise caused by the magnetic yoke.

    摘要翻译： 在基板的表面上设置具有设置在面向介质的表面侧的磁隙的磁轭。 以与面向介质的表面S预定间隔的方式将磁性薄膜基本上平行于基板平行设置在磁轭的表面上。 MR膜的至少两个端部磁耦合到磁轭。 用于向MR膜提供感测电流的一对引线具有由与磁轭相同的磁性层形成的磁性引线部分。 磁性引线部分在引线形成期间抑制MR磁头特性的劣化和屈服减少。 此外，至少在头部的操作期间，向磁轭和MR膜施加偏置磁场。 该偏置磁场例如由电流引起的磁场提供。 或者，在对磁轭进行加热处理的同时施加由电流引起的磁场。 磁性各向异性在根据位置不同的方向上被引到磁轭上。 这种磁各向异性限制了由磁轭引起的Barkhausen噪声。

    Thin-film magnetic head having improved magnetic pole structure
    10.
    发明授权
    Thin-film magnetic head having improved magnetic pole structure 有权
    具有改善的磁极结构的薄膜磁头

    公开(公告)号：US06198597B1

    公开(公告)日：2001-03-06

    申请号：US09153858

    申请日：1998-09-16

    申请人： Kohichi Tateyama ,  Hiroaki Yoda ,  Atsuhito Sawabe ,  Naoyuki Inoue ,  Akio Hori ,  Tadahiko Kobayashi ,  Hiromi Sakata ,  Michiko Hara ,  Takasi Koizumi ,  Tomohiko Nagata ,  Takeo Sakakubo ,  Kei Sakoda

    发明人： Kohichi Tateyama ,  Hiroaki Yoda ,  Atsuhito Sawabe ,  Naoyuki Inoue ,  Akio Hori ,  Tadahiko Kobayashi ,  Hiromi Sakata ,  Michiko Hara ,  Takasi Koizumi ,  Tomohiko Nagata ,  Takeo Sakakubo ,  Kei Sakoda

    IPC分类号： G11B531

    CPC分类号： G11B5/3113 ,  G11B5/3116 ,  G11B5/3163

    摘要： A thin-film magnetic head comprises a magnetic gap disposed to be positioned on an air bearing surface of the magnetic head, a pair of magnetic poles disposed to hold the magnetic gap therebetween, and a coil positioned between the pair of the magnetic poles to intersect the magnetic poles, wherein at least one of the magnetic poles being composed of a T-shaped magnetic pole, the T-shaped magnetic pole comprising a front part of a magnetic pole contacting with the magnetic gap, an intermediate part of a magnetic pole lying on the front part, and a rear part of a magnetic pole lying on the intermediate part, wherein a width of the front part roughly defines a track width, the rear part has a wider width in a direction of track width than a width of the front part, and the intermediate part contacts with the rear part at an entire width of the rear part at the air bearing surface and has a narrower width at a contacting face with the front part than the width of the rear part.

    摘要翻译： 薄膜磁头包括设置在磁头的空气轴承表面上的磁隙，设置成保持磁隙的一对磁极和位于一对磁极之间的线圈，以相交 磁极，其中至少一个磁极由T形磁极组成，T形磁极包括与磁隙接触的磁极的前部，位于磁极的中间部分 在前部的前部和位于中间部的磁极的后部，前部的宽度大致限定轨道宽度，后部在轨道宽度方向上的宽度比宽度宽 前部，并且中间部分在后部的空气轴承表面的整个宽度处与后部接触，并且在与前部的接触面处具有比后部的宽度更窄的宽度。