公开(公告)号：US08154828B2

公开(公告)日：2012-04-10

申请号：US12500835

申请日：2009-07-10

申请人： Yoshihiro Tsuchiya ,  Shinji Hara ,  Kiyoshi Noguchi ,  Migaku Takahashi ,  Masakiyo Tsunoda

发明人： Yoshihiro Tsuchiya ,  Shinji Hara ,  Kiyoshi Noguchi ,  Migaku Takahashi ,  Masakiyo Tsunoda

IPC分类号： G11B5/39

CPC分类号： G11B5/3929 ,  B82Y10/00 ,  B82Y25/00 ,  G11B2005/3996

摘要： An MR element in a CPP structure includes a spacer layer made of Cu, a magnetic pinned layer containing CoFe and a free layer containing CoFe that are laminated to sandwich the spacer layer. The free layer is located below the magnetic pinned layer. The free layer is oriented in a (001) crystal plane, the spacer layer is formed and oriented in a (001) crystal plane on the (001) crystal plane of the free layer. Therefore, in a low resistance area where an area resistivity (AR) of the MR element is, for example, lower than 0.3 Ω·μm2, an MR element that has a large variation of a resistance is obtained.

摘要翻译： CPP结构中的MR元件包括由Cu制成的间隔层，包含CoFe的磁性固定层和层压以夹持间隔层的CoFe的自由层。 自由层位于磁性固定层的下方。 自由层在（001）晶面取向，间隔层形成并定向在自由层的（001）晶面上的（001）晶面上。 因此，在MR元件的面积电阻率（AR）例如低于0.3

公开(公告)号：US07618708B2

公开(公告)日：2009-11-17

申请号：US10926868

申请日：2004-08-26

申请人： Mikihisa Mizuno ,  Yuichi Sasaki ,  Andrew Chak Chung Yu ,  Makoto Inoue ,  Migaku Takahashi ,  Kazuyuki Tohji ,  Jeyaderan Balachandran

发明人： Mikihisa Mizuno ,  Yuichi Sasaki ,  Andrew Chak Chung Yu ,  Makoto Inoue ,  Migaku Takahashi ,  Kazuyuki Tohji ,  Jeyaderan Balachandran

IPC分类号： B32B5/16

CPC分类号： B82Y25/00 ,  G11B5/855 ,  Y10T428/254 ,  Y10T428/2991 ,  Y10T428/2995

摘要： An organic layer capable of forming surface areas having an adsorption property different from that of a periphery due to the chemical change of a surface functional group is formed on a board. The surface of the organic layer is patterned and oxidized by a scanning probe microscope to form an array pattern in which small sections for adsorbing nanoparticles are arranged. Then, nanoparticle dispersed solution is applied to the organic layer having the array pattern or the organic layer is dipped in the nanoparticle dispersed solution to form a particle layer on the organic layer. At this time, the nanoparticles in the nanoparticle dispersed solution are respectively fixed only onto the small sections. Therefore, a nanoparticle array on which groups of nanoparticles are arranged in an array can be obtained. Thus, the nanoparticle array on which the groups of the nanoscale particles are arranged on the board is efficiently formed.

摘要翻译： 在板上形成能够形成由于表面官能团的化学变化而具有与周围不同的吸附性的表面积的有机层。 通过扫描探针显微镜对有机层的表面进行图案化和氧化，形成其中排列有用于吸附纳米颗粒的小截面的阵列图案。 然后，将纳米颗粒分散溶液施加到具有阵列图案的有机层，或者将有机层浸渍在纳米颗粒分散溶液中以在有机层上形成颗粒层。 此时，纳米颗粒分散溶液中的纳米颗粒分别仅固定在小部分上。 因此，可以获得纳米颗粒阵列，其中纳米颗粒组排列成阵列。 因此，能够有效地形成纳米级的纳米粒子群配置在基板上的纳米粒子阵列。

公开(公告)号：US20080180860A1

公开(公告)日：2008-07-31

申请号：US11998361

申请日：2007-11-29

申请人： Migaku Takahashi ,  Masakiyo Tsunoda ,  Kojiro Komagaki

发明人： Migaku Takahashi ,  Masakiyo Tsunoda ,  Kojiro Komagaki

IPC分类号： G11B5/33

CPC分类号： B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3929 ,  G11B2005/3996 ,  H01F10/3254 ,  H01F10/3272

摘要： In the magnetic thin film, a magnetization direction of a ferromagnetic layer, e.g., a pinned layer, can be securely fixed. The magnetic thin film comprises: an antiferromagnetic layer; and the ferromagnetic layer. The antiferromagnetic layer is composed of a manganic antiferromagnetic material, and a manganese (Mn) layer is formed between the antiferromagnetic layer and the ferromagnetic layer.

摘要翻译： 在磁性薄膜中，可以牢固地固定铁磁层的磁化方向，例如被钉扎层。 磁性薄膜包括：反铁磁层; 和铁磁层。 反铁磁层由锰铁反铁磁性材料构成，反铁磁层与铁磁层之间形成锰（Mn）层。

公开(公告)号：US20070259214A1

公开(公告)日：2007-11-08

申请号：US11666309

申请日：2005-10-28

申请人： Migaku Takahashi ,  Masahiro Oka ,  Akira Kikitsu

发明人： Migaku Takahashi ,  Masahiro Oka ,  Akira Kikitsu

IPC分类号： G11B5/667

CPC分类号： G11B5/732

摘要： The invention provides a perpendicular magnetic recording medium in which the recording density is greatly increased with little deviation of the crystal structure. A perpendicular magnetic recording medium has at least a soft magnetic under layer, an orientation control layer, a perpendicular magnetic layer, and a protective layer, which are formed on a nonmagnetic substrate, the orientation control layer consisting of a plurality of layers including a seed layer and an intermediate layer from the substrate side. Preferably, the seed layer and the intermediate layer each have a hexagonal close-packed (hcp) structure, and the average grain size of the seed layer is between 8 nm and 20 nm. The main component of the seed layer is preferably Mg, and the main component of the intermediate layer is preferably Ru.

摘要翻译： 本发明提供了一种垂直磁记录介质，其中记录密度大大增加，晶体结构几乎没有偏差。 垂直磁记录介质至少形成在非磁性基板上的软磁下层，取向控制层，垂直磁性层和保护层，所述取向控制层由包括种子的多个层 层和中间层。 优选地，种子层和中间层各自具有六方密堆积（hcp）结构，种子层的平均晶粒尺寸在8nm和20nm之间。 种子层的主要成分优选为Mg，中间层的主要成分优选为Ru。

公开(公告)号：US20130257573A1

公开(公告)日：2013-10-03

申请号：US13825584

申请日：2011-09-22

申请人： Migaku Takahashi ,  Tomoyuki Ogawa ,  Yasunobu Ogata ,  Akimasa Sakuma ,  Naoya Kobayashi ,  Chammika Ruwan Polwatta Gallage ,  Kaori Kohara

发明人： Migaku Takahashi ,  Tomoyuki Ogawa ,  Yasunobu Ogata ,  Akimasa Sakuma ,  Naoya Kobayashi ,  Chammika Ruwan Polwatta Gallage ,  Kaori Kohara

IPC分类号： H01F7/02 ,  H01F41/02

CPC分类号： H01F7/02 ,  B22F9/22 ,  B22F2998/10 ,  B22F2999/00 ,  B82Y30/00 ,  C01B21/0602 ,  C01B21/0622 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/42 ,  C22C29/16 ,  H01F1/065 ,  H01F1/083 ,  H01F41/02 ,  Y10T428/2982 ,  B22F2201/013 ,  B22F1/0088 ,  B22F2201/016 ,  C22C33/0235 ,  B22F1/0085

摘要： The present invention relates to ferromagnetic particles comprising an Fe16N2 compound phase in an amount of not less than 70% as measured by Mössbauer spectrum, and at least one metal element X selected from the group consisting of Mn, Ni, Ti, Ga, Al, Ge, Zn, Pt and Si in such an amount that a molar ratio of the metal element X to Fe is 0.04 to 25%, the ferromagnetic particles having a BHmax value of not less than 5 MGOe, and a process for producing the ferromagnetic particles, and further relates to an anisotropic magnet or a bonded magnet which is obtained by magnetically orienting the ferromagnetic particles. The ferromagnetic particles according to the present invention can be produced in an industrial scale and are in the form of Fe16N2 particles comprising different kinds of metal elements having a large BHmax value.

摘要翻译： 本发明涉及由Mössbauer光谱测定的不少于70％的Fe 16 N 2化合物相和至少一种选自Mn，Ni，Ti，Ga，Al的金属元素X的铁磁性颗粒， Ge，Zn，Pt和Si，金属元素X与Fe的摩尔比为0.04〜25％，BHmax值为5MGOe以上的铁磁性粒子，以及铁磁性粒子的制造方法 并且还涉及通过磁性取向铁磁性颗粒获得的各向异性磁体或粘结磁体。 根据本发明的铁磁颗粒可以以工业规模生产，并且是包含具有大的BHmax值的不同种类的金属元素的Fe16N2颗粒的形式。

公开(公告)号：US08116035B2

公开(公告)日：2012-02-14

申请号：US11917088

申请日：2006-06-09

申请人： Migaku Takahashi ,  Masahiro Oka ,  Akira Kikitsu

发明人： Migaku Takahashi ,  Masahiro Oka ,  Akira Kikitsu

IPC分类号： G11B5/74 ,  G11B5/66

CPC分类号： H01F10/3227 ,  G11B5/65 ,  G11B5/66 ,  G11B5/855 ,  H01F10/007 ,  H01F10/16 ,  H01F10/3286

摘要： The invention provides a magnetic recording medium, and a magnetic recording and reproducing apparatus. The magnetic recording medium includes a substrate 11, an under layer 12 formed on the substrate 11, a magnetic recording layer 13 formed on the under layer 12, and a protective layer 14 formed on the magnetic recording layer 13. The magnetic recording layer 13 is composed of a primary recording layer 14 and a secondary recording layer 15 which are mutually exchange-coupled. The primary recording layer 14 has magnetic grains and a nonmagnetic material that surrounds the magnetic grains, and has a perpendicular magnetic anisotropy. The secondary recording layer 15 is made of a material having a negative crystal magnetic anisotropy and its easy plane of the magnetization is a plane of the medium.

摘要翻译： 本发明提供一种磁记录介质和磁记录和重放装置。 磁记录介质包括基板11，形成在基板11上的底层12，形成在下层12上的磁记录层13和形成在磁记录层13上的保护层14。磁记录层13 由相互交换耦合的主记录层14和辅助记录层15组成。 主记录层14具有磁性粒子和围绕磁性粒子的非磁性材料，并且具有垂直的磁各向异性。 辅助记录层15由具有负晶体磁各向异性的材料制成，其易磁化平面是介质的平面。

公开(公告)号：US20110255197A1

公开(公告)日：2011-10-20

申请号：US12763577

申请日：2010-04-20

申请人： Yoshihiro TSUCHIYA ,  Kiyoshi Noguchi ,  Migaku Takahashi ,  Masakiyo Tsunoda

发明人： Yoshihiro TSUCHIYA ,  Kiyoshi Noguchi ,  Migaku Takahashi ,  Masakiyo Tsunoda

IPC分类号： G11B5/127 ,  G11B5/48 ,  H02N99/00

CPC分类号： G11B5/6005 ,  G11B5/314 ,  G11B2005/0024

摘要： A microwave oscillation element of the present invention includes a lamination main part in which an oscillating layer that is a magnetization free layer and that generates a high frequency electromagnetic field by an excitation of a spin wave, a nonmagnetic intermediate layer, a polarizer layer, and a reference layer that is to be a base magnetic layer of a spin transfer due to application of current are layered in this order. The oscillating layer is made of CoIr, the polarizer layer is configured of CoCr or CoRu; and the nonmagnetic intermediate layer is configured of Cr or Ru. As a result, the efficiency of the spin injection is improved and the microwave oscillation element where the oscillation efficiency is excellent can be realized.

摘要翻译： 本发明的微波振荡元件包括层叠主体部，其中，作为磁化自由层的振动层，通过自旋波的激发产生高频电磁场，非磁性中间层，偏振片层和 将由于施加电流而成为自旋转移的基础磁性层的参考层按此顺序分层。 振荡层由CoIr制成，偏振层由CoCr或CoRu构成; 非磁性中间层由Cr或Ru构成。 结果，提高了自旋注入的效率，并且可以实现振荡效率优异的微波振荡元件。

公开(公告)号：US20090034119A1

公开(公告)日：2009-02-05

申请号：US11886635

申请日：2006-03-29

申请人： Migaku Takahashi ,  Masahiro Oka ,  Akira Kikitsu

发明人： Migaku Takahashi ,  Masahiro Oka ,  Akira Kikitsu

IPC分类号： G11B5/127 ,  G11B5/667

CPC分类号： G11B5/667 ,  H01F10/16 ,  H01F10/30

摘要： The invention provides a perpendicular recording medium with high recording density, and a magnetic recording and reproducing apparatus, by improving the function of magnetic anisotropy of a soft magnetic underlayer. The perpendicular recording medium has at least a soft magnetic underlayer and a perpendicular magnetic recording layer on a non-magnetic substrate, wherein when Ku⊥ (erg/cm3) is defined as a perpendicular magnetic anisotropic energy, and Ms (emu/cm 3) is defined as a saturation magnetization of the soft magnetic underlayer, Ku⊥ of the soft magnetic underlayer has a negative value and Ku⊥

摘要翻译： 通过提高软磁性底层的磁各向异性的功能，本发明提供了具有高记录密度的垂直记录介质和磁记录和再现装置。 垂直记录介质在非磁性基板上至少具有软磁性底层和垂直磁记录层，其中当Ku⊥（erg / cm3）被定义为垂直磁各向异性能时，Ms（emu / cm 3） 定义为软磁性底层的饱和磁化强度，软磁性底层的Ku⊥为负值，Ku⊥<-2piMs2。 结果，软磁性底层的易磁化轴在基板表面平坦地取向，这有效地抑制了WATE现象和尖峰噪声。

公开(公告)号：US07297423B2

公开(公告)日：2007-11-20

申请号：US11067137

申请日：2005-02-25

申请人： Mikihisa Mizuno ,  Yuichi Sasaki ,  Makoto Inoue ,  Kenji Yazawa ,  Migaku Takahashi ,  Yasuo Tateno ,  Teiichi Miyauchi

发明人： Mikihisa Mizuno ,  Yuichi Sasaki ,  Makoto Inoue ,  Kenji Yazawa ,  Migaku Takahashi ,  Yasuo Tateno ,  Teiichi Miyauchi

IPC分类号： B01J13/12

CPC分类号： H01P3/081 ,  H05K1/0233 ,  H05K1/0373 ,  H05K2201/0215 ,  H05K2201/086 ,  Y10T428/24917 ,  Y10T428/25 ,  Y10T428/257 ,  Y10T428/31609

摘要： A PCB that can transmit a high frequency signal of a GHz band with a low loss includes an insulator and magnetic nanoparticles dispersed in the insulator.

摘要翻译： 可以以低损耗传输GHz频带的高频信号的PCB包括分散在绝缘体中的绝缘体和磁性纳米颗粒。

公开(公告)号：US20070110347A1

公开(公告)日：2007-05-17

申请号：US11552680

申请日：2006-10-25

申请人： Soichi Sato ,  Takashi Abe ,  Eiko Miyasato ,  Migaku Takahashi ,  Masakiyo Tsunoda

发明人： Soichi Sato ,  Takashi Abe ,  Eiko Miyasato ,  Migaku Takahashi ,  Masakiyo Tsunoda

IPC分类号： F16C32/06

CPC分类号： F16C29/007 ,  F16C29/025 ,  F16C32/06 ,  F16C32/0603 ,  F16C2300/62

摘要： A first and a second static-pressure gas bearings supporting a rod at two locations in the axial direction in the non-contact manner are provided, in which the first static-pressure gas bearing is fixedly supported by a bearing housing, while the second static-pressure gas bearing is supported capable of displacement through a movable support mechanism. And this movable support mechanism has an actuator and suppresses contact of the rod with the static-pressure gas bearings by displacing the shaft center of the second static-pressure gas bearing with respect to the first static-pressure gas bearing by this actuator according to a load acting on the rod.

摘要翻译： 提供了以非接触方式在轴向两个位置处支撑杆的第一和第二静压气体轴承，其中第一静压气体轴承由轴承壳体固定地支撑，而第二静态 压力气体轴承支撑能够通过可移动的支撑机构移动。 并且该可动支承机构具有致动器，并通过使该致动器相对于该致动器相对于第一静压气体轴承移动第二静压气体轴承的轴心而抑制杆与静压气体轴承的接触， 作用在杆上的载荷。