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11. 发明授权

US07816746B2 Spin-tunnel transistor and magnetic reproducing head 有权
标题翻译：旋转晶体管和磁性再现头
公开(公告)号：US07816746B2
公开(公告)日：2010-10-19
申请号：US10669007
申请日：2003-09-24
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： H01L21/70 , H01F10/00
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/06 , G11B5/332 , G11B5/3919 , G11B2005/3996 , H01F10/3268 , H01L29/66984 , H01L43/08
摘要： A spin-tunnel transistor having a tunnel barrier layer formed of an antiferromagnetic material which is exchange coupled with a first or second ferromagnetic metal layer of a base B formed adjoining to the antiferromagnetic material, so as to fix magnetization of the adjoining ferromagnetic layer. The base B includes a nonmagnetic metal layer which is formed between the first and second ferromagnetic metal layers and decouple magnetization coupling between the first and second ferromagnetic metal layers. The base B is formed between a collector and an emitter to form tri-terminal device. Those spin-tunnel transistor may be used as a sensor of a magnetic reproducing head used in a hard disk drive.
摘要翻译：一种自旋隧道晶体管，其具有由反铁磁材料形成的隧道势垒层，该反铁磁材料与毗邻于铁磁材料的基底B的第一或第二铁磁性金属层交换耦合，以固定邻接的铁磁层的磁化。基体B包括形成在第一和第二强磁性金属层之间的非磁性金属层，并且使第一和第二铁磁金属层之间的磁化耦合解耦。基极B形成在集电极和发射极之间以形成三端子器件。那些自旋隧道晶体管可以用作在硬盘驱动器中使用的磁再现头的传感器。

12. 发明申请

US20090201614A1 SPIN-TORQUE OSCILLATOR, MAGNETIC HEAD INCLUDING THE SPIN-TORQUE OSCILLATOR, AND MAGNETIC RECORDING AND REPRODUCING APPARATUS 有权
标题翻译：旋转振动器，包括旋转扭矩振荡器的磁头和磁记录和再现装置
公开(公告)号：US20090201614A1
公开(公告)日：2009-08-13
申请号：US12240042
申请日：2008-09-29
申请人： Kiwamu Kudo , Tazumi Nagasawa , Koichi Mizushima , Rie Sato
发明人： Kiwamu Kudo , Tazumi Nagasawa , Koichi Mizushima , Rie Sato
IPC分类号： G11B5/33
CPC分类号： G11B5/02 , B82Y25/00 , G01R33/093 , G01R33/1284 , G11B5/3903 , G11B2005/0002 , H01F10/325 , H01F10/3254 , H01L43/08 , H03B15/006 , Y10T428/1114 , Y10T428/1121 , Y10T428/1143
摘要： It is made possible to to provide a spin-torque oscillator that has a high Q value and a high output. A spin-torque oscillator includes: an oscillating field generating unit configured to generate an oscillating field; and a magnetoresistive element including a magnetoresistive effect film including a first magnetization pinned layer of which a magnetization direction is pinned, a first magnetization free layer of which a magnetization direction oscillates with the oscillating field, and a first spacer layer interposed between the first magnetization pinned layer and the first magnetization free layer.
摘要翻译：可以提供具有高Q值和高输出的自旋扭矩振荡器。自旋转矩振荡器包括：振荡场产生单元，被配置为产生振荡场; 以及包括磁阻效应膜的磁阻元件，该磁阻效应膜包括其磁化方向被钉扎的第一磁化钉扎层，磁化方向与振荡场振动的第一磁化自由层，以及插入在第一磁化固定层和第一磁化自由层。

13. 发明申请

US20050219771A1 Magnetic sensor, magnetic field sensing method, semagnetic recording head, and magnetic memory device 有权
标题翻译：磁传感器，磁场检测方法，磁记录头，磁记忆装置
公开(公告)号：US20050219771A1
公开(公告)日：2005-10-06
申请号：US11087621
申请日：2005-03-24
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： G01R33/09 , G11B5/127 , G11B5/31 , G11B5/33 , G11B20/10 , G11B20/24 , H01F10/32 , H01L43/08
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3196 , G11B20/10009 , G11B20/10046 , G11B20/24 , H01F10/3272 , H01F10/3286 , H01F10/329 , H01L43/08
摘要： A magnetic sensor includes a magnetoresistance element having a peak of a thermal fluctuation strength of magnetization under a magnetic field having a certain frequency, a frequency filter connected to the magnetoresistance element and having its transmittance decreased or increased in substantially the frequency of the magnetic field to output a signal corresponding substantially to the peak of the thermal fluctuation strength of magnetization, and a detector connected to the frequency filter to detect the magnetic field based on the signal of the frequency filter.
摘要翻译：磁传感器包括具有在具有一定频率的磁场下具有磁化强度的热波动强度的峰值的磁阻元件，连接到磁阻元件的频率滤波器，并且其透射率基本上在磁场频率下降或增加至输出基本上与磁化强度的热波动强度的峰值相对应的信号，以及连接到频率滤波器的检测器，基于频率滤波器的信号来检测磁场。

14. 发明申请

US20050024788A1 Magnetic element, magnetic information reproducing head, and magnetic information reproducing apparatus 有权
标题翻译：磁性元件，磁信息再现头和磁信息重放装置
公开(公告)号：US20050024788A1
公开(公告)日：2005-02-03
申请号：US10875273
申请日：2004-06-25
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： G11B5/39 , G11B5/127 , G11B5/31 , G11B5/33 , H01F10/16 , H01F10/32 , H01L29/82
CPC分类号： G11B5/31 , G11B5/127 , G11B5/33
摘要： A magnetic element has a first magnetic material exhibiting thermal fluctuation of magnetization which depends on an external magnetic field and generates spin fluctuation in conduction electrons; a nonmagnetic conductive material which is laminated on the first magnetic material and transfers the conduction electrons; a second magnetic material which is laminated on the nonmagnetic conductive material and generates a magnetic resonance upon injection of the conduction electrons; a first electrode electrically coupled with the first magnetic material; and a second electrode electrically coupled with the second magnetic material.
摘要翻译：磁性元件具有表现出取决于外部磁场的磁化热波动的第一磁性材料，并产生传导电子的自旋波动; 非磁性导电材料，层压在第一磁性材料上并传导传导电子; 第二磁性材料层压在非磁性导电材料上并在注入导电电子时产生磁共振; 与第一磁性材料电耦合的第一电极; 以及与第二磁性材料电耦合的第二电极。

15. 发明授权

US06833598B2 Spin valve transistor 失效
标题翻译：自旋阀晶体管
公开(公告)号：US06833598B2
公开(公告)日：2004-12-21
申请号：US10320648
申请日：2002-12-17
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： H01L2982
CPC分类号： H01L29/66984
摘要： There is provided a spin valve transistor that comprises a collector region made of semiconductor, a base region provided on the collector region and including a first ferromagnetic layer whose magnetization direction changes in accordance with a direction of an external magnetic field, a barrier layer provided on the base layer and made of insulator or semiconductor, and an emitter region provided on the barrier layer and including a second ferromagnetic layer whose magnetization direction is fixed.
摘要翻译：提供了一种自旋阀晶体管，其包括由半导体制成的集电极区域，设置在集电极区域上的基极区域，并且包括其磁化方向根据外部磁场的方向而变化的第一铁磁层，设置在其上的阻挡层所述基底层由绝缘体或半导体制成，以及设置在所述阻挡层上并包括其磁化方向固定的第二铁磁层的发射极区域。

16. 发明授权

US5545612A Superconductor element and method of manufacturing the same 失效
标题翻译：超导体元件及其制造方法
公开(公告)号：US5545612A
公开(公告)日：1996-08-13
申请号：US432054
申请日：1995-05-01
申请人： Koichi Mizushima , Jiro Yoshida , Koh-ichi Kubo
发明人： Koichi Mizushima , Jiro Yoshida , Koh-ichi Kubo
IPC分类号： H01L39/22 , B32B9/00
CPC分类号： H01L39/225 , H01L39/228 , Y10S428/93 , Y10S505/701 , Y10S505/702
摘要： A superconductor element includes a first layer of an oxide superconductor, a second layer of an insulator, semiconductor, or metal, and an interlayer interposed between the first and second layers and formed of AgO.sub.x (where in 0
摘要翻译：超导体元件包括第一层氧化物超导体，第二层绝缘体，半导体或金属，以及介于第一和第二层之间并由AgO x形成的层（其中0

17. 发明授权

US5371365A Scanning probe microscopy 失效
标题翻译：扫描探针显微镜
公开(公告)号：US5371365A
公开(公告)日：1994-12-06
申请号：US11906
申请日：1993-02-01
申请人： Miyoko Watanabe , Koichi Mizushima , Tomio Ono , Tsuyoshi Kobayashi , Satoshi Itoh
发明人： Miyoko Watanabe , Koichi Mizushima , Tomio Ono , Tsuyoshi Kobayashi , Satoshi Itoh
IPC分类号： G01B7/34 , G01Q10/00 , G01B21/30 , G01Q10/02 , G01Q10/04 , G01Q30/10 , G01Q60/16 , G01Q70/04 , G01Q70/14 , G01Q70/16 , H01J37/252 , H01L41/18
CPC分类号： G01Q60/16 , B82Y35/00 , G01Q10/04 , Y10S977/879
摘要： There is provided a scanning probe microscopy comprising a probe 6 situated to face the surface of an sample 1, a first piezoelectric element 8 for moving the sample 1 and the probe 6 relative to each other in a first direction perpendicular to the surface of the sample, and second and third piezoelectric elements 3 and 4 for moving the probe and the sample relative to each other in second and third directions perpendicular to the first direction, thereby enabling the probe to scan the surface of the sample, wherein at least one of the first to third piezoelectric elements 8, 3 and 4, which is closest to the sample 1, is formed of a single crystal.
摘要翻译：提供了扫描探针显微镜，其包括位于样品1的表面上的探针6，用于在垂直于样品表面的第一方向上相对于彼此移动样品1和探针6的第一压电元件8 以及用于在与第一方向垂直的第二和第三方向上相对于彼此移动探针和样品的第二和第三压电元件3和4，从而使得探针能够扫描样品的表面，其中至少一个最靠近样品1的第一至第三压电元件8,3和4由单晶形成。

18. 发明申请

US20130107395A1 MAGNETIC HEAD, MAGNETIC SENSOR, AND MAGNETIC RECORDING/REPRODUCING APPARATUS 有权
标题翻译：磁头，磁传感器和磁记录/再现装置
公开(公告)号：US20130107395A1
公开(公告)日：2013-05-02
申请号：US13655940
申请日：2012-10-19
申请人： Tazumi Nagasawa , Hirofumi Suto , Kiwamu Kudo , Rie Sato , Koichi Mizushima , Tao Yang
发明人： Tazumi Nagasawa , Hirofumi Suto , Kiwamu Kudo , Rie Sato , Koichi Mizushima , Tao Yang
IPC分类号： G11B5/127 , G11B5/33 , G01R33/12 , G11B21/02
CPC分类号： G01R33/093 , B82Y10/00 , G11B5/3909 , G11B5/3932 , G11B2005/3996 , Y10T428/11 , Y10T428/1171 , Y10T428/1193
摘要： A magnetic head according to an embodiment includes: a spin-torque oscillator comprising a first ferromagnetic layer, a second ferromagnetic layer, a third ferromagnetic layer provided on the opposite side of the second ferromagnetic layer from the first ferromagnetic layer, a first nonmagnetic layer provided between the first ferromagnetic layer and the second ferromagnetic layer, a second nonmagnetic layer provided between the second ferromagnetic layer and the third ferromagnetic layer, a first electrode provided on a surface on the opposite side of the first ferromagnetic layer from the first nonmagnetic layer, and a second electrode provided on a surface on the opposite side of the third ferromagnetic layer from the second nonmagnetic layer. Magnetization precession is induced in each of the first through third ferromagnetic layers when current is applied between the first and second electrodes.
摘要翻译：根据实施例的磁头包括：自旋扭矩振荡器，包括第一铁磁层，第二铁磁层，设置在与第一铁磁层相反的第二铁磁层相反侧的第三铁磁层，提供第一非磁性层在所述第一铁磁层和所述第二铁磁层之间，设置在所述第二铁磁层和所述第三铁磁层之间的第二非磁性层，设置在所述第一铁磁层与所述第一非磁性层相反侧的表面上的第一电极，以及设置在所述第三铁磁层与所述第二非磁性层相反侧的表面上的第二电极。当在第一和第二电极之间施加电流时，在第一至第三铁磁层中的每一个中引起磁化进动。

19. 发明授权

US08207806B2 Magnetic oscillation element 有权
标题翻译：磁振元件
公开(公告)号：US08207806B2
公开(公告)日：2012-06-26
申请号：US13216968
申请日：2011-08-24
申请人： Kiwamu Kudo , Koichi Mizushima , Tazumi Nagasawa , Rie Sato
发明人： Kiwamu Kudo , Koichi Mizushima , Tazumi Nagasawa , Rie Sato
IPC分类号： H01F1/00 , H01F3/00 , H01F7/00
CPC分类号： H03B15/006 , H01L43/08
摘要： According to one embodiment, magnetization directions of a magnetic free layer and a magnetic pinned layer are parallel to junction planes between the magnetic free layer and a spacer layer and between the magnetic pinned layer and the spacer layer. The magnetic free layer has a uniaxial magnetic anisotropy, and generates a magnetization oscillation when a current larger than an oscillation threshold current flows through the magnetic free layer. A magnetic field generator controls a magnitude and a direction of an external magnetic field to cancel a shift amount of an oscillation frequency caused by a diamagnetic field due to the magnetization oscillation and a shift amount of the oscillation frequency caused by a magnetic field due to the uniaxial magnetic anisotropy.
摘要翻译：根据一个实施例，磁性自由层和磁性被钉扎层的磁化方向平行于磁性自由层和间隔层之间以及磁性被钉扎层和间隔层之间的结面。磁性自由层具有单轴磁各向异性，并且当大于振荡阈值电流的电流流过无磁层时，产生磁化振动。磁场发生器控制外部磁场的大小和方向，以抵消由于磁化振动引起的由抗磁场引起的振荡频率的偏移量和由于磁场引起的磁场引起的振荡频率的偏移量单轴磁各向异性。

20. 发明授权

US07961439B2 High-frequency oscillation element, magnetic information recording head, and magnetic storage device 有权
标题翻译：高频振荡元件，磁信息记录头和磁存储装置
公开(公告)号：US07961439B2
公开(公告)日：2011-06-14
申请号：US10878387
申请日：2004-06-29
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： G11B5/39
CPC分类号： G11B5/314 , G11B2005/0005 , H03B15/006
摘要： A high-frequency oscillation element has a ferromagnetic material which exhibits thermal fluctuation of magnetization and generates spin fluctuations in conduction electrons, a nonmagnetic conductive material which is laminated on the first magnetic material and transfers the conduction electrons, a magnetic material which is laminated on the nonmagnetic conductive material, generates magnetic resonance upon injection of the conduction electrons, and imparts magnetic dipole interaction to magnetization of a neighboring magnetic area by means of magnetic vibration stemming from the magnetic resonance, a first electrode electrically coupled with the first magnetic material, and a second electrode electrically coupled with the second magnetic material.
摘要翻译：高频振荡元件具有表现出磁化强度波动并产生导电电子自旋波动的铁磁材料，层叠在第一磁性材料上并传导导电电子的非磁性导电材料，层叠在第一磁性材料上的磁性材料非磁性导电材料在注入导电电子时产生磁共振，并且借助于从磁共振产生的磁振动，与第一磁性材料电耦合的第一电极和相互磁性区域的电磁耦合，使相邻磁场的磁化与磁偶极相互作用，以及与第二磁性材料电耦合的第二电极。

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