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31. 发明申请

US20120075752A1 MAGNETIC HEAD 有权
标题翻译：磁头
公开(公告)号：US20120075752A1
公开(公告)日：2012-03-29
申请号：US13207802
申请日：2011-08-11
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： G11B5/33
CPC分类号： G11B5/3903 , G01R33/098 , G11B2005/0024 , H01F10/3254 , H01F10/329
摘要： According to one embodiment, there is provided a magnetic head for a three-dimensional magnetic recording/reproducing apparatus, the head executing reading from or writing to a recording medium, utilizing a magnetic resonance, the medium including stacked layers formed of magnetic substances having different resonance frequencies, the head comprising a spin torque oscillation unit and auxiliary magnetic poles. The unit is operable to simultaneously oscillate at a plurality of frequencies to cause the magnetic resonance, when reading or writing. The magnetic poles assist the unit, when reading or writing. Further, according to another embodiment, there is provided a recording magnetic head using a high-frequency assist method and comprising a microwave magnetic field applying unit and a recording magnetic pole. The unit executes writing to a recording medium, and is formed of a plurality of spin torque oscillation elements having phases thereof synchronized. The magnetic pole assists the writing.
摘要翻译：根据一个实施例，提供了一种用于三维磁记录/再现装置的磁头，头部利用磁共振来执行从记录介质的读取或向记录介质写入，该介质包括由具有不同的磁性物质形成的层叠层谐振频率，头部包括自旋扭矩振荡单元和辅助磁极。该单元可操作以在读取或写入时以多个频率同时振荡以引起磁共振。当阅读或写入时，磁极帮助单元。此外，根据另一实施例，提供了一种使用高频辅助方法并包括微波磁场施加单元和记录磁极的记录磁头。该单元对记录介质执行写入，并且由其相位同步的多个自旋转矩振荡元件形成。磁极帮助写作。

32. 发明授权

US07982986B2 Signal reproducing method, magnetic head and magnetic recording and reproducing apparatus 有权
标题翻译：信号再现方法，磁头和磁记录和重放装置
公开(公告)号：US07982986B2
公开(公告)日：2011-07-19
申请号：US12889686
申请日：2010-09-24
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： G11B20/06
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/398 , G11B20/10009 , G11B2005/001 , G11B2005/0024 , G11B2005/3996
摘要： A magnetic head, includes a magnetic oscillation element, the oscillation frequency of which is modulated by a medium magnetic field, and a reproducing device configured to detect a phase difference between the adjacent oscillation signals derived from the magnetic oscillation element and output a phase difference signal as a reproduced signal.
摘要翻译：一种磁头，包括其振荡频率由中等磁场调制的磁振动元件，以及再现装置，被配置为检测从磁振动元件导出的相邻振荡信号之间的相位差，并输出相位差信号作为再生信号。

33. 发明授权

US07826160B2 Signal reproducing method, magnetic head and magnetic recording and reproducing apparatus 有权
标题翻译：信号再现方法，磁头和磁记录和重放装置
公开(公告)号：US07826160B2
公开(公告)日：2010-11-02
申请号：US12233629
申请日：2008-09-19
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： G11B20/06
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/398 , G11B20/10009 , G11B2005/001 , G11B2005/0024 , G11B2005/3996
摘要： A magnetic head, includes a magnetic oscillation element, the oscillation frequency of which is modulated by a medium magnetic field, and a reproducing device configured to detect a phase difference between the adjacent oscillation signals derived from the magnetic oscillation element and output a phase difference signal as a reproduced signal.
摘要翻译：一种磁头，包括其振荡频率由中等磁场调制的磁振动元件，以及再现装置，被配置为检测从磁振动元件导出的相邻振荡信号之间的相位差，并输出相位差信号作为再生信号。

34. 发明授权

US07471491B2 Magnetic sensor having a frequency filter coupled to an output of a magnetoresistance element 有权
标题翻译：磁传感器具有耦合到磁阻元件的输出的频率滤波器
公开(公告)号：US07471491B2
公开(公告)日：2008-12-30
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： G11B5/39
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。

35. 发明申请

US20060220162A1 Spin tunnel transistor 有权
标题翻译：旋转隧道晶体管
公开(公告)号：US20060220162A1
公开(公告)日：2006-10-05
申请号：US11446245
申请日：2006-06-05
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： H01L29/82
CPC分类号： H01L29/66984 , H01L43/08
摘要： Some spin tunnel transistors with a larger current transmittance and a higher MR ratio are described. One of the spin tunnel transistor comprises a collector; an emitter; abase formed between the collector and the emitter, including a first ferromagnetic metal layer variable in its magnetization under an external magnetic field; a barrier layer formed between the first ferromagnetic metal layer and one of the collector and the emitter, the other of the collector and the emitter including a semiconductor crystal layer; and a transition metal silicide crystal layer between the semiconductor crystal layer and the base. The transition metal silicide crystal layer may be replaced with a palladium layer, a transition metal nitride layer, or a transition metal carbide layer.
摘要翻译：描述了具有较大电流透射率和较高MR比的一些自旋隧道晶体管。一个自旋隧道晶体管包括集电极; 发射器在集电极和发射极之间形成，包括在外部磁场下其磁化可变的第一强磁性金属层; 形成在所述第一强磁性金属层与所述集电极和发射极中的一个之间的阻挡层，所述集电极和所述发射极中的另一个包括半导体晶体层; 以及在半导体晶体层和基底之间的过渡金属硅化物晶体层。过渡金属硅化物晶体层可以用钯层，过渡金属氮化物层或过渡金属碳化物层代替。

36. 发明授权

US08630070B2 Magnetic head 有权
标题翻译：磁头
公开(公告)号：US08630070B2
公开(公告)日：2014-01-14
申请号：US13207802
申请日：2011-08-11
申请人： Rie Sato , Koichi Mizushima
发明人： Rie Sato , Koichi Mizushima
IPC分类号： G11B5/33
CPC分类号： G11B5/3903 , G01R33/098 , G11B2005/0024 , H01F10/3254 , H01F10/329
摘要： According to one embodiment, there is provided a magnetic head for a three-dimensional magnetic recording/reproducing apparatus, the head executing reading from or writing to a recording medium, utilizing a magnetic resonance, the medium including stacked layers formed of magnetic substances having different resonance frequencies, the head comprising a spin torque oscillation unit and auxiliary magnetic poles. The unit is operable to simultaneously oscillate at a plurality of frequencies to cause the magnetic resonance, when reading or writing. The magnetic poles assist the unit, when reading or writing. Further, according to another embodiment, there is provided a recording magnetic head using a high-frequency assist method and comprising a microwave magnetic field applying unit and a recording magnetic pole. The unit executes writing to a recording medium, and is formed of a plurality of spin torque oscillation elements having phases thereof synchronized. The magnetic pole assists the writing.
摘要翻译：根据一个实施例，提供了一种用于三维磁记录/再现装置的磁头，头部利用磁共振来执行从记录介质的读取或向记录介质写入，该介质包括由具有不同的磁性物质形成的层叠层谐振频率，头部包括自旋扭矩振荡单元和辅助磁极。该单元可操作以在读取或写入时以多个频率同时振荡以引起磁共振。当阅读或写入时，磁极帮助单元。此外，根据另一实施例，提供了一种使用高频辅助方法并包括微波磁场施加单元和记录磁极的记录磁头。该单元对记录介质执行写入，并且由其相位同步的多个自旋转矩振荡元件形成。磁极帮助写作。

37. 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。

38. 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。

39. 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。

40. 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。

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