专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2013105517A High-frequency magnetic field generating element, magnetic head, magnetic head assembly and magnetic recording medium 有权
标题翻译：高频磁场发生元件，磁头，磁头组件和磁记录介质
公开(公告)号：JP2013105517A
公开(公告)日：2013-05-30
申请号：JP2011251144
申请日：2011-11-16
申请人： Toshiba Corp , 株式会社東芝
发明人： SHUTO HIROFUMI , YO TO , NAGASAWA TSURUMI , KUDO KIWAMU , SATO TOSHIE , MIZUSHIMA KOICHI
IPC分类号： G11B5/31 , G11B5/02 , H01L29/82 , H01L43/08
CPC分类号： G11B5/187 , G11B5/3146 , G11B2005/0024 , H01F7/00 , H01F10/3263 , H01F10/3286 , H01F10/329 , H01L43/08
摘要： PROBLEM TO BE SOLVED: To provide a high-frequency magnetic field generating element, a magnetic head, a magnetic head assembly and a magnetic recording medium for improving the recording density.SOLUTION: The high-frequency magnetic field generating element according to an embodiment comprises a first fixed layer, a first free layer, and a second free layer. The first fixed layer has a fixed direction of magnetization, which includes a component parallel to the first direction. The first free layer is laminated with the first fixed layer. The first free layer has a variable direction of magnetization, which includes a component perpendicular to the first direction. The second free layer is laminated with the first fixed layer. The second free layer has a variable direction of magnetization, which includes a component perpendicular to the first direction. The first fixed layer is provided between the first free layer and the second free layer. Magnetization of the first free layer and magnetization of the second free layer are oscillated by the current which flows into the first free layer, the second free layer, and the first fixed layer. The rotative direction of the magnetization in the oscillation of the first free layer is opposite to the rotative direction of the magnetization in the oscillation of the second free layer.
摘要翻译：要解决的问题：提供一种用于提高记录密度的高频磁场产生元件，磁头，磁头组件和磁记录介质。解决方案：根据实施例的高频磁场产生元件包括第一固定层，第一自由层和第二自由层。第一固定层具有固定的磁化方向，其包括与第一方向平行的部件。第一自由层与第一固定层层叠。第一自由层具有可变的磁化方向，其包括垂直于第一方向的分量。第二自由层与第一固定层层叠。第二自由层具有可变的磁化方向，其包括垂直于第一方向的分量。第一固定层设置在第一自由层和第二自由层之间。第一自由层的磁化和第二自由层的磁化由流入第一自由层，第二自由层和第一固定层的电流振荡。第一自由层的振荡中的磁化的旋转方向与第二自由层的振荡中的磁化的旋转方向相反。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2013069755A Spin torque oscillator 有权
标题翻译：旋转扭矩振荡器
公开(公告)号：JP2013069755A
公开(公告)日：2013-04-18
申请号：JP2011205780
申请日：2011-09-21
申请人： Toshiba Corp , 株式会社東芝
发明人： YO TO , KUDO KIWAMU , NAGASAWA TSURUMI , SHUTO HIROFUMI , SATO TOSHIE , MIZUSHIMA KOICHI
IPC分类号： H01L29/82 , G11B5/02 , G11B5/31
CPC分类号： H03B15/006 , G11B5/3143 , H01F7/0278
摘要： PROBLEM TO BE SOLVED: To stabilize oscillation of a spin torque oscillator.SOLUTION: A magnetic recording medium according to the present embodiment comprises: a nonmagnetic part; one or more of first magnetic parts; and a second magnetic part. The nonmagnetic part is formed of a nonmagnetic body. The one or more of the first magnetic parts are connected to the nonmagnetic part, and generates a pure spin current indicating an electron spin current without an accompanying electric current. The second magnetic part is connected to the nonmagnetic part so that a distance between the first magnetic part and the second magnetic part is equal to or less than a spin diffusion length indicating a distance in which polarization of the electron spin is maintained at the nonmagnetic part, and is oscillated by the pure spin current.
摘要翻译：要解决的问题：稳定自旋扭矩振荡器的振荡。解决方案：根据本实施例的磁记录介质包括：非磁性部分; 一个或多个第一磁性部件; 和第二磁性部件。非磁性部分由非磁性体形成。第一磁性部件中的一个或多个连接到非磁性部分，并且产生表示电子自旋电流而没有伴随电流的纯自旋电流。第二磁性部分连接到非磁性部分，使得第一磁性部分和第二磁性部分之间的距离等于或小于自旋扩散长度，其表示电子自旋极化保持在非磁性部分的距离，并通过纯自旋电流振荡。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2013062002A Spin torque oscillating element reproducing head and magnetic recording and reproducing device 有权
标题翻译：旋转扭矩振动元件再现头和磁记录和再现装置
公开(公告)号：JP2013062002A
公开(公告)日：2013-04-04
申请号：JP2011198321
申请日：2011-09-12
申请人： Toshiba Corp , 株式会社東芝
发明人： KUDO KIWAMU , NAGASAWA TSURUMI , MIZUSHIMA KOICHI , SATO TOSHIE , YO TO , SHUTO HIROFUMI
IPC分类号： G11B5/39 , G11B5/02 , H01L29/82 , H01L43/08
CPC分类号： G11B5/3903 , G01R33/098 , G01R33/1284 , G11B5/3912 , G11B5/3929 , G11B2005/0002 , H01F10/325 , H01F10/3254 , H01F10/329 , H01F41/325 , Y10T428/1171
摘要： PROBLEM TO BE SOLVED: To reduce interference noise between bits in a reproduced signal.SOLUTION: A spin torque oscillating element reproducing head of one embodiment is provided with a spin torque oscillating element and a pair of shielding sections. The spin torque oscillating element has a first opposing surface that faces a magnetic recording medium. The spin torque oscillating element is disposed between the pair of shielding sections. The pair of shielding sections individually has second opposing surfaces that face the magnetic recording medium. A distance between each second opposing surface and the magnetic recording medium is less than a distance between the first opposing surface and the magnetic recording medium.
摘要翻译：要解决的问题：为了减少再现信号中的位之间的干扰噪声。解决方案：一个实施例的自旋扭矩振荡元件再现头设置有自旋扭矩振荡元件和一对屏蔽部分。旋转扭矩振荡元件具有面向磁记录介质的第一相对表面。旋转扭矩振荡元件设置在该对屏蔽部之间。该对屏蔽部分分别具有面向磁记录介质的第二相对表面。每个第二相对表面和磁记录介质之间的距离小于第一相对表面和磁记录介质之间的距离。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2009194070A Magnetic oscillator, magnetic head including the magnetic oscillator, and magnetic recording and reproducing apparatus 有权
标题翻译：磁振荡器，磁头包括磁振荡器，磁记录和再现装置
公开(公告)号：JP2009194070A
公开(公告)日：2009-08-27
申请号：JP2008031789
申请日：2008-02-13
申请人： Toshiba Corp , 株式会社東芝
发明人： KUDO KIWAMU , NAGASAWA TSURUMI , MIZUSHIMA KOICHI , SATO TOSHIE
IPC分类号： H01L43/08 , G11B5/35 , H03B15/00
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： PROBLEM TO BE SOLVED: To provide a magnetic oscillator that has a high Q value and a high output. SOLUTION: The magnetic oscillator includes: an oscillating field-generating unit 1 configured to generate an oscillating field; and a magnetoresistive element 2 including a magnetoresistive film including a first magnetic pinned layer 10 of which the magnetization direction is pinned, a first magnetic free layer 8 of which the magnetization direction oscillates with the oscillating field, and a first spacer layer 9 interposed between the first magnetic pinned layer and the first magnetic free layer. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有高Q值和高输出的磁性振荡器。解决方案：磁振荡器包括：振荡场产生单元1，被配置为产生振荡场; 以及包括磁阻膜的磁阻元件2，该磁阻膜包括其磁化方向被钉扎的第一磁性被钉扎层10，磁化方向与振荡场一起振荡的第一磁性自由层8和介于其间的第一间隔层9 第一磁性固定层和第一磁性自由层。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2007142746A Magnetic oscillation element, magnetic sensor, and magnetic regeneration apparatus 有权
标题翻译：磁振动元件，磁传感器和磁力再生装置
公开(公告)号：JP2007142746A
公开(公告)日：2007-06-07
申请号：JP2005332940
申请日：2005-11-17
申请人： Toshiba Corp , 株式会社東芝
发明人： KUDO KIWAMU , SATO TOSHIE , MIZUSHIMA KOICHI
IPC分类号： H03B15/00 , G01R33/02 , G11B5/39 , H01L29/82 , H01L43/08
CPC分类号： H03B15/006
摘要： PROBLEM TO BE SOLVED: To provide a magnetic oscillation element functioning as a microwave oscillation source, capable of avoiding the degradation of an S/N ratio caused by thermal fluctuation, by detecting a signal magnetic field utilizing a non-balanced static condition of magnetization of current induction.
SOLUTION: The magnetic oscillation element includes: a first magnetic resonance layer including a first ferromagnetic layer, having a first magnetic resonant frequency f
1 ; a second magnetic resonance layer including a second ferromagnetic layer, having a second magnetic resonant frequency f
2 not smaller than f
1 ; a non-magnetic intermediate layer formed between the above first and the second magnetic resonance layers; and a means for passing through a current perpendicularly to the film surfaces of the first and the second magnetic resonance layers, in the direction from the second magnetic resonance layer to the first magnetic resonance layer. The difference (f
2 -f
1 ) between the second and the first magnetic resonant frequencies is smaller than a half of the magnetic resonance line width that the first magnetic resonance layer has.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供用作微波振荡源的磁振荡元件，通过利用非平衡静态条件检测信号磁场，能够避免由热波动引起的S / N比的劣化的电流感应磁化。解决方案：磁振荡元件包括：第一磁共振层，包括具有第一磁共振频率f 1 的第一铁磁层; 具有不小于f SB 1的第二磁共振频率f 2 的第二铁磁层的第二磁共振层; 形成在上述第一和第二磁共振层之间的非磁性中间层; 以及在从第二磁共振层到第一磁共振层的方向上垂直于第一和第二磁共振层的膜表面通过电流的装置。第二和第一磁共振频率之间的差异（f 2 -f 1 ）小于第一磁共振层具有的磁共振线宽度的一半。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006203791A Receiver using magnetic oscillation element 有权
标题翻译：接收器使用磁振荡元件
公开(公告)号：JP2006203791A
公开(公告)日：2006-08-03
申请号：JP2005015662
申请日：2005-01-24
申请人： Toshiba Corp , 株式会社東芝
发明人： SATO TOSHIE
IPC分类号： H04B1/18
CPC分类号： H04B1/18
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive high frequency receiver for attaining an excellent error rate.
SOLUTION: The receiver has a preamplifier (13) which amplifies an input signal, an equalizing amplification part (15) which performs equalizing amplification processing to an amplification signal of the preamplifier, an identification reproduction part (18) which reproduces the input signal based on an output signal of the equalizing amplification part and a magnetic oscillation element (14) which is inserted into a prestage of the preamplifier and improves SN ratio of a minute signal.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种廉价的高频接收机，以获得出色的误码率。解决方案：接收机具有放大输入信号的前置放大器（13），对前置放大器的放大信号进行均衡放大处理的均衡放大部分（15），再现输入信号的识别再现部分（18）基于均衡放大部分的输出信号的信号和插入到前置放大器的前置放大器中的磁振荡元件（14），并提高微小信号的SN比。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005285242A Magnetic recording head and magnetic storage device 有权
标题翻译：磁记录头和磁储存装置
公开(公告)号：JP2005285242A
公开(公告)日：2005-10-13
申请号：JP2004099385
申请日：2004-03-30
申请人： Toshiba Corp , 株式会社東芝
发明人： SATO TOSHIE , MIZUSHIMA KOICHI
IPC分类号： G11B5/31 , G11B5/02 , G11B11/10 , H01L21/8246 , H01L27/105 , H01L29/82 , H01L43/08 , H01L43/10
摘要： PROBLEM TO BE SOLVED: To provide a novel magnetic recording head capable of realizing energy irradiation by a heat assisting method and contributing to the reduction of the write current magnetic field of an MRAM, and a magnetic storage device.
SOLUTION: This magnetic recording head is provided with a recording magnetic pole 5, a magnetization free layer 31 formed near the recording magnetic pole 5 and having magnetization fluctuated, a nonmagnetic layer 35 stacked on the magnetization free layer, a magnetization fixed layer 35 having magnetization fixed and stacked on the nonmagnetic layer 35, a pair of electrodes 391 and 393 capable of energization in a direction perpendicular to the film surface of the magnetization free layer 31, the nonmagnetic layer 35 and the magnetization fixed layer 35, and a spin wave oscillator for exciting a spin wave in the magnetization free layer 31 by a spin uneven pole current injected thereto from the magnetization fixed layer 35 by energization.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够通过热辅助方法实现能量照射并有助于降低MRAM的写入电流磁场和磁存储装置的新型磁记录头。解决方案：该磁记录头设置有记录磁极5，形成在记录磁极5附近并具有磁化波动的磁化自由层31，层叠在磁化自由层上的非磁性层35，磁化固定层 35，具有固定并层叠在非磁性层35上的磁化能力，能够在与磁化自由层31，非磁性层35和磁化固定层35的膜表面垂直的方向上通电的一对电极391和393，以及自旋波振荡器，用于通过激励从磁化固定层35注入的自旋不均匀极电流来激励自由磁化层31中的自旋波。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JPH0680419A PRODUCTION OF OXIDE SUPERCONDUCTOR THIN FILM AND SUPERCONDUCTING TUNNEL JUNCTION AND SUPERCONDUCTING ELEMENT 失效
公开(公告)号：JPH0680419A
公开(公告)日：1994-03-22
申请号：JP22857592
申请日：1992-08-27
申请人： TOSHIBA CORP
发明人： TERAJIMA YOSHIAKI , SATO TOSHIE , MIURA TADAO
IPC分类号： C01G1/00 , C01G3/00 , C30B29/22 , H01B12/06 , H01B13/00 , H01L39/24
摘要： PURPOSE:To provide a method for producing an oxide superconductor thin film having an infinite layer structure of good quality without using a high- pressure process and a method for producing a superconducting tunnel junction of good quality in a simple production process. CONSTITUTION:Atoms or molecules in an amount of a nearly one atomic layer expressed by the formula A1-xRExOz [A denotes alkaline earth element; RE denotes rare earth element; (x) denote 0 =500, 0.1 =0.005T-2.9 when the substrate temperature in forming the film is T ( deg.C) and the oxygen partial pressure in an atmospheric gas in forming the film is P (Pa). Thereby, the objective oxide superconductor layer having an infinite layer structure is formed. A nonsuperconductor layer composed of the elements of the same construction is formed according to a method for forming the thin film satisfying the conditions of T>=500, P

9. 发明专利

JPH03109292A VAPOR GROWTH METHOD FOR OXIDE THIN FILM 失效
公开(公告)号：JPH03109292A
公开(公告)日：1991-05-09
申请号：JP24075289
申请日：1989-09-19
申请人： TOSHIBA CORP
发明人： NAKANISHI TAKATOSHI , EGUCHI KAZUHIRO , SATO TOSHIE
IPC分类号： C30B25/18 , C23C16/40 , H01L21/205
摘要： PURPOSE:To improve the purity of a single crystal by installing the substrate crystal constituted of a specific surface in a reaction furnace and introducing org. metal vapor and O2 or an oxidizing agent which can supply O2 into the furnace and thereby causing pyrolysis. CONSTITUTION:The substrate crystal 20 which is cleaned by chemical etching and is constituted of the face that the low-index face is inclined by 2 to 5 deg. toward a (100) direction from (011) face or (110) face is imposed on a sample imposing base 2. Gaseous Ar is supplied to the reaction furnace 1 to substitute the in-furnace atmosphere; thereafter, the gaseous O2 is supplied from a gaseous O2 cylinder 16 into the reaction furnace 1 where the substrate crystal 20 is heated to a prescribed temp. by an electric furnace 3. The gaseous Ar is passed to containers 10, 11, 12 for org. metal raw materials after stopping of the supply of the gaseous O2 and the org. metal vapors are supplied into the reaction furnace 1 by operating 3-way valves 13, 14, 15. The supply of the vapors to the reaction furnace 1 is stopped after the prescribed time and the gaseous O2 is supplied into the reaction furnace 1 upon lapse of some time. This stage is repeated several tens times, by which the thin film of the oxide superconductor consisting of the single crystal is obtd. at a prescribed thickness over the entire surface.

10. 发明专利

JP2015008026A 磁気記録再生装置审中-公开
标题翻译：磁记录和再现设备
公开(公告)号：JP2015008026A
公开(公告)日：2015-01-15
申请号：JP2013132877
申请日：2013-06-25
申请人：株式会社東芝 , Toshiba Corp
发明人： KUDO KIWAMU , NAGASAWA TSURUMI , SHUTO HIROFUMI , YO TO , MIZUSHIMA KOICHI , SATO TOSHIE
IPC分类号： G11B5/39 , G11B5/02
CPC分类号： G11B5/35 , G11B5/02 , G11B5/10 , G11B2005/0005
摘要：【課題】再生信号のSN比を向上させることができる磁気記録再生装置を提供する。【解決手段】一実施形態に係る磁気記録再生装置は、記録媒体及びスピントルク発振素子再生ヘッドを備える。記録媒体では、複数の同心円状トラックが形成されている。スピントルク発振素子再生ヘッドは、前記記録媒体から情報を再生するものであって、第1のクロストラック方向幅を有する発振層と、第2のクロストラック方向幅を有するポーラライザ層と、前記発振層及び前記ポーラライザ層間に配置されたスペーサ層と、を含むスピントルク発振素子を備える。前記第1のクロストラック方向幅は前記第2のクロストラック方向幅の2倍より大きく、前記第2のクロストラック方向幅は隣接トラック間距離より小さい。【選択図】図2
摘要翻译：要解决的问题：提供能够改善再现信号的SN比的磁记录和再现装置。解决方案：根据一个实施例的磁记录和再现装置包括：记录介质; 和自旋扭矩振荡元件再现头。在记录介质上形成多个同心轨迹。自旋转矩振荡元件再现头再现来自记录介质的信息，并且包括一个自旋扭矩振荡元件，其包括具有第一交叉轨道方向宽度的振荡层; 具有第二交叉轨道方向宽度的偏振层; 以及布置在振荡层和偏振层之间的间隔层。第一交叉轨道方向宽度大于第二交叉轨道方向宽度的两倍，并且第二交叉轨道方向宽度小于两个相邻轨道之间的距离。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式