公开(公告)号：US4596735A

公开(公告)日：1986-06-24

申请号：US603894

申请日：1984-04-25

申请人： Kiyoshi Noguchi ,  Koji Kobayashi ,  Suguru Takayama

发明人： Kiyoshi Noguchi ,  Koji Kobayashi ,  Suguru Takayama

IPC分类号： G11B5/64 ,  G11B5/66 ,  G11B5/72 ,  G11B5/73 ,  G11B5/85

CPC分类号： G11B5/73 ,  G11B5/66 ,  Y10S428/90 ,  Y10T428/24967 ,  Y10T428/24975 ,  Y10T428/265

摘要： In a magnetic recording medium comprising a non-magnetic substrate and a magnetic layer of Co or Co-Ni in the form of a continuous thin film on the substrate, the magnetic layer has oxygen-rich sub-layers at its surfaces adjacent to and remote from the substrate. The oxygen-rich sub-layers are produced by injecting energy particles containing oxygen to the surface of the substrate during the initial and final stages of formation of the magnetic layer.

摘要翻译： 在包括非磁性基板和在基板上呈连续薄膜形式的Co或Co-Ni的磁性层的磁记录介质中，磁性层在其邻近和远离的表面上具有富氧子层 从底物。 在形成磁性层的初始阶段和最后阶段期间，通过将含有氧的能量粒子注入到衬底的表面来产生富氧子层。

公开(公告)号：US4540600A

公开(公告)日：1985-09-10

申请号：US588890

申请日：1984-03-12

申请人： Koji Kobayashi ,  Kiyoshi Noguchi ,  Suguru Takayama

发明人： Koji Kobayashi ,  Kiyoshi Noguchi ,  Suguru Takayama

IPC分类号： C23C14/22 ,  G11B5/64 ,  G11B5/65 ,  G11B5/72 ,  G11B5/73 ,  G11B5/85 ,  H01F41/16

CPC分类号： C23C14/226 ,  G11B5/64 ,  G11B5/85 ,  H01F41/16 ,  Y10S205/922

摘要： A process for producing a magnetic recording medium which comprises forming on a non-magnetic substrate a magnetic thin layer composed of columnar crystal particles comprising Co, or Co and Ni and/or Cr by vapor/depositing the metal atoms at an angle of incidence of at least 20.degree. relative to the normal line of the principal plane of the substrate, and then forcibly oxidizing the magnetic thin layer by electrochemical treatment to form an oxide layer on the surface of the columnar crystal particles of the magnetic thin layer, and thereby to form a magnetic layer.

摘要翻译： 一种磁记录介质的制造方法，其特征在于，在非磁性基板上形成由包含Co，或Co，Ni和/或Cr的柱状结晶粒子构成的磁性薄膜，所述磁性薄膜由蒸气/沉积金属原子以入射角 相对于基板的主面的法线为至少20°，然后通过电化学处理强制氧化磁性薄层，以在磁性薄层的柱状结晶粒子的表面上形成氧化物层，从而 形成磁性层。

公开(公告)号：US20110242696A1

公开(公告)日：2011-10-06

申请号：US12750870

申请日：2010-03-31

申请人： Hiroshi IKEDA ,  Isamu Sato ,  Kiyoshi Noguchi ,  Tsutomu Aoyama ,  Takuya Adachi

发明人： Hiroshi IKEDA ,  Isamu Sato ,  Kiyoshi Noguchi ,  Tsutomu Aoyama ,  Takuya Adachi

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  G11B5/1278 ,  G11B2005/0024

摘要： A gap between a main pole and auxiliary pole composing a thin film magnetic head having a microwave assisted function of the present invention is filled with a nonmagnetic dielectric layer to embed a microwave radiator. The nonmagnetic dielectric layer has an inclined surface at a end on a side of an opposing medium surface by which the microwave radiated from the microwave radiator to be bent toward the main pole, whereby the microwave magnetic field generated from the microwave generator can be gathered immediately below the main pole, further improving the microwave assisted effect.

摘要翻译： 构成本发明的具有微波辅助功能的薄膜磁头的主极和辅助极之间的间隙填充有非磁性介电层以嵌入微波辐射器。 非磁性介电层在相对的介质表面的一侧的端部具有倾斜表面，微波从微波辐射器辐射到微波辐射器，从而微波发生器产生的微波磁场可以立即收集 主杆下方进一步提高微波辅助效果。

公开(公告)号：US20100073804A1

公开(公告)日：2010-03-25

申请号：US12550662

申请日：2009-08-31

申请人： Hiroshi Ikeda ,  Kiyoshi Noguchi ,  Saori Kajihara ,  Isamu Sato

发明人： Hiroshi Ikeda ,  Kiyoshi Noguchi ,  Saori Kajihara ,  Isamu Sato

IPC分类号： G11B5/02

CPC分类号： G11B5/1278 ,  G11B2005/001 ,  G11B2005/0024

摘要： A thin-film magnetic head having microwave magnetic exciting function includes a write magnetic field production means for producing, in response to a write signal, a write magnetic field to be applied into a magnetic recording medium, and at least line conductor of a microwave radiator of a plane-structure type, formed independent from the write magnetic field production means, for radiating, by feeding there through a microwave excitation current, a microwave band resonance magnetic field with a frequency equal to or in a range near a ferromagnetic resonance frequency FR of the magnetic recording medium.

摘要翻译： 具有微波磁激励功能的薄膜磁头包括写入磁场产生装置，用于响应于写入信号产生要施加到磁记录介质中的写入磁场，以及至少微波辐射器的线路导体 的平面结构型，与写入磁场产生装置无关，用于通过微波激励电流向其馈送频率等于或接近铁磁共振频率FR的频率的微波频带共振磁场 的磁记录介质。

公开(公告)号：US06773515B2

公开(公告)日：2004-08-10

申请号：US10050644

申请日：2002-01-16

申请人： Min Li ,  Simon H. Liao ,  Masashi Sano ,  Kiyoshi Noguchi ,  Kochan Ju ,  Cheng T. Horng

发明人： Min Li ,  Simon H. Liao ,  Masashi Sano ,  Kiyoshi Noguchi ,  Kochan Ju ,  Cheng T. Horng

IPC分类号： C23C800

CPC分类号： C22C38/10 ,  B32B15/01 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  C22C38/12 ,  G01R33/093 ,  G11B5/3163 ,  G11B5/3903 ,  H01F10/3259 ,  H01F10/3272 ,  H01F41/302 ,  H01L43/08 ,  H01L43/12 ,  Y10T29/49034 ,  Y10T29/49044 ,  Y10T29/49046

摘要： A method for forming an NiCr seed layer based bottom spin valve sensor element having a synthetic antiferromagnet pinned (SyAP) layer and a capping layer comprising either a single specularly reflecting nano-oxide layer (NOL) or a bi-layer comprising a non-metallic layer and a specularly reflecting nano-oxide layer and the sensor element so formed. The method of producing these sensor elements provides elements having higher GMR ratios and lower resistances than elements of the prior art.

摘要翻译： 一种用于形成具有合成反铁磁钉扎（SyAP）层的NiCr种子层底部自旋阀传感器元件的方法和包括单个镜面反射纳米氧化物层（NOL）或包含非金属的双层的双层的覆盖层 层和镜面反射纳米氧化物层和如此形成的传感器元件。 制造这些传感器元件的方法提供了具有比现有技术的元件更高的GMR比和较低电阻的元件。

公开(公告)号：US06581272B1

公开(公告)日：2003-06-24

申请号：US10037812

申请日：2002-01-04

申请人： Min Li ,  Simon H. Liao ,  Masashi Sano ,  Kiyoshi Noguchi ,  Kochan Ju ,  Cheng T. Horng

发明人： Min Li ,  Simon H. Liao ,  Masashi Sano ,  Kiyoshi Noguchi ,  Kochan Ju ,  Cheng T. Horng

IPC分类号： G11B5127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3903 ,  Y10T29/49034 ,  Y10T29/49044 ,  Y10T29/49046

摘要： A method for forming a bottom spin valve sensor having a synthetic antiferromagnetic pinned (SyAP) layer, antiferromagnetically coupled to a pinning layer, in which one of the layers of the SyAP is formed as a three layer lamination that contains a specularly reflecting oxide layer of FeTaO. The sensor formed according to this method has an extremely high GMR ratio and exhibits good pinning strength.

摘要翻译： 一种用于形成底部自旋阀传感器的方法，该底部自旋阀传感器具有反结合磁耦合到钉扎层的合成反铁磁钉扎（SyAP）层，其中SyAP的一个层形成为三层层压，其包含镜面反射氧化物层 FeTaO。 根据该方法形成的传感器具有非常高的GMR比，并且具有良好的钉扎强度。

公开(公告)号：US5862022A

公开(公告)日：1999-01-19

申请号：US933347

申请日：1997-09-19

申请人： Kiyoshi Noguchi ,  Taro Oike ,  Satoru Araki ,  Manabu Ohta ,  Masashi Sano

发明人： Kiyoshi Noguchi ,  Taro Oike ,  Satoru Araki ,  Manabu Ohta ,  Masashi Sano

IPC分类号： G11B5/39 ,  H01L43/08 ,  G11C11/00 ,  H01L41/12

CPC分类号： G11B5/3967 ,  H01L43/08

摘要： This invention is directed to a ferromagnetic tunnel junction, an MR element and a magnetic head. A ferromagnetic tunnel junction is constituted by sequentially laminating a first ferromagnetic film, an insulating film and a second ferromagnetic film. These are laminated on an appropriate insulating substrate. The present invention is characterized in that the barrier potential of the insulating film is set within a range of 0.5 to 3 eV. A ferromagnetic tunnel junction with which a high MR ratio can be achieved with good reproduction characteristics is provided.

摘要翻译： 本发明涉及铁磁隧道结，MR元件和磁头。 铁磁隧道结由顺序层叠第一铁磁膜，绝缘膜和第二铁磁膜构成。 这些层压在适当的绝缘基板上。 本发明的特征在于，绝缘膜的阻挡电位设定在0.5〜3eV的范围内。 提供了具有良好再生特性可实现高MR比的铁磁隧道结。

公开(公告)号：US4758471A

公开(公告)日：1988-07-19

申请号：US877866

申请日：1986-06-24

申请人： Hiroyuki Arioka ,  Koji Kobayashi ,  Kiyoshi Noguchi

发明人： Hiroyuki Arioka ,  Koji Kobayashi ,  Kiyoshi Noguchi

IPC分类号： G11B5/66 ,  G11B5/64 ,  G11B5/72 ,  G11B5/725 ,  G11B5/73 ,  G11B5/702

CPC分类号： G11B5/725 ,  G11B5/722 ,  Y10S428/90 ,  Y10T428/265 ,  Y10T428/31935

摘要： A magnetic recording medium exhibiting improved running stability and durability is obtained by covering a magnetic layer of ferromagnetic metal thin film with a topcoat layer comprising at least one fatty acid ester having a melting point of from -20.degree. C. to 30.degree. C. and at least one compound containing a group having a radiation sensitive unsaturated double bond and a group having a fluorine substituted alkyl group.

摘要翻译： 通过用包含至少一种熔点为-20℃至30℃的脂肪酸酯的顶涂层覆盖强磁性金属薄膜的磁性层，获得表现出改善的运行稳定性和耐久性的磁记录介质，以及 至少一种含有具有辐射敏感性不饱和双键的基团和具有氟取代的烷基的基团的化合物。

公开(公告)号：US4548871A

公开(公告)日：1985-10-22

申请号：US562002

申请日：1983-12-16

申请人： Kouji Kobayashi ,  Kiyoshi Noguchi ,  Suguru Takayama

发明人： Kouji Kobayashi ,  Kiyoshi Noguchi ,  Suguru Takayama

IPC分类号： C23C14/22 ,  G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/716

CPC分类号： C23C14/226 ,  G11B5/64 ,  G11B5/66 ,  G11B5/716 ,  Y10S428/928 ,  Y10T428/1234 ,  Y10T428/12465 ,  Y10T428/12646 ,  Y10T428/1266 ,  Y10T428/12861 ,  Y10T428/12931

摘要： A magnetic recording medium which comprises a magnetic layer formed on a substrate and comprising Co, or Co and one to three elements selected from the group consisting of Ni, Cr and O, said magnetic layer comprising sequentially from the substrate side, a first portion composed of crystal particles which are not inclined relative to the normal line of the principal plane of the substrate, a second portion composed of columnar crystal particles which are inclined relative to the normal line of the principal plane of the substrate, and a third portion composed of crystal particles which are not inclined relative to the normal line of the principal plane of the substrate.

摘要翻译： 一种磁记录介质，包括形成在基底上的包含Co或Co的磁性层和从Ni，Cr和O组成的组中选择的一种至三种元素的磁性层，所述磁性层从衬底侧依次包括第一部分 相对于基板的主面的法线不倾斜的晶体粒子，由相对于基板的主面的法线倾斜的柱状结晶粒子构成的第二部分，以及由 不相对于基板的主面的法线倾斜的结晶粒子。

公开(公告)号：US20120230167A1

公开(公告)日：2012-09-13

申请号：US13045603

申请日：2011-03-11

申请人： Tsutomu AOYAMA ,  Tetsuya Roppongi ,  Yoshikazu Soeno ,  Kiyoshi Noguchi ,  Isamu Sato

发明人： Tsutomu AOYAMA ,  Tetsuya Roppongi ,  Yoshikazu Soeno ,  Kiyoshi Noguchi ,  Isamu Sato

IPC分类号： G11B13/04

CPC分类号： G11B5/314 ,  G11B5/1278 ,  G11B2005/0024

摘要： A microwave assisted magnetic head of the present invention includes: at least two or more auxiliary coils that are arranged in a periphery of a writing main pole; and microwave current supply means that applies microwave currents to the at least two or more auxiliary coils. The at least two or more auxiliary coils respectively include linear body parts linearly arranged on an ABS side, two of the linear body parts of the at least two or more auxiliary coils are arranged in a substantially orthogonal positional relationship, and the microwave current supply means is configured such that the microwave current supply means changes phase differences of the microwave currents applied respectively to the at least two or more auxiliary coils. Therefore, the microwave current can be easily controlled, and thus, a circularly polarized magnetic field with high magnetization inversion efficiency can be generated as an assistance magnetic field.

摘要翻译： 本发明的微波辅助磁头包括：布置在书写主极的周边中的至少两个或更多个辅助线圈; 以及微波电流供给装置，其向所述至少两个或更多个辅助线圈施加微波电流。 所述至少两个以上的辅助线圈分别包括直线状配置在ABS侧的线状体部，所述至少两个以上的辅助线圈的线状体部的两个以大致正交的位置关系配置，微波电流供给装置 被配置为使得微波电流提供装置改变分别施加到至少两个或更多个辅助线圈的微波电流的相位差。 因此，可以容易地控制微波电流，因此可以产生具有高磁化反转效率的圆极化磁场作为辅助磁场。