公开(公告)号：US20050003079A1

公开(公告)日：2005-01-06

申请号：US10797926

申请日：2004-03-10

申请人： Katsuhiko Wakayama ,  Yasuo Hashimoto ,  Akira Kakinuma ,  Tsutomu Chou ,  Yasushi Iijima ,  Masanori Kaya ,  Kazunori Tasaki

发明人： Katsuhiko Wakayama ,  Yasuo Hashimoto ,  Akira Kakinuma ,  Tsutomu Chou ,  Yasushi Iijima ,  Masanori Kaya ,  Kazunori Tasaki

IPC分类号： B32B27/36 ,  B32B37/20 ,  C23C26/00 ,  H01F1/18 ,  H01F41/02 ,  H01F1/00

CPC分类号： B32B15/09 ,  B32B7/12 ,  B32B27/36 ,  B32B37/203 ,  B32B38/0036 ,  B32B38/1875 ,  B32B2250/42 ,  B32B2307/20 ,  B32B2307/202 ,  B32B2307/206 ,  B32B2309/02 ,  B32B2309/105 ,  B32B2311/00 ,  B32B2367/00 ,  C21D2251/02 ,  C23C26/00 ,  H01F1/18 ,  H01F41/0233

摘要： By laminating soft magnetic sheets 1, 11, a laminated soft magnetic member 5 in which insulating layers and soft magnetic metal layers are alternately laminated is produced. In this case, prior to laminating the obtained soft magnetic sheets 1, 11, or posterior to obtaining the laminated soft magnetic member 5 by laminating the soft magnetic sheets 1, 11, heat treatment is conducted under the conditions predetermined depending on the purpose of the heat treatment. During the heat treatment, pressing treatment can also be conducted concurrently. Additionally, when the heat treatment is conducted under the condition in which a tension is applied, further improvement of the magnetic properties can be expected.

摘要翻译： 通过层压软磁片1,11，制造层叠的软磁体5，绝缘层和软磁金属层交替层叠。 在这种情况下，在通过层叠软磁性片1,11层叠得到的软磁性体片11,11之前或之后层叠软磁性体5，在根据本发明的目的的预定条件下进行热处理 热处理。 在热处理中，也可以同时进行压制处理。 此外，当在施加张力的条件下进行热处理时，可以期望进一步提高磁性能。

公开(公告)号：US20050012652A1

公开(公告)日：2005-01-20

申请号：US10494738

申请日：2002-11-08

申请人： Katsuhiko Wakayama ,  Masahiro Karatsu ,  Tsutomu Chou ,  Yasuo Hashimoto

发明人： Katsuhiko Wakayama ,  Masahiro Karatsu ,  Tsutomu Chou ,  Yasuo Hashimoto

IPC分类号： H01F1/18 ,  H01F1/24 ,  H01F1/26 ,  H01F41/02 ,  H05K9/00 ,  H01Q17/00

CPC分类号： H05K9/0086 ,  H01F1/18 ,  H01F1/26 ,  H01F41/0246 ,  H05K9/0075

摘要： The object of the present invention is to provide an electromagnetic wave absorbing sheet excellent in permeability in high frequencies and to provide a method for manufacturing the same. The electromagnetic wave absorbing sheet of the present invention comprises insulating layers on the both sides of a magnetic layer. The magnetic layer is formed by densely depositing a large amount of magnetic powder such that the powder undergoes plastic deformation. Each magnetic powder is made to be a composite magnetic material formed of the soft magnetic metal phase consisting of a flaky soft magnetic metal powder and the insulating phase consisting of an insulating film formed on the surface of the soft magnetic metal phase. Additionally, another configuration can be taken in which a conductive layer is arranged on one of the insulating layers arranged on both sides of the magnetic layer, and the conductive layer is covered with an insulating layer.

摘要翻译： 本发明的目的是提供一种高频磁导率优异的电磁波吸收片，并提供其制造方法。 本发明的电磁波吸收片包括在磁性层两侧的绝缘层。 磁性层通过密集沉积大量的磁性粉末形成，使得粉末发生塑性变形。 每个磁粉被制成由软磁金属相组成的复合磁性材料，该软磁金属相是由薄片软磁金属粉末和由形成在软磁金属相表面上的绝缘膜组成的绝缘相。 此外，可以采用在布置在磁性层的两侧上的绝缘层之一上布置导电层的另一结构，并且导电层被绝缘层覆盖。

公开(公告)号：US07323214B2

公开(公告)日：2008-01-29

申请号：US10494738

申请日：2002-11-08

申请人： Katsuhiko Wakayama ,  Masahiro Karatsu ,  Tsutomu Chou ,  Yasuo Hashimoto

发明人： Katsuhiko Wakayama ,  Masahiro Karatsu ,  Tsutomu Chou ,  Yasuo Hashimoto

IPC分类号： B05D5/12

CPC分类号： H05K9/0086 ,  H01F1/18 ,  H01F1/26 ,  H01F41/0246 ,  H05K9/0075

摘要： The object of the present invention is to provide an electromagnetic wave absorbing sheet excellent in permeability in high frequencies and to provide a method for manufacturing the same.The electromagnetic wave absorbing sheet of the present invention comprises insulating layers on the both sides of a magnetic layer. The magnetic layer is formed by densely depositing a large amount of magnetic powder such that the powder undergoes plastic deformation. Each magnetic powder is made to be a composite magnetic material formed of the soft magnetic metal phase consisting of a flaky soft magnetic metal powder and the insulating phase consisting of an insulating film formed on the surface of the soft magnetic metal phase.Additionally, another configuration can be taken in which a conductive layer is arranged on one of the insulating layers arranged on both sides of the magnetic layer, and the conductive layer is covered with an insulating layer.

摘要翻译： 本发明的目的是提供一种高频磁导率优异的电磁波吸收片，并提供其制造方法。 本发明的电磁波吸收片包括在磁性层两侧的绝缘层。 磁性层通过密集沉积大量的磁性粉末形成，使得粉末发生塑性变形。 每个磁粉被制成由软磁金属相组成的复合磁性材料，该软磁金属相是由薄片软磁金属粉末和由形成在软磁金属相表面上的绝缘膜组成的绝缘相。 此外，可以采用在布置在磁性层的两侧上的绝缘层之一上布置导电层的另一结构，并且导电层被绝缘层覆盖。

公开(公告)号：US06310837B1

公开(公告)日：2001-10-30

申请号：US09170083

申请日：1998-10-13

申请人： Tsutomu Chou ,  Masao Shigeta ,  Masahiro Karatsu ,  Mari Fujii ,  Chikara Ishizaka ,  Katsumi Saito ,  Katsuhiko Wakayama ,  Shohei Mimura ,  Masahiro Ito

发明人： Tsutomu Chou ,  Masao Shigeta ,  Masahiro Karatsu ,  Mari Fujii ,  Chikara Ishizaka ,  Katsumi Saito ,  Katsuhiko Wakayama ,  Shohei Mimura ,  Masahiro Ito

IPC分类号： G11B566

CPC分类号： G06K19/06196 ,  Y10T428/2982

摘要： The invention is a magnetic recording medium which is effectively protected against forgery by the alteration of recorded data, and a method for carrying out writing and reading on this magnetic recording medium. The magnetic recording medium of the invention comprises a recording material composed of a crystalline alloy containing Fe and Al . In the recoding material, the total amount of Fe and Al is at least 90 at % and the atomic ratio Al/(Fe+Al) ranges from 0.30 to 0.45. The recording material changes from a disordered phase to an ordered phase by heating. The recording material has a saturation magnetization of at least 45 emu/g prior to heating and lowers its saturation magnetization by at least 35 emu/g upon heating. Dark regions are observable in a bright-field image of the recording material by transmission electron microscopy, the dark regions accounting for 15-60% of the recording material in areal ratio and having a maximum breadth of 10-200 nm.

摘要翻译： 本发明是通过改变记录数据有效地防止伪造的磁记录介质，以及用于在该磁记录介质上执行写和读的方法。 本发明的磁记录介质包括由含有Fe和Al的结晶合金构成的记录材料。 在记录材料中，Fe和Al的总量为90原子％以上，原子比Al /（Fe + Al）为0.30〜0.45。 记录材料通过加热从无序相变为有序相。 记录材料在加热之前具有至少45emu / g的饱和磁化强度，并且在加热时将其饱和磁化降低至少35emu / g。 通过透射电子显微镜在记录材料的明场图像中可以观察到暗区域，黑色区域占记录材料的面积比率的15-60％，最大宽度为10-200nm。

公开(公告)号：US08462593B1

公开(公告)日：2013-06-11

申请号：US13367767

申请日：2012-02-07

申请人： Eiji Komura ,  Koji Shimazawa ,  Tsutomu Chou ,  Shinji Hara ,  Kosuke Tanaka

发明人： Eiji Komura ,  Koji Shimazawa ,  Tsutomu Chou ,  Shinji Hara ,  Kosuke Tanaka

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： A magnetic head includes a dielectric waveguide to propagate propagation light; a metal waveguide facing the dielectric waveguide, coupling to the propagation light propagating through the dielectric waveguide in a surface plasmon mode, generating first surface plasmon with larger wavenumber than that of the propagation light, and propagating the first surface plasmon; a near-field light generating element facing the metal waveguide and extending to ABS, coupling to the first surface plasmon propagating on the metal waveguide in a surface plasmon mode, generating second surface plasmon with wavenumber larger than that of the first surface plasmon, propagating the second surface plasmon to an end part on the ABS side, and generating near-field light at the end part on the ABS side; and a recording magnetic pole provided in the vicinity of the near-field light generating element and having an end part positioned on the ABS.

摘要翻译： 磁头包括传播传播光的电介质波导; 面向电介质波导的金属波导，以表面等离子体模式耦合到通过电介质波导传播的传播光，产生波数比传播光波数大的第一表面等离子体，并传播第一表面等离子体; 面向金属波导并延伸到ABS的近场光产生元件，以表面等离子体模式耦合到在金属波导上传播的第一表面等离子体激元，产生波数大于第一表面等离子体波的第二表面等离子体，传播 第二表面等离子体激元到ABS侧的端部，并且在ABS侧的端部产生近场光; 以及设置在近场光产生元件附近并具有位于ABS上的端部的记录磁极。

公开(公告)号：US08437237B2

公开(公告)日：2013-05-07

申请号：US12986532

申请日：2011-01-07

申请人： Eiji Komura ,  Tsutomu Chou ,  Koji Shimazawa

发明人： Eiji Komura ,  Tsutomu Chou ,  Koji Shimazawa

IPC分类号： G11B7/00

CPC分类号： G11B5/314 ,  G01D5/34 ,  G11B5/6088 ,  G11B2005/0021

摘要： A light source unit includes a light source and a photodetector. The light source has an emission part for emitting light. The photodetector has a light receiving surface for receiving the light emitted from the emission part, and detects the light. The light source unit further includes a grating made of metal and disposed to extend along the light receiving surface. The grating includes a plurality of line-shaped portions that each extend in a direction intersecting the direction of travel of the light and that are located at positions different from each other along the direction of travel of the light.

摘要翻译： 光源单元包括光源和光电检测器。 光源具有用于发光的发射部分。 光电检测器具有用于接收从发射部分发射的光的光接收表面，并检测光。 光源单元还包括由金属制成并被设置为沿着光接收表面延伸的光栅。 光栅包括多个线状部分，每个线状部分沿着与光的行进方向交叉的方向延伸，并且位于沿着光的行进方向彼此不同的位置。

公开(公告)号：US08405935B2

公开(公告)日：2013-03-26

申请号：US12979613

申请日：2010-12-28

申请人： Tsutomu Chou ,  Yoshihiro Tsuchiya ,  Hironobu Matsuzawa ,  Hayato Koike

发明人： Tsutomu Chou ,  Yoshihiro Tsuchiya ,  Hironobu Matsuzawa ,  Hayato Koike

IPC分类号： G11B5/39

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3929 ,  G11B2005/3996 ,  Y10T428/1121

摘要： A magnetoresistive effect element (MR element) includes first and second magnetic layers of which relative angles formed by magnetization directions change in relation to an external magnetic field; and a spacer layer positioned between the first magnetic layer and the second magnetic layer. The first magnetic layer is positioned on a side closer than the second magnetic layer in regards to a substrate above which the magnetoresistive effect element is formed, and the spacer layer includes a main spacer layer made of gallium oxide as the primary component, and a first nonmagnetic layer positioned between the main spacer layer and the first magnetic layer and contains copper and gallium.

摘要翻译： 磁阻效应元件（MR元件）包括由磁化方向形成的相对角度相对于外部磁场而变化的第一和第二磁性层; 以及位于所述第一磁性层和所述第二磁性层之间的间隔层。 相对于其上形成有磁阻效应元件的基板，第一磁性层位于比第二磁性层更靠近的一侧，并且间隔层包括以氧化镓为主要成分的主间隔层，第一磁性层 位于主间隔层和第一磁性层之间并且包含铜和镓的非磁性层。

公开(公告)号：US08310791B2

公开(公告)日：2012-11-13

申请号：US12382309

申请日：2009-03-13

申请人： Takahiko Machita ,  Tomohito Mizuno ,  Koji Shimazawa ,  Tsutomu Chou ,  Daisuke Miyauchi ,  Yoshihiro Tsuchiya ,  Shinji Hara ,  Toshiyuki Ayukawa

发明人： Takahiko Machita ,  Tomohito Mizuno ,  Koji Shimazawa ,  Tsutomu Chou ,  Daisuke Miyauchi ,  Yoshihiro Tsuchiya ,  Shinji Hara ,  Toshiyuki Ayukawa

IPC分类号： G11B5/39

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

摘要： A magnetoresistive effect element is structured in the manner that the antiferromagnetic layer interposed between the upper and lower shields is eliminated and the antiferromagnetic layer is positioned in a so-called shield layer. Therefore, it is realized to solve a pin reversal problem and to allow narrower tracks and narrower read gaps.

摘要翻译： 磁阻效应元件的结构是，插入在上屏蔽和下屏蔽之间的反铁磁层被消除，反铁磁层位于所谓的屏蔽层中。 因此，实现了解决引脚反转问题并且允许更窄的轨道和更窄的读取间隙。

公开(公告)号：US08264920B1

公开(公告)日：2012-09-11

申请号：US13191913

申请日：2011-07-27

申请人： Tsutomu Chou ,  Eiji Komura ,  Shinji Hara ,  Daisuke Miyauchi ,  Kosuke Tanaka

发明人： Tsutomu Chou ,  Eiji Komura ,  Shinji Hara ,  Daisuke Miyauchi ,  Kosuke Tanaka

IPC分类号： G11B11/00 ,  G11B7/135

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/3116 ,  G11B5/6088 ,  G11B2005/0021

摘要： A near-field light generator includes a waveguide, a plasmon generator, and a metal layer. The waveguide includes a core having an evanescent light generating surface. The plasmon generator includes a base part, and a protruding part that protrudes from the base part toward the evanescent light generating surface. The protruding part has: a front end face located at an end in a direction parallel to the evanescent light generating surface; a band-shaped flat surface facing toward the evanescent light generating surface; and two side surfaces connected to the flat surface. In at least a portion of the protruding part, the distance between the two side surfaces increases with increasing distance from the evanescent light generating surface. The flat surface includes a first portion contiguous with the front end face, and a second portion that is located farther from the front end face than is the first portion. The metal layer has an end face facing the first portion. The evanescent light generating surface faces the second portion.

摘要翻译： 近场光发生器包括波导管，等离子体激元发生器和金属层。 波导包括具有ev逝光产生表面的芯。 等离子体发生器包括基部和从基部朝向渐逝光产生表面突出的突出部分。 所述突出部具有：前端面，其位于与所述ev逝光生成面平行的方向的端部; 面向渐逝光产生表面的带状平坦表面; 以及连接到平坦表面的两个侧表面。 在突出部分的至少一部分中，两个侧表面之间的距离随着与渐消光产生表面的距离的增加而增加。 平坦表面包括与前端面相邻的第一部分，以及比第一部分更远离前端面的第二部分。 金属层具有面向第一部分的端面。 渐逝光产生表面面向第二部分。

公开(公告)号：US08264919B2

公开(公告)日：2012-09-11

申请号：US12659094

申请日：2010-02-25

申请人： Eiji Komura ,  Tsutomu Chou ,  Koji Shimazawa ,  Seiichi Takayama

发明人： Eiji Komura ,  Tsutomu Chou ,  Koji Shimazawa ,  Seiichi Takayama

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G02B6/1228 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A spot size converter according to the present invention is capable of shortening the waveguide length in the spot size converter and of promoting a size reduction of the optical waveguide itself because two cores having a taper portion are combined and those tapering angles are mutually aligned. Furthermore, spot size conversion efficiency is favorable even in a small size.

摘要翻译： 根据本发明的点尺寸转换器能够缩短光斑尺寸转换器中的波导长度并且促进光波导本身的尺寸减小，因为具有锥形部分的两个芯体组合并且这些渐缩角度相互对准。 此外，即使在小尺寸的情况下，光斑尺寸转换效率也是有利的。