公开(公告)号：US08084149B2

公开(公告)日：2011-12-27

申请号：US11493233

申请日：2006-07-25

Applicant: Susumu Soeya

Inventor： Susumu Soeya

IPC: G11B5/66

CPC classification number: G11B5/66

Abstract: Embodiments of the invention provide a thermally assisted magnetic recording medium, which can overcome resistance against thermal fluctuation at RT and write capability, obtain a drastic temperature variation in coercive force at right below the recording temperature, and be formed at low temperature. In one embodiment, the medium has a layered structure formed of a lower high-KF ferromagnetic (F) layer formed on a substrate, satisfying TW

Abstract translation: 本发明的实施例提供了一种热辅助磁记录介质，其能够克服对RT下的热波动的阻力和写入能力，在低于记录温度下获得矫顽力的剧烈温度变化，并且在低温下形成。 在一个实施例中，介质具有由形成在基板上的下部高KF铁磁性（F）层形成的分层结构，满足TW

公开(公告)号：US5726838A

公开(公告)日：1998-03-10

申请号：US400457

申请日：1995-03-07

Applicant: Susumu Soeya ,  Shigeru Tadokoro ,  Takao Imagawa ,  Akira Kumagai ,  Moriaki Fuyama ,  Shinji Narishige

Inventor： Susumu Soeya ,  Shigeru Tadokoro ,  Takao Imagawa ,  Akira Kumagai ,  Moriaki Fuyama ,  Shinji Narishige

IPC: G11B5/39 ,  G11B5/012 ,  G11B5/31

CPC classification number: G11B5/012 ,  G11B5/3113 ,  G11B5/3903 ,  G11B5/3929 ,  G11B5/3967 ,  G11B5/3163

Abstract: A magnetic disc apparatus capable of noiseless, high-output reproduction is disclosed. A magnetic head including a magnetic domain control structure having an antiferromagnetic film for applying a longitudinally biasing magnetic field to a magneto-sensitive portion of a magneto-resistance effect film, and a magnetic film smaller in spontaneous magnetization than the magneto-resistance effect film, which magnetic film is interposed between the magneto-resistance effect film and the antiferromagnetic film. A magnetic disc apparatus is thus realized which is high in recording density and usable in stable manner within the operating temperature range.

Abstract translation: 公开了一种能够进行无噪声，高输出再现的磁盘装置。 一种包括具有用于向磁阻效应膜的磁敏部分施加纵向偏置磁场的反铁磁膜的磁畴控制结构的磁头和比磁阻效应膜小的自发磁化的磁性膜， 该磁性膜介于磁阻效应膜和反铁磁膜之间。 因此，实现了高记录密度并且在工作温度范围内可稳定使用的磁盘装置。

公开(公告)号：US07732005B2

公开(公告)日：2010-06-08

申请号：US11134399

申请日：2005-05-23

Applicant: Yuko Tsuchiya ,  Susumu Soeya ,  Hiromasa Takahashi

Inventor： Yuko Tsuchiya ,  Susumu Soeya ,  Hiromasa Takahashi

IPC: B28B3/00 ,  B05D5/10 ,  G11B5/71 ,  C03C15/00

CPC classification number: G11B11/10582 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B11/10528 ,  G11B11/10532 ,  G11B11/10584 ,  G11B2005/0005 ,  G11B2005/0021 ,  G11B2005/0029 ,  Y10T428/11

Abstract: A method for producing a recording medium provides good throughput for mass production and reduces cost. The method facilitates the control of the shape or dimensions of a pattern obtained by microfabrication, allows an accurate pattern transfer, and provides superior uniformity. A magnetic layer is formed on a substrate. A nano-particle film 16 is formed on a desired portion on the magnetic layer. Using the nano-particle film as a mask, the magnetic layer is cut. A micropattern with concavities and convexities is formed on the magnetic layer by removing the nano-particle film.

Abstract translation: 一种记录介质的制造方法为大量生产提供了良好的生产量并且降低了成本。 该方法有助于控制通过微细加工获得的图案的形状或尺寸，允许精确的图案转印，并提供优异的均匀性。 在基板上形成磁性层。 纳米颗粒膜16形成在磁性层上的所需部分上。 使用纳米颗粒膜作为掩模，切割磁性层。 通过除去纳米颗粒膜，在磁性层上形成具有凹凸的微图案。

公开(公告)号：US06917088B2

公开(公告)日：2005-07-12

申请号：US10331664

申请日：2002-12-31

Applicant: Hiromasa Takahashi ,  Jun Hayakawa ,  Susumu Soeya ,  Kenchi Ito

Inventor： Hiromasa Takahashi ,  Jun Hayakawa ,  Susumu Soeya ,  Kenchi Ito

IPC: G01R33/09 ,  G11B5/39 ,  G11C11/15 ,  H01F10/32 ,  H01L21/8246 ,  H01L27/105 ,  H01L27/14 ,  H01L29/82 ,  H01L29/84 ,  H01L43/08 ,  H01L43/10

CPC classification number: G11B5/3903 ,  H01L27/228 ,  H01L43/08 ,  H01L43/10

Abstract: A magneto-resistive device has a high reproducing output and is suitable for use as a CPP-GMR device. The magneto-resistive device has a first magnetic layer, a second magnetic layer, and a non-magnetic spacer formed between the first and second magnetic layers. The first magnetic layer contains a magnetic material whose conduction electrons belong to a first energy band, and the second magnetic layer contains a magnetic material whose conduction electrons belong to a second energy band. The first and second energy bands are attributable to orbitals of the same kind, thereby increasing the ratio of change in magnetoresistance and adjusting the electric resistance.

Abstract translation: 磁阻装置具有高的再现输出，并且适合用作CPP-GMR装置。 磁阻装置具有形成在第一和第二磁性层之间的第一磁性层，第二磁性层和非磁性间隔物。 第一磁性层包含导电电子属于第一能带的磁性材料，第二磁性层含有导电电子属于第二能带的磁性材料。 第一和第二能带可归因于相同轨道，从而增加磁阻变化率和调整电阻。

公开(公告)号：US06876523B2

公开(公告)日：2005-04-05

申请号：US10225150

申请日：2002-08-22

Applicant: Hiromasa Takahashi ,  Susumu Soeya ,  Jun Hayakawa ,  Kenchi Ito

Inventor： Hiromasa Takahashi ,  Susumu Soeya ,  Jun Hayakawa ,  Kenchi Ito

IPC: G11C11/14 ,  G11B5/31 ,  G11B5/39 ,  G11C11/15 ,  H01F10/16 ,  H01F10/30 ,  H01F10/32 ,  H01L21/8246 ,  H01L27/105 ,  H01L43/08

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/3163 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3932 ,  G11B2005/3996

Abstract: A magnetic head at high sensitivity and with enhanced output having a magnetoresistive element of high output and optimal for use in CPP-GMR, the magnetoresistive element comprising a pinned layer 606 containing a half-metal, a free layer 608 formed on one main surface of the pinned layer 606, a spacer 607 formed between the pinned layer 606 and the free layer 608, an anti-ferromagnetic layer 603 formed on the main surface of the pinned layer 606, a soft magnetic layer 604 formed between the pinned layer 606 and the anti-ferromagnetic layer 606, and a noble-metallic layer 605 formed between the pinned layer 606 and the soft magnetic layer.

Abstract translation: 具有高灵敏度和增强输出的磁头具有高输出的磁阻元件，并且最适用于CPP-GMR，该磁阻元件包括一个钉扎层606，该固定层606包含半金属，形成在一个主表面上的自由层608 被钉扎层606，形成在被钉扎层606和自由层608之间的隔离物607，形成在被钉扎层606的主表面上的反铁磁层603，形成在钉扎层606和被钉扎层606之间的软磁性层604。 反铁磁层606和形成在被钉扎层606和软磁性层之间的贵金属层605。

公开(公告)号：US5933297A

公开(公告)日：1999-08-03

申请号：US45189

申请日：1993-04-13

Applicant: Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

Inventor： Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

IPC: G11B5/012 ,  G11B5/09 ,  G11B5/39 ,  G11B5/48 ,  H01F10/06

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/09 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3919 ,  G11B5/3967 ,  G11B5/398 ,  G11B5/4886 ,  G11B2005/3996

Abstract: A magnetic storage/read system includes a recording medium for magnetically storing a signal and a magnetoresistive element which is driven relative to the recording medium. The magnetoresistive element may include a substrate, a first antiferromagnetic film, a first ferromagnetic film, a first nonmagnetic film, a soft magnetic film, a second nonmagnetic film, a second ferromagnetic film, and a second antiferromagnetic film, wherein the films are sequentially layered directly on the substrate with no intervening layer between any of the films. At least one of the first antiferromagnetic film and the second antiferromagnetic film may be made of nickel oxide. The first ferromagnetic film and the second ferromagnetic film have a first magnetization which is fixed in a predetermined direction, and the soft magnetic film has a second magnetization which is rotatable in response to a magnetic field from the recording medium such that an angle between a direction of the second magnetization and the predetermined direction in which the first magnetization is fixed varies in response to the magnetic field from the recording medium, thereby producing a magnetoresistive effect.

Abstract translation: 磁存储/读取系统包括用于磁存储信号的记录介质和相对于记录介质驱动的磁阻元件。 磁阻元件可以包括基板，第一反铁磁膜，第一铁磁膜，第一非磁性膜，软磁膜，第二非磁性膜，第二铁磁膜和第二反铁磁膜，其中膜依次层叠 直接在衬底上，在任何膜之间没有中间层。 第一反铁磁膜和第二反铁磁膜中的至少一个可以由氧化镍制成。 第一铁磁膜和第二铁磁膜具有沿预定方向固定的第一磁化，并且软磁膜具有可响应于来自记录介质的磁场而旋转的第二磁化，使得在方向 第二磁化和第一磁化固定的预定方向响应于来自记录介质的磁场而变化，由此产生磁阻效应。

公开(公告)号：US20050266271A1

公开(公告)日：2005-12-01

申请号：US11134399

申请日：2005-05-23

Applicant: Yuko Tsuchiya ,  Susumu Soeya ,  Hiromasa Takahashi

Inventor： Yuko Tsuchiya ,  Susumu Soeya ,  Hiromasa Takahashi

IPC: G11B5/02 ,  B05D5/12 ,  G11B5/00 ,  G11B5/33 ,  G11B5/84 ,  G11B5/855 ,  G11B11/105

CPC classification number: G11B11/10582 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B11/10528 ,  G11B11/10532 ,  G11B11/10584 ,  G11B2005/0005 ,  G11B2005/0021 ,  G11B2005/0029 ,  Y10T428/11

Abstract: A method for producing a recording medium provides good throughput for mass production and reduces cost. The method facilitates the control of the shape or dimensions of a pattern obtained by microfabrication, allows an accurate pattern transfer, and provides superior uniformity. A magnetic layer is formed on a substrate. A nano-particle film 16 is formed on a desired portion on the magnetic layer. Using the nano-particle film as a mask, the magnetic layer is cut. A micropattern with concavities and convexities is formed on the magnetic layer by removing the nano-particle film.

Abstract translation: 一种记录介质的制造方法为大量生产提供了良好的生产量并且降低了成本。 该方法有助于控制通过微细加工获得的图案的形状或尺寸，允许精确的图案转印，并提供优异的均匀性。 在基板上形成磁性层。 纳米颗粒膜16形成在磁性层上的所需部分上。 使用纳米颗粒膜作为掩模，切割磁性层。 通过除去纳米颗粒膜，在磁性层上形成具有凹凸的微图案。

公开(公告)号：US06870718B2

公开(公告)日：2005-03-22

申请号：US09811606

申请日：2001-03-20

Applicant: Hiromasa Takahashi ,  Reiko Arai ,  Susumu Soeya

Inventor： Hiromasa Takahashi ,  Reiko Arai ,  Susumu Soeya

IPC: G01R33/09 ,  G11B5/127 ,  G11B5/33 ,  G11B5/39 ,  H01L43/08

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G01R33/09 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3932 ,  G11B5/3967 ,  G11B2005/3996

Abstract: A magnetoresistive sensor of the type of flowing a signal sensing current perpendicular to the plane to improve resolution at reproducing a signal, a magnetic head using the magnetoresistive sensor, and a magnetic disk apparatus. A magnetoresistive sensor comprising a substrate, a pair of magnetic shield layers consisting of a lower magnetic shield layer and an upper magnetic shield layer, a magnetoresistive sensor layer, disposed between the pair of magnetic shield layers, an electrode terminal for flowing a signal current perpendicular to the plane of the magnetoresistive sensor layer, and magnetic domain control layers for controlling Barkhausen noise of the magnetoresistive sensor layer, wherein the magnetic domain control layers disposed in contact with opposite ends of the magnetoresistive sensor layer consist of a material having high electric resistivity and with a specific resistance not less than 10 mΩcm so as to give the magnetoresistive sensor having excellent reproducing resolution.

Abstract translation: 一种磁阻传感器，其类型是使垂直于该平面的信号感应电流流动，以改善再现信号时的分辨率，使用磁阻传感器的磁头和磁盘装置。 一种磁阻传感器，包括基板，由下磁屏蔽层和上磁屏蔽层组成的一对磁屏蔽层，设置在一对磁屏蔽层之间的磁阻传感器层，用于垂直于信号电流流动的电极端子 磁阻传感器层的平面和用于控制磁阻传感器层的巴克豪森噪声的磁畴控制层，其中与磁阻传感器层的相对端接触设置的磁畴控制层由具有高电阻率的材料组成， 具有不小于10mOggacm的电阻率，以使具有优异再现分辨率的磁阻传感器。

公开(公告)号：US06690526B2

公开(公告)日：2004-02-10

申请号：US09811567

申请日：2001-03-20

Applicant: Kenchi Ito ,  Susumu Soeya

Inventor： Kenchi Ito ,  Susumu Soeya

IPC: G11B502

CPC classification number: G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/00 ,  G11B5/127 ,  G11B5/245 ,  G11B5/2452 ,  G11B5/3113 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/33 ,  G11B5/39 ,  G11B5/3919 ,  G11B13/045 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0008 ,  G11B2005/0021 ,  G11B2005/3996

Abstract: A magnetic recording and reproducing head which includes a magnetic sensor, and a flux guide for introducing a magnetic flux into the magnetic sensor. At least a portion of the flux guide is constituted by a material which permits the magnetic flux to pass therethrough at a temperature of not lower than a predetermined temperature Tp, but not permit the magnetic flux to pass therethrough at a temperature of lower than Tp. Light is irradiated to only a portion of the flux guide to cause the temperature of the irradiated portion to rise up to Tp or more, thereby permitting a magnetic flux to pass only through the irradiated portion.

Abstract translation: 一种包括磁传感器的磁记录和再现头，以及用于将磁通量引入到磁传感器中的磁通引导件。 磁通引导件的至少一部分由允许磁通在不低于预定温度Tp的温度下通过的材料构成，但不允许磁通在低于Tp的温度下通过。 仅将光束照射到通量引导件的一部分，使照射部的温度上升到Tp以上，从而允许磁通仅通过照射部。

公开(公告)号：US06633465B2

公开(公告)日：2003-10-14

申请号：US09840869

申请日：2001-04-25

Applicant: Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

Inventor： Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

IPC: G11B539

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/09 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3919 ,  G11B5/3967 ,  G11B5/398 ,  G11B5/4886 ,  G11B2005/3996

Abstract: A magnetoresistive element includes a first antiferromagnetic film, a first magnetic film having a magnetization direction fixed by magnetic coupling with the first antiferromagnetic film, a second antiferromagnetic film, a second magnetic film having a magnetization direction fixed by magnetic coupling with the second antiferromagnetic film, a third magnetic film having a magnetization direction able to rotate in response to an applied magnetic field, a first nonmagnetic film disposed between the first magnetic film and the third magnetic film, and a second nonmagnetic film disposed between the second magnetic film and the third magnetic film. The third magnetic film is disposed between the first nonmagnetic film and the second nonmagnetic film, the first magnetic film is disposed between the first antiferromagnetic film and the first nonmagnetic film, and the second magnetic film is disposed between the second antiferromagnetic film and the second nonmagnetic film.

Abstract translation: 磁阻元件包括第一反铁磁膜，具有通过与第一反铁磁膜的磁耦合固定的磁化方向的第一磁性膜，第二反铁磁膜，具有通过与第二反铁磁性膜耦合而固定的磁化方向的第二磁性膜， 具有响应于施加的磁场而能够旋转的磁化方向的第三磁性膜，设置在第一磁性膜和第三磁性膜之间的第一非磁性膜和设置在第二磁性膜和第三磁性膜之间的第二非磁性膜 电影。 第三磁性膜设置在第一非磁性膜和第二非磁性膜之间，第一磁性膜设置在第一反铁磁膜和第一非磁性膜之间，第二磁性膜设置在第二反铁磁膜和第二非磁性膜之间 电影。