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    Magnetoresistive head with antiferromagnetic sublayers interposed between first and second spin-valve units to exchange bias inner magnetic films thereof
    52.
    发明授权
    Magnetoresistive head with antiferromagnetic sublayers interposed between first and second spin-valve units to exchange bias inner magnetic films thereof 失效
    具有反铁磁性子层的磁阻头插入在第一和第二自旋阀单元之间以交换其内部磁性膜

    公开(公告)号：US5576915A

    公开(公告)日：1996-11-19

    申请号：US472487

    申请日：1995-06-07

    Applicant: Junichi Akiyama ,  Hiroaki Yoda ,  Yuichi Ohsawa ,  Hitoshi Iwasaki

    Inventor： Junichi Akiyama ,  Hiroaki Yoda ,  Yuichi Ohsawa ,  Hitoshi Iwasaki

    IPC: G11B5/39

    CPC classification number: G11B5/3903 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3954 ,  G11B5/399 ,  G11B2005/3996

    Abstract: A magnetoresistive head includes an antiferromagnetic portion interposed between first and second spin-valve units. Sense current supply directions through the first and second spin-valve units are perpendicular to a head facing surface of a magnetic recording medium. The first spin-valve unit is formed of a first inner magnetic film, a first outer magnetic film and a nonmagnetic film interposed between and in direct physical contact with the first inner magnetic film and the first outer magnetic film. The second spin-valve unit is formed of a second inner magnetic film, a second outer magnetic film and a nonmagnetic film interposed between and in direct physical contact with the second inner magnetic film and the second outer magnetic film. The antiferromagnetic portion is formed of a first antiferromagnetic sublayer and a second antiferromagnetic sublayer laminated on the first antiferromagnetic sublayer. The first antiferromagnetic sublayer is in contact with the first inner magnetic film to apply a first exchange bias magnetic field to the first inner magnetic film in a direction perpendicular to the head facing surface of the magnetic recording medium. The second antiferromagnetic sublayer is in contact with the second inner magnetic film to apply a second exchange bias magnetic field to the second inner magnetic film in a direction perpendicular to the surface of the magnetic recording medium. The second exchange bias magnetic field has a polarity opposite to that of the first exchange bias magnetic field.

    Abstract translation: 磁阻头包括介于第一和第二自旋阀单元之间的反铁磁部分。 通过第一和第二自旋阀单元的感测电流供给方向垂直于磁记录介质的朝向头部的表面。 第一自旋阀单元由第一内部磁性膜，第一外部磁性膜和介于第一内部磁性膜和第一外部磁性膜直接物理接触之间的非磁性膜形成。 第二自旋阀单元由第二内部磁性膜，第二外部磁性膜和介于第二内部磁性膜和第二外部磁性膜直接物理接触之间的非磁性膜形成。 反铁磁部分由层叠在第一反铁磁性子层上的第一反铁磁性子层和第二反铁磁性层构成。 第一反铁磁性子层与第一内部磁性膜接触，以在垂直于磁记录介质的朝向磁头的表面的方向上向第一内部磁性膜施加第一交换偏置磁场。 第二反铁磁子层与第二内磁性膜接触，以在垂直于磁记录介质的表面的方向上向第二内磁膜施加第二交换偏置磁场。 第二交换偏置磁场的极性与第一交换偏置磁场的极性相反。

    Magneto-resistive head
    53.
    发明授权
    Magneto-resistive head 失效
    磁阻头

    公开(公告)号：US5461527A

    公开(公告)日：1995-10-24

    申请号：US340448

    申请日：1994-11-14

    Applicant: Junichi Akiyama ,  Yuichi Ohsawa ,  Hitoshi Iwasaki ,  Reiko Kondoh ,  Kohichi Tateyama ,  Toshihiko Ohta ,  Hiroaki Yoda

    Inventor： Junichi Akiyama ,  Yuichi Ohsawa ,  Hitoshi Iwasaki ,  Reiko Kondoh ,  Kohichi Tateyama ,  Toshihiko Ohta ,  Hiroaki Yoda

    IPC: G11B5/39

    CPC classification number: G11B5/3932 ,  G11B5/399

    Abstract: A member having a first and a second magnetic layer are magnetostatically coupled and laminated and the first magnetic layer formed on a magneto-resistive element, for creating the exchange coupling on the magneto-resistive element and the first magnetic layer. The member is formed by sequentially laminating a first ferromagnetic layer magnetized in a sense along the direction of the longitudinal bias of the magneto-resistive element, non-magnetic layer and second ferromagnetic layer magnetized in a direction opposite to the magnetized direction of the first ferromagnetic layer, for example.

    Abstract translation: 具有第一和第二磁性层的构件被静磁耦合和层叠，并且第一磁性层形成在磁阻元件上，用于在磁阻元件和第一磁性层上产生交换耦合。 该构件通过沿着磁阻元件的方向磁化的第一铁磁层顺序地层叠，非磁性层和第二铁磁层沿与第一铁磁体的磁化方向相反的方向被磁化的方向 层，例如。

    Magnetic head using high saturated magnetic flux density film and manufacturing method thereof
    54.
    发明授权
    Magnetic head using high saturated magnetic flux density film and manufacturing method thereof 失效
    使用高饱和磁通密度膜的磁头及其制造方法

    公开(公告)号：US5287239A

    公开(公告)日：1994-02-15

    申请号：US547028

    申请日：1990-07-02

    Applicant: Hitoshi Iwasaki

    Inventor： Hitoshi Iwasaki

    IPC: G11B5/127 ,  G11B5/31 ,  G11B5/147 ,  B32B9/00

    CPC classification number: G11B5/3109 ,  G11B5/1278 ,  Y10T428/1171

    Abstract: A magnetic head including a magnetic film formed on a substrate. The magnetic film contains a Co-rich Fe alloy having a face-centered cubic phase in which the axis has been oriented in a direction perpendicular to the film surface, an insulating film formed on the magnetic film, and coils buried in the insulating film so as to generate a magnetic field. The Co-rich Fe alloy contains 15 to 24 atomic % of Fe. The magnetic head is manufactured by forming a magnetic film on a substrate, the magnetic film containing a Co-rich Fe alloy having a fcc phase in which the axis has been oriented in a direction perpendicular to the film surface. Next, an insulating film having coils for generating a magnetic field buried therein is formed on the magnetic film.

    Abstract translation: 一种磁头，其包括形成在基板上的磁性膜。 磁性膜含有具有面心立方相的Co富Fe合金，其中<100>轴在垂直于膜表面的方向上取向，形成在磁膜上的绝缘膜和埋在 绝缘膜以产生磁场。 富Fe合金含有15〜24原子％的Fe。 通过在基板上形成磁性膜来制造磁头，所述磁性膜含有具有fcc相的Co富Fe合金，其中<100>轴已沿垂直于膜表面的方向取向。 接下来，在磁性膜上形成具有用于产生磁场的线圈的绝缘膜。

    Remote control mechanism
    55.
    发明授权
    Remote control mechanism 失效
    遥控机构

    公开(公告)号：US5216934A

    公开(公告)日：1993-06-08

    申请号：US411046

    申请日：1989-09-21

    Applicant: Hitoshi Iwasaki

    Inventor： Hitoshi Iwasaki

    IPC: H04Q9/00 ,  B63H21/22 ,  F16C1/10 ,  F16C1/12 ,  G05G11/00

    CPC classification number: B63H21/213 ,  F16C1/10 ,  F16C1/12 ,  G05G11/00 ,  Y10T74/20213 ,  Y10T74/20232 ,  Y10T74/20408 ,  Y10T74/2042 ,  Y10T74/20426

    Abstract: A remote control mechanism for controlling an outboard drive, throttle and transmission from either of two selected remote operators. When one operator is controlling the outboard drive, control of the outboard drive from the other operator is not permitted because of a series of interlocks. Each of the interlocks include a respective detent members and detent recesses. The detent recesses are sized larger than the detent members so as to provide some lost motion and to accommodate misalignments caused by flexure in the associated actuating cables.

    Abstract translation: 用于控制来自两个选定的远程操作员之一的外部驱动器，节流阀和传动装置的远程控制机构。 当一个操作员控制外侧驱动器时，由于一系列互锁，不允许从其他操作员控制舷外驱动器。 每个互锁件包括相应的制动构件和制动凹槽。 制动凹槽的尺寸大于制动构件，以便提供一些空动作并且适应由相关联的致动电缆中的挠曲引起的不对准。

    Polyester copolymer
    56.
    发明授权
    Polyester copolymer 失效
    聚酯共聚物

    公开(公告)号：US5095089A

    公开(公告)日：1992-03-10

    申请号：US571537

    申请日：1990-08-28

    Applicant: Hiroshi Mori ,  Naoki Yamamoto ,  Hitoshi Iwasaki ,  Noriyuki Taziri

    Inventor： Hiroshi Mori ,  Naoki Yamamoto ,  Hitoshi Iwasaki ,  Noriyuki Taziri

    IPC: C08G63/199

    CPC classification number: C08G63/199

    Abstract: Disclosed is a polyester copolymer obtained by reacting (A) a dicarboxylic acid component composed mainly of terephthalic acid or its derivative with (B) a glycol component comprising 15 to 85 mole % of (B-1) an aliphatic diol having 2 to 16 carbon atoms and 85 to 15 mole % of (B-2), 1,4-cyclohexanedimethanol in which the content of the trans-form is at least 80 mole %. This polyester copolymer has a low rate of crystallization and provides a shaped article having a high heat resistance.

    Magnetic head assembly
    57.
    发明授权
    Magnetic head assembly 有权
    磁头组件

    公开(公告)号：US08687321B2

    公开(公告)日：2014-04-01

    申请号：US12382940

    申请日：2009-03-26

    Applicant: Kenichiro Yamada ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Tomomi Funayama

    Inventor： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Tomomi Funayama

    IPC: G11B5/60

    CPC classification number: G11B5/314 ,  G11B5/02 ,  G11B5/3146 ,  G11B2005/0005 ,  G11B2005/0024 ,  H03B15/006

    Abstract: A magnetic head assembly includes: a magnetic recording head, a head slider, a suspension and an actuator arm. The magnetic recording head includes a spin torque oscillator and a main magnetic pole. The spin torque oscillator includes, a first magnetic layer including at least one selected from the group consisting of a Fe—Co—Al alloy, a Fe—Co—Si alloy, a Fe—Co—Ge alloy, a Fe—Co—Mn alloy a Fe—Co—Cr alloy and a Fe—Co—B alloy, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The main magnetic pole is placed together with the spin torque oscillator. The magnetic recording head is mounted on the head slider. The head slider is mounted on one end of the suspension. The actuator arm is connected to other end of the suspension.

    Abstract translation: 磁头组件包括：磁记录头，磁头滑块，悬架和致动器臂。 磁记录头包括自旋扭矩振荡器和主磁极。 自旋转矩振荡器包括：第一磁性层，其包括选自由Fe-Co-Al合金，Fe-Co-Si合金，Fe-Co-Ge合金，Fe-Co-Mn 合金Fe-Co-Cr合金和Fe-Co-B合金，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层。 主磁极与自旋扭矩振荡器一起放置。 磁记录头安装在磁头滑块上。 磁头滑块安装在悬架的一端。 执行器臂连接到悬架的另一端。

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