公开(公告)号：US07573686B2

公开(公告)日：2009-08-11

申请号：US11474487

申请日：2006-06-26

申请人： Kei Hirata ,  Satoshi Miura ,  Naoki Ota

发明人： Kei Hirata ,  Satoshi Miura ,  Naoki Ota

IPC分类号： G11B5/39

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3906

摘要： An MR element comprises: a tunnel barrier layer having two surfaces facing toward opposite directions; a free layer disposed adjacent to one of the surfaces of the tunnel barrier layer and having a direction of magnetization that changes in response to a signal magnetic field; and a pinned layer disposed adjacent to the other of the surfaces of the tunnel barrier layer and having a fixed direction of magnetization. The tunnel barrier layer is made of a material containing an oxide semiconductor such as ZnO. The MR element has a resistance-area product that falls within a range of 0.3 to 2.0 Ω-μm2 inclusive.

摘要翻译： MR元件包括：具有面向相反方向的两个表面的隧道势垒层; 邻近所述隧道势垒层的一个表面并且具有响应于信号磁场而改变的磁化方向的自由层; 以及与隧道势垒层的另一个表面相邻并且具有固定的磁化方向的被钉扎层。 隧道势垒层由含有ZnO等氧化物半导体的材料构成。 MR元件的电阻面积为0.3〜2.0Ωm2（含）的范围。

公开(公告)号：US07542233B2

公开(公告)日：2009-06-02

申请号：US11337659

申请日：2006-01-24

申请人： Kei Hirata ,  Takahiko Machita ,  Kiyoshi Noguchi

发明人： Kei Hirata ,  Takahiko Machita ,  Kiyoshi Noguchi

IPC分类号： G11B5/17

CPC分类号： G11B5/1278

摘要： A perpendicular magnetic recording element includes a recording magnetic pole film and a write shield film. The recording magnetic pole film has a yoke portion and a main magnetic pole for perpendicular recording. The main magnetic pole projects from a front end of the yoke portion to have an end on a medium-facing surface. The write shield film faces the recording magnetic pole film and has a height equal to or smaller than that of the recording magnetic pole film, as measured rearward from the medium-facing surface.

摘要翻译： 垂直磁记录元件包括记录磁极膜和写保护膜。 记录磁极膜具有用于垂直记录的磁轭部分和主磁极。 主磁极从磁轭部的前端突出，以在中间面的表面上具有一端。 写入屏蔽膜面向记录磁极膜，并且具有与记录磁极膜相同或更小的高度，从中间面向后测量。

公开(公告)号：US20080305442A1

公开(公告)日：2008-12-11

申请号：US11806959

申请日：2007-06-05

申请人： Kazuki Sato ,  Akifumi Kamijima ,  Takayasu Kanaya ,  Kei Hirata

发明人： Kazuki Sato ,  Akifumi Kamijima ,  Takayasu Kanaya ,  Kei Hirata

IPC分类号： G03C5/00

CPC分类号： H01L29/82 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/1278 ,  G11B5/3163 ,  G11B5/3967 ,  H01F41/34 ,  H01L21/0331 ,  H01L43/12

摘要： A formation method for a patterned material layer comprising a step of exposing a composite layer to light in a predetermined pattern, the composite layer including a first photosensitive resin layer, a protective film, and an upper resin layer; a step of partly removing the exposed composite layer so as to form an opening exposing the substrate and form a groove along the main surface of the substrate on a side face of the opening by depressing the end portion of the upper resin layer on the substrate side, thereby forming a resist frame comprising the composite layer formed with the opening; a step of forming a vacuum coated layer having a material pattern part formed on the substrate in the opening and a part to lift off formed on the resist frame, by vacuum coating process; and a step of removing the part to lift off together with the resist frame, so as to yield a patterned material layer.

摘要翻译： 一种图案化材料层的形成方法，包括将复合层以预定图案曝光的步骤，所述复合层包括第一感光树脂层，保护膜和上树脂层; 一部分去除露出的复合层以形成露出基板的开口，并通过在基板侧压下上树脂层的端部，沿着开口的侧面沿基板的主表面形成凹槽 从而形成包括形成有开口的复合层的抗蚀剂框架; 通过真空镀膜工艺形成真空涂层的步骤，该真空涂层具有形成在开口中的基板上的材料图案部分和形成在抗蚀框架上的部分; 以及除去该部分以与抗蚀剂框架一起剥离的步骤，以产生图案化的材料层。

公开(公告)号：US20080226947A1

公开(公告)日：2008-09-18

申请号：US11685043

申请日：2007-03-12

申请人： Tomohito MIZUNO ,  Yoshihiro TSUCHIYA ,  Kei HIRATA

发明人： Tomohito MIZUNO ,  Yoshihiro TSUCHIYA ,  Kei HIRATA

IPC分类号： G11B5/39 ,  G11B5/33

CPC分类号： H01F10/1936 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/18 ,  G11B5/3906 ,  H01F10/3272 ,  H01F10/3295 ,  Y10T428/1107

摘要： A magnetoresistance effect element includes a pinned layer having a fixed magnetization direction, a free layer having a magnetization direction variable depending on an external magnetic field, and a nonmagnetic spacer layer disposed between the pinned layer and the free layer. The free layer includes a Heusler alloy layer and a magnetostriction reduction layer made of a 4th group element, a 5th group element, or a 6th group element.

摘要翻译： 磁阻效应元件包括具有固定磁化方向的固定层，具有取决于外部磁场的磁化方向可变的自由层和设置在被钉扎层和自由层之间的非磁性间隔层。 自由层包括Heusler合金层和由第4族元素，第5族元素或第6族元素构成的磁致伸缩层。

公开(公告)号：US20080056771A1

公开(公告)日：2008-03-06

申请号：US11785169

申请日：2007-04-16

申请人： Kiyoshi Chatani ,  Kei Hirata ,  Takashi Sakamoto ,  Hideaki Miyata

发明人： Kiyoshi Chatani ,  Kei Hirata ,  Takashi Sakamoto ,  Hideaki Miyata

IPC分类号： G03G15/08 ,  G03G21/00

CPC分类号： G03G15/0893 ,  G03G15/0868 ,  G03G2215/0827

摘要： An image forming member includes: an electrostatic latent image holding member that holds an electrostatic latent image; a developing unit that develops a toner image formed by a toner on a surface of the electrostatic latent image holding member; a toner removing member that removes a residual toner remaining on a surface of the electrostatic latent image holding member; a conveying path including a conveying member that is internally provided in the conveying path and that returns the residual toner removed from the surface of the electrostatic latent image holding member to the developing unit; and a trapping portion that traps a foreign matter conveyed by the conveying member, the electrostatic latent image holding member, the developing unit, the toner removing member, the conveying path, and the trapping portion of the image forming member being integrally and detachably attached to an image forming apparatus body.

摘要翻译： 图像形成构件包括：静电潜像保持构件，其保持静电潜像; 显影单元，其显影由静电潜像保持部件的表面上的调色剂形成的调色剂图像; 去除残留在静电潜像保持部件的表面上的残留调色剂的调色剂除去部件; 输送路径，包括内部设置在所述输送路径中并将从所述静电潜像保持构件的表面移除的残留调色剂返回到所述显影单元的输送构件; 以及捕获部，其捕获由所述输送构件，所述静电潜像保持构件，所述显影单元，所述调色剂移除构件，所述输送路径和所述图像形成构件的所述捕获部分输送的异物一体地可拆卸地附接到 图像形成装置主体。

公开(公告)号：US20070211391A1

公开(公告)日：2007-09-13

申请号：US11616503

申请日：2006-12-27

申请人： Kei HIRATA ,  Koji Shimazawa ,  Atsushi Yamaguchi ,  Kiyoshi Noguchi

发明人： Kei HIRATA ,  Koji Shimazawa ,  Atsushi Yamaguchi ,  Kiyoshi Noguchi

IPC分类号： G11B5/33

CPC分类号： G11B5/3912

摘要： A current-perpendicular-to-plane magneto-resistive element includes a magneto-resistive film and a pair of upper and lower magnetic shielding films holding the magneto-resistive film therebetween for current feeding. The lower magnetic shielding film has an at least two-layer structure including a crystalline material layer and an amorphous material layer disposed below the crystalline material layer.

摘要翻译： 电流 - 垂直于平面的磁阻元件包括磁阻膜和一对上下磁屏蔽膜，其在其间保持用于电流馈送的磁阻膜。 下磁屏蔽膜具有至少两层结构，包括结晶材料层和设置在结晶材料层下方的无定形材料层。

公开(公告)号：US20070165330A1

公开(公告)日：2007-07-19

申请号：US11647493

申请日：2006-12-29

申请人： Atsushi Yamaguchi ,  Kiyoshi Noguchi ,  Kei Hirata

发明人： Atsushi Yamaguchi ,  Kiyoshi Noguchi ,  Kei Hirata

IPC分类号： G11B5/147

CPC分类号： G11B5/3113 ,  G11B5/3163

摘要： A pole layer of a magnetic head incorporates a soft magnetic film made of an iron-cobalt-nickel-base alloy. When the total of the iron, cobalt and nickel contents of the soft magnetic film is assumed as 100 weight percent, the iron content of the soft magnetic film is within a range of 42 to 90 weight percent inclusive, the cobalt content thereof is within a range of 0 to 48 weight percent inclusive, and the nickel content thereof is within a range of 10 to 20 weight percent inclusive. The soft magnetic film has a crystal structure that is a mixed crystal of a body-centered cubic structure phase and a face-centered cubic structure phase. The soft magnetic film is manufactured by performing electroplating using a plating current whose direction is alternately switched.

摘要翻译： 磁头的极层包含由铁 - 钴 - 镍基合金制成的软磁膜。 当软磁性膜的铁，钴和镍含量的总和为100重量％时，软磁性膜的铁含量在42〜90重量％的范围内，其钴含量在 范围为0〜48重量％，其含量在10〜20重量％的范围内。 软磁性膜具有作为体心立方结构相和面心立方结构相的混晶的晶体结构。 通过使用交替切换方向的电镀电流进行电镀来制造软磁性膜。

公开(公告)号：US20070139817A1

公开(公告)日：2007-06-21

申请号：US11591504

申请日：2006-11-02

申请人： Kei Hirata ,  Kiyoshi Noguchi

发明人： Kei Hirata ,  Kiyoshi Noguchi

IPC分类号： G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： A magnetic head comprises: a medium facing surface; a coil for generating a magnetic field corresponding to data to be written on a recording medium; and a pole layer allowing a magnetic flux corresponding to the field generated by the coil to pass therethrough, and generating a write magnetic field for writing the data on the recording medium by means of a perpendicular magnetic recording system. The pole layer incorporates a track width defining portion and a wide portion. The track width defining portion has an end face that is located in the medium facing surface and that defines the track width. The maximum width of the wide portion is greater than the track width and equal to or greater than the length of the wide portion taken in the direction orthogonal to the medium facing surface. When the coil is generating no magnetic field, in the end face of the track width defining portion, there exist first and second regions in which the directions of components of magnetization orthogonal to the medium facing surface are opposite.

摘要翻译： 磁头包括：面向介质的表面; 用于产生对应于要写入记录介质的数据的磁场的线圈; 以及允许对应于由线圈产生的磁场的磁通量通过的磁极层，并且通过垂直磁记录系统产生用于将数据写入记录介质的写入磁场。 极层包括轨道宽度限定部分和宽部分。 轨道宽度限定部分具有位于介质面向表面中并限定轨道宽度的端面。 宽部分的最大宽度大于轨道宽度，并且等于或大于在与面向介质的表面正交的方向上拍摄的宽部分的长度。 当线圈不产生磁场时，在轨道宽度限定部分的端面中，存在第一和第二区域，其中与面向介质的表面正交的磁化分量的方向相反。

公开(公告)号：US20060262454A1

公开(公告)日：2006-11-23

申请号：US11410043

申请日：2006-04-25

申请人： Kei Hirata ,  Kiyoshi Noguchi ,  Atsushi Yamaguchi

发明人： Kei Hirata ,  Kiyoshi Noguchi ,  Atsushi Yamaguchi

IPC分类号： G11B5/147 ,  H04R31/00

CPC分类号： G11B5/3163 ,  G11B5/3143 ,  Y10T29/49021 ,  Y10T29/49048

摘要： The present invention provides a thin film magnetic head capable of satisfying both assurance of recording performance and assurance of reproduction performance. In the case where a lower magnetic layer is formed of an iron cobalt alloy (for example, Fe65Co35) which contains iron in a range of 60 at % to 80 at % and has extremely high saturation magnetic flux density of 2.4 T or higher, a head isolation layer formed of ruthenium (Ru) is provided between the lower magnetic layer and an upper read shield layer portion. As compared with the case where the head isolation layer is not provided between the lower magnetic layer and the upper read shield layer portion, the strength of a recording magnetic field increases and a reproduction output of an MR element is stabilized.

摘要翻译： 本发明提供了能够满足记录性能的保证和再现性能的保证的薄膜磁头。 在下面的磁性层由铁含量在60％至80％范围内的铁钴合金（例如，Fe 65 N 3+ 35）形成的情况下 at％，并且具有2.4T以上的极高饱和磁通密度，在下磁性层和上部读屏蔽层部分之间设置由钌（Ru）形成的磁头隔离层。 与在下部磁性层和上部读取屏蔽层部分之间没有设置磁头隔离层的情况相比，记录磁场的强度增加，MR元件的再现输出稳定。

公开(公告)号：US5752141A

公开(公告)日：1998-05-12

申请号：US796401

申请日：1997-02-06

申请人： Masayuki Nishimura ,  Yuusaku Hashimoto ,  Takeshi Okoshi ,  Yoshifumi Ozaki ,  Katsumi Harumoto ,  Hideo Nagura ,  Toshio Uchida ,  Kei Hirata ,  Atsuyuki Kitamura ,  Ikutaroh Nagatsuka

发明人： Masayuki Nishimura ,  Yuusaku Hashimoto ,  Takeshi Okoshi ,  Yoshifumi Ozaki ,  Katsumi Harumoto ,  Hideo Nagura ,  Toshio Uchida ,  Kei Hirata ,  Atsuyuki Kitamura ,  Ikutaroh Nagatsuka

IPC分类号： G03G15/01 ,  G03G15/08

CPC分类号： G03G15/0126 ,  G03G2215/0177

摘要： A rotating type developing apparatus, having a plurality of developing devices which convey developer, which at least includes toner and carrier, to a developing roll while accommodating and circulating the developer; and a rotating body which holds and rotates the plurality of developing devices, in a rotating type developing apparatus in which the plurality of developing devices successively oppose a photosensitive drum due to the rotation of the rotating body so as to form a multicolor image, the apparatus having developer supplying equipment which supplies the developer to the developing devices; and collecting equipment which collects excess developer within the developing devices due to the rotation of the rotating body.

摘要翻译： 一种旋转式显影装置，具有多个显影装置，其将显影剂至少包括调色剂和载体输送到显影辊，同时容纳和循环显影剂; 以及在旋转式显影装置中保持和旋转多个显影装置的旋转体，其中多个显影装置由于旋转体的旋转而依次与感光鼓相对以形成多色图像，该装置 具有向显影装置供应显影剂的显影剂供应设备; 以及由于旋转体的旋转而收集显影装置内的多余显影剂的收集设备。