专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US07573686B2 Thin-film magnetic head including low-resistance TMR element 有权
标题翻译：薄膜磁头包括低电阻TMR元件
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。

52. 发明授权

US07542233B2 Perpendicular magnetic recording element, thin film magnetic head, magnetic head device, and magnetic recording/reproducing apparatus for reducing deleterious effects of external magnetic fields 有权
标题翻译：垂直磁记录元件，薄膜磁头，磁头装置和用于减少外部磁场的有害影响的磁记录/再现装置
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。

53. 发明申请

US20080056771A1 Image forming member, toner removing apparatus, developing apparatus, and image forming apparatus 有权
标题翻译：图像形成部件，调色剂除去装置，显影装置和图像形成装置
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。

54. 发明申请

US20070165330A1 Soft magnetic film and method of manufacturing same, thin-film magnetic head and method of manufacturing same, head arm assembly and magnetic disk drive 有权
标题翻译：软磁膜及其制造方法，薄膜磁头及其制造方法，头臂组件和磁盘驱动器
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。

55. 发明申请

US20070139817A1 Magnetic head for perpendicular magnetic recording, head gimbal assembly, head arm assembly and magnetic disc drive 有权
标题翻译：用于垂直磁记录的磁头，磁头万向架组件，磁头臂组件和磁盘驱动器
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。

56. 发明申请

US20060262454A1 Thin film magnetic head, method of manufacturing the same, and magnetic recording apparatus 有权
标题翻译：薄膜磁头，其制造方法和磁记录装置
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。

57. 发明授权

US5752141A Rotating type developing apparatus 失效
标题翻译：旋转型显影装置
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。

58. 发明授权

US10297277B1 Magnetic head including a coil and a magnetic path forming section 有权
公开(公告)号：US10297277B1
公开(公告)日：2019-05-21
申请号：US16123225
申请日：2018-09-06
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Atsushi Yamaguchi , Kei Hirata
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Atsushi Yamaguchi , Kei Hirata
IPC分类号： G11B5/127 , G11B5/31
摘要： A magnetic head includes a coil, and a magnetic path forming section for defining a first space for a portion of the coil to pass through. The magnetic path forming section includes a core section. The coil includes a first winding portion and a second winding portion connected in series. The first winding portion includes one or two first coil elements extending to pass through the first space, and extends once or twice around the entire perimeter of the core section. The second winding portion does not pass through the first space, and extends less than once around the entire perimeter of the core section to rotate n degrees about a center point of the core section, where n is greater than 270 and smaller than 360.

59. 发明授权

US08559133B2 Perpendicular magnetic write head and magnetic write device 有权
标题翻译：垂直写磁头和磁性写入装置
公开(公告)号：US08559133B2
公开(公告)日：2013-10-15
申请号：US12457089
申请日：2009-06-01
申请人： Kei Hirata , Takeo Kagami , Tatsuhiro Nojima , Hisayoshi Watanabe , Michitaka Nishiyama
发明人： Kei Hirata , Takeo Kagami , Tatsuhiro Nojima , Hisayoshi Watanabe , Michitaka Nishiyama
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/315
摘要： A perpendicular magnetic write head includes: a magnetic pole having an end face on an air bearing surface; and side shield layers each having an end face on the air bearing surface, and arranged on both sides, in a write track width direction, of the magnetic pole with a side gap in between. The end face of the magnetic pole has a geometry in which a width at a trailing edge is larger than a width at a leading edge. Relationship D1
摘要翻译：垂直磁写头包括：磁极，其在空气轴承表面上具有端面; 以及侧面屏蔽层，其各自具有位于空气轴承表面上的端面，并且布置在磁极的写入磁道宽度方向的两侧，其间具有侧面间隙。磁极的端面具有几何形状，其中后缘处的宽度大于前缘处的宽度。在空气轴承表面中满足关系D1 = D2，其中D1是后缘处的侧间隙的间隙长度，D2是前缘处的侧间隙的间隙长度 D3是在后缘和前缘之间的任何位置处的侧间隙的间隙长度。

60. 发明授权

US08462594B1 Thermally-assisted magnetic recording head capable of preventing propagated light being absorbed by magnetic pole 有权
标题翻译：能够防止传播的光被磁极吸收的热辅助磁记录头
公开(公告)号：US08462594B1
公开(公告)日：2013-06-11
申请号：US13405893
申请日：2012-02-27
申请人： Susumu Aoki , Kosuke Tanaka , Tetsuya Roppongi , Kei Hirata , Takeshi Tsutsumi
发明人： Susumu Aoki , Kosuke Tanaka , Tetsuya Roppongi , Kei Hirata , Takeshi Tsutsumi
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a medium facing surface, a magnetic pole, a waveguide including a core and a cladding, and a plasmon generator. The magnetic pole is located forward of the core in the direction of travel of a magnetic recording medium. The plasmon generator is disposed between the core and the magnetic pole. The core has an evanescent light generating surface facing toward the plasmon generator. The plasmon generator has a front end face located in the medium facing surface, a flat surface facing toward the'evanescent light generating surface, and first and second side surfaces that are at a distance from each other and are located farther from the evanescent light generating surface than is the flat surface.
摘要翻译：一种热辅助磁记录头包括面向介质的表面，磁极，包括芯和包层的波导，以及等离子体激元发生器。磁极位于磁芯的前方，位于磁记录介质的行进方向。等离子体发生器设置在芯和磁极之间。核心具有面向等离子体发生器的ev逝光产生表面。等离子体激元发生器具有位于介质面向表面中的前端面，面向朝向光生成表面的平坦表面，以及彼此相距一定距离并且远离产生ev逝光的第一和第二侧表面表面比平坦的表面。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式