公开(公告)号：US20130215725A1

公开(公告)日：2013-08-22

申请号：US13402318

申请日：2012-02-22

申请人： Kei HIRATA ,  Kosuke Takana ,  Tsutomu Chou ,  Susumu Aoki ,  Makoto Isogai ,  Tetsuya Roppongi

发明人： Kei HIRATA ,  Kosuke Takana ,  Tsutomu Chou ,  Susumu Aoki ,  Makoto Isogai ,  Tetsuya Roppongi

IPC分类号： G11B13/04 ,  G11B5/115 ,  G11B7/1387

CPC分类号： G11B5/313 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/3146 ,  G11B5/6088 ,  G11B2005/0021

摘要： The present invention provides a thermally assisted magnetic head with improved recording performance. The thermally assisted magnetic head includes a recording element and a near-field light generating element. The recording element includes a main pole appearing on a medium-facing surface, and a bit inversion starting region intended to be a maximum recording magnetic field generating position is formed at a leading edge of the main pole. The near-field light generating element is located on a leading side of the main pole and capable of creating a heating spot due to a near-field light on a near-field light generating end face appearing on the medium-facing surface. The bit inversion starting region is located within one-half of a diameter of the heating spot from a center of the heating spot.

摘要翻译： 本发明提供了具有改进的记录性能的热辅助磁头。 热辅助磁头包括记录元件和近场光产生元件。 记录元件包括出现在面向中间的表面上的主极，并且在主极的前缘形成旨在成为最大记录磁场产生位置的位反转起始区。 近场光产生元件位于主极的前导侧，并且能够在出现在面向中间的表面上的近场光产生端面上产生由于近场光产生的加热点。 位反转起始区域位于加热点的直径从加热点的中心的一半的范围内。

公开(公告)号：US20140043948A1

公开(公告)日：2014-02-13

申请号：US13568542

申请日：2012-08-07

申请人： Kei HIRATA ,  Ryo HOSOI ,  Keita KAWAMORI ,  Tetsuya ROPPONGI

发明人： Kei HIRATA ,  Ryo HOSOI ,  Keita KAWAMORI ,  Tetsuya ROPPONGI

IPC分类号： H01S3/00 ,  G11B13/04

CPC分类号： G11B13/08 ,  G02B5/008 ,  G02B6/1226 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T428/1171 ,  Y10T428/1193

摘要： A plasmon-generator of the invention is configured to include a first configuration member including a near-field light generating end surface; and a second configuration member joined and integrated with the first configuration member and not including the near-field light generating end surface. The first configuration member is configured to contain Au as a primary component and to contain any one or more elements selected from a group of Co, Fe, Sb, Nb, Zr, Ti, Hf, and Ta, and is configured so that a content percentage X1 of the contained element is within a range between 0.2 at % or more and 2.0 at % or less. Thereby, thermostability, optical characteristic, and the process stability are satisfied. Also, heat dissipation and heat generation suppression effect are extremely superior.

摘要翻译： 本发明的等离子体发生器被构造成包括包括近场光产生端面的第一配置构件; 以及第二构造构件，其与所述第一构造构件接合并且一体化，并且不包括所述近场光产生端面。 第一配置构件被配置为包含Au作为主要成分并且包含选自Co，Fe，Sb，Nb，Zr，Ti，Hf和Ta中的任何一种或多种元素，并且被配置为使得含量 所含有的元素的X1的比例在0.2at％以上且2.0at％以下的范围内。 由此，满足热稳定性，光学特性和工艺稳定性。 此外，散热和发热抑制效果非常优异。

公开(公告)号：US20130229730A1

公开(公告)日：2013-09-05

申请号：US13412109

申请日：2012-03-05

申请人： Kei HIRATA ,  Kosuke TANAKA ,  Tetsuya ROPPONGI

发明人： Kei HIRATA ,  Kosuke TANAKA ,  Tetsuya ROPPONGI

IPC分类号： G11B5/48 ,  G11B5/858 ,  G11B5/33

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T428/11

摘要： A thermally-assisted magnetic recording head includes a magnetic pole and a heating element. The magnetic pole has a front end face located in a medium facing surface. The magnetic pole forms on a track a distribution of write magnetic field strength that peaks at a first position on the track. The heating element forms on the track a distribution of temperature that peaks at a second position on the track. The first position is located on the trailing side relative to the second position. The front end face of the magnetic pole has a main portion and first and second extended portions. The first and second extended portions are extended in the track width direction from the main portion at positions on the leading side relative to the center of the main portion in the direction of travel of a magnetic recording medium.

摘要翻译： 一种热辅助磁记录头包括磁极和加热元件。 磁极具有位于介质相对表面中的前端面。 磁道在轨道上形成写入磁场强度的分布，其在轨道上的第一位置处达到峰值。 加热元件在轨道上形成在轨道上的第二位置处峰值的温度分布。 第一位置位于相对于第二位置的后侧。 磁极的前端面具有主要部分和第一和第二延伸部分。 第一延伸部分和第二延伸部分在磁记录介质的行进方向上相对于主要部分的中心在前侧的位置处从主要部分在轨道宽度方向上延伸。

公开(公告)号：US20070297104A1

公开(公告)日：2007-12-27

申请号：US11766926

申请日：2007-06-22

申请人： Tomohito MIZUNO ,  Yoshihiro TSUCHIYA ,  Koji SHIMAZAWA ,  Kei HIRATA ,  Keita KAWAMORI

发明人： Tomohito MIZUNO ,  Yoshihiro TSUCHIYA ,  Koji SHIMAZAWA ,  Kei HIRATA ,  Keita KAWAMORI

IPC分类号： G11B5/012

CPC分类号： G01R33/093 ,  B82Y25/00 ,  B82Y40/00 ,  G11B5/3906 ,  H01F10/1936 ,  H01F10/3272 ,  H01F41/304 ,  H01L43/08 ,  H01L43/10 ,  H01L43/12 ,  Y10T29/49025 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048

摘要： A method for manufacturing a magnetic field detecting element having a free layer whose magnetization direction is variable depending on an external magnetic field and a pinned layer whose magnetization direction is fixed with respect to the external magnetic field, said free layer and said pinned layer being stacked with an electrically conductive, nonmagnetic spacer layer sandwiched therebetween, wherein sense current is configured to flow in a direction that is perpendicular to film planes of the magnetic field detecting element is provided. The method has the steps of: forming a spacer adjoining layer that is adjacent to said spacer layer, Heusler alloy layer, and a metal layer successively in this order; and forming either at least a part of said pinned layer or said free layer by heating said spacer adjoining layer, said Heusler alloy layer, and said metal layer. The spacer adjoining layer has a layer that is chiefly made of cobalt and iron. The Heusler alloy layer includes metal which is silver, gold, copper, palladium, or platinum, or an alloy thereof. The metal layer is made of silver, gold, copper, palladium, or platinum, or an alloy thereof.

摘要翻译： 一种制造磁场检测元件的方法，该磁场检测元件具有其磁化方向根据外部磁场而变化的自由层和相对于外部磁场的磁化方向固定的被钉扎层，所述自由层和所述被钉扎层被堆叠 其中夹在其间的导电的非磁性间隔层，其中感测电流被配置为在垂直于磁场检测元件的膜平面的方向上流动。 该方法具有如下步骤：依次形成与所述间隔层，Heusler合金层和金属层相邻的间隔物邻接层; 以及通过加热所述隔离物邻接层，所述Heusler合金层和所述金属层，形成所述被钉扎层或所述自由层的至少一部分。 间隔物邻接层具有主要由钴和铁制成的层。 Heusler合金层包括银，金，铜，钯或铂的金属或其合金。 金属层由银，金，铜，钯或铂或其合金制成。

公开(公告)号：US20120236431A1

公开(公告)日：2012-09-20

申请号：US13047304

申请日：2011-03-14

申请人： Kei HIRATA ,  Hiroshi KIYONO ,  Osamu NAKADA ,  Kenkichi ANAGAWA

发明人： Kei HIRATA ,  Hiroshi KIYONO ,  Osamu NAKADA ,  Kenkichi ANAGAWA

IPC分类号： G11B21/02 ,  G11B21/04

CPC分类号： G11B5/315 ,  G11B5/012 ,  G11B5/1278 ,  G11B5/3116

摘要： A magnetic disk device includes: a recording medium provided with a plurality of write tracks; a magnetic write head including a magnetic pole, side shields, and a leading shield, a distance from the magnetic pole to each of the side shields being maintained to be uniform with a gap layer therebetween, and a distance from the magnetic pole to the leading shield being maintained to be uniform with a gap layer therebetween; and a control section rotating the recording medium, and allowing magnetic information to be recorded on the recording medium while allowing the magnetic write head to travel in a direction from an inner write track toward an outer write track or in a direction from the outer write track toward the inner write track, across write tracks in the recording medium. With such a configuration, format efficiency may be improved, and a width of an erase band on a magnetic disk may be minimized. Therefore, surface recording density of a recording medium may be improved without reducing an effective write track width.

摘要翻译： 磁盘装置包括：设置有多个写入磁道的记录介质; 包括磁极，侧屏蔽和前屏蔽的磁写头，从磁极到每个侧屏的距离保持均匀，其间具有间隙层，并且从磁极到前导的距离 保持其间的间隙均匀的护罩; 以及控制部分，使记录介质旋转，并且允许磁信息被记录在记录介质上，同时允许磁性写入头沿着从内部写入磁道朝向外部写入磁道或从外部写入磁道的方向行进 朝向内部写入轨道，跨越记录介质中的写入轨迹。 利用这种配置，可以提高格式效率，并且可以使磁盘上的擦除带的宽度最小化。 因此，可以提高记录介质的表面记录密度，而不会降低有效的写入磁道宽度。

公开(公告)号：US20100061023A1

公开(公告)日：2010-03-11

申请号：US12208828

申请日：2008-09-11

申请人： Naoki OHTA ,  Kei HIRATA

发明人： Naoki OHTA ,  Kei HIRATA

IPC分类号： G11B5/127

CPC分类号： G11B5/3903 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/098 ,  G11B5/3909 ,  G11B5/398

摘要： A magnetic head device includes a magnetic head section having a first free layer with a magnetization orientation that is not previously defined but changes depending upon only external magnetic field applied, a second free layer with a magnetization orientation that is not previously defined but changes depending upon only external magnetic field applied, a nonmagnetic intermediate layer sandwiched between the first free layer and the second free layer, a first electrode layer stacked on a surface of the first free layer opposite to the nonmagnetic intermediate layer, and a second electrode layer stacked on a surface of the second free layer opposite to the nonmagnetic intermediate layer; a sense-current supply means for flowing a sense current across the first electrode layer and the second electrode layer of the magnetic head section; and a frequency divider circuit for dividing by two a frequency of an output signal produced across the first electrode layer and the second electrode layer of the magnetic head section.

摘要翻译： 磁头装置包括具有磁化取向的第一自由层的磁头部分，磁化取向不是预先限定的，而是仅根据所施加的外部磁场而改变，具有磁化取向的第二自由层未被预先限定，但是根据 仅施加外部磁场，夹在第一自由层和第二自由层之间的非磁性中间层，堆叠在与非磁性中间层相对的第一自由层的表面上的第一电极层和层叠在第一自由层上的第二电极层 第二自由层的表面与非磁性中间层相对; 感测电流供给装置，用于使检测电流流过磁头部分的第一电极层和第二电极层; 以及分频电路，用于除以在磁头部分的第一电极层和第二电极层两端产生的输出信号的两个频率。

公开(公告)号：US20090074468A1

公开(公告)日：2009-03-19

申请号：US12058880

申请日：2008-03-31

申请人： Naoya IWATA ,  Takashi SAKAMOTO ,  Akihide KAWAMURA ,  Kei HIRATA

发明人： Naoya IWATA ,  Takashi SAKAMOTO ,  Akihide KAWAMURA ,  Kei HIRATA

IPC分类号： G03G15/08

CPC分类号： G03G15/0853 ,  G03G15/0893 ,  G03G2215/0822

摘要： A developing device includes: a developer carrier; a first housing chamber; a second housing chamber; a first inflow portion; a first conveying member; a second conveying member; and a concentration detecting member.

摘要翻译： 显影装置包括：显影剂载体; 第一房屋; 第二容纳室; 第一流入部分; 第一输送构件; 第二输送构件; 和浓度检测部件。

公开(公告)号：US20120026629A1

公开(公告)日：2012-02-02

申请号：US12845349

申请日：2010-07-28

申请人： Kei HIRATA ,  Kenkichi Anagawa ,  Michitaka Nishiyama ,  Hideyuki Yatsu ,  Shin Narushima ,  Hisayoshi Watanabe ,  Tatsuhiro Nojima

发明人： Kei HIRATA ,  Kenkichi Anagawa ,  Michitaka Nishiyama ,  Hideyuki Yatsu ,  Shin Narushima ,  Hisayoshi Watanabe ,  Tatsuhiro Nojima

IPC分类号： G11B5/23 ,  G11B5/187 ,  G11B5/56

CPC分类号： G11B5/6082 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163

摘要： The present invention relates to a magnetic head, a manufacturing method therefor, a head assembly, and a magnetic recording/reproducing apparatus. According to the present invention, it includes a magnetic pole layer, a non-magnetic layer, a trailing gap layer, and a trailing shield layer. The magnetic pole layer has a pole tip exposed on a magnetic medium-facing surface. The non-magnetic layer is laid on the magnetic pole layer. The trailing shield layer is exposed on the magnetic medium-facing surface and laid over the magnetic pole layer and the non-magnetic layer with the trailing gap layer between. The magnetic pole layer and the non-magnetic layer have a continuous tapered face opposed to a lower side of the trailing shield layer. Moreover, the tapered face extends from a trailing edge of the pole tip at a constant inclination angle.

摘要翻译： 磁头及其制造方法技术领域本发明涉及一种磁头及其制造方法，磁头组件以及磁记录/重放装置。 根据本发明，它包括磁极层，非磁性层，后隙层和后屏蔽层。 磁极层具有暴露在面向磁介质的表面上的极尖。 非磁性层铺设在磁极层上。 后屏蔽层暴露在面向磁介质的表面上，并铺设在磁极层和非磁性层之间，后隙间隔在其间。 磁极层和非磁性层具有与后屏蔽层的下侧相对的连续锥形面。 此外，锥形面从极尖的后缘以恒定的倾斜角度延伸。

公开(公告)号：US20100098456A1

公开(公告)日：2010-04-22

申请号：US12422729

申请日：2009-04-13

申请人： Hirokazu MURASE ,  Kei HIRATA

发明人： Hirokazu MURASE ,  Kei HIRATA

IPC分类号： G03G15/00

CPC分类号： G03G15/0886 ,  G03G15/0872 ,  G03G15/0879

摘要： An accommodating vessel, which is detachably attached to a vessel receiving part of a casing of an image forming device to accommodate an image forming material, the accommodating vessel including: a vessel main body that includes a tubular part; a cover member that includes a fitted part; at least one positioned protrusion; and at least one positioned positioning protrusion, wherein the at least one positioned protrusion includes: a guide protrusion that extends in a rotating direction of the cover member; and a plurality of rotation stop protrusions that extends in opposite directions to each other relative to the guide protrusion along a pushing and pulling direction of the cover member, and Wherein the positioning protrusion includes a stop wall that abuts on the guide protrusion and the plurality of rotation stop protrusions of the at least one positioned protrusion to be stopped.

摘要翻译： 一种容纳容器，其可拆卸地附接到容纳图像形成装置的壳体的容纳部分以容纳成像材料的容器，所述容纳容器包括：容器主体，其包括管状部分; 盖构件，其包括装配部; 至少一个定位突起; 以及至少一个定位的定位突起，其中所述至少一个定位突起包括：引导突起，其沿所述盖构件的旋转方向延伸; 以及沿所述盖构件的推拉方向相对于所述引导突起彼此相反方向延伸的多个旋转止动突起，其中，所述定位突起包括抵接在所述引导突起上的止动壁， 所述至少一个定位突起的旋转止动凸起被停止。

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。