专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20160148627A1 SPIN TORQUE OSCILLATOR WITH LOW MAGNETIC MOMENT AND HIGH PERPENDICULAR MAGNETIC ANISOTROPY MATERIAL 有权
标题翻译：旋转扭矩振荡器，具有低磁性和高次磁性各向异性材料
公开(公告)号：US20160148627A1
公开(公告)日：2016-05-26
申请号：US14548853
申请日：2014-11-20
申请人： HGST Netherlands B.V.
发明人： Keiichi NAGASAKA , Yo SATO , Masashige SATO , Susumu OKAMURA , Masato SHIIMOTO , Masukazu IGARASHI
IPC分类号： G11B5/35 , H03B15/00 , G11B5/17
CPC分类号： G11B5/35 , G11B5/314 , G11B5/607 , G11B2005/0024
摘要： Embodiments disclosed herein generally relate to a magnetic disk device employing a MAMR head. The MAMR head includes an STO. The STO comprises an underlayer, an SPL, an interlayer, an FGL, and a capping layer. The SPL is comprised of a high perpendicular magnetic anisotropy material. The SPL has a large effective perpendicular magnetic anisotropy field, and the SPL has a lower magnetic moment than the FGL. An applied current is adapted to flow in a direction from the FGL to the SPL resulting in the magnetization direction of the SPL being almost perpendicular to the FGL and anti-parallel to a head-gap magnetic field due to a relation between a first spin torque directed from the SPL to the FGL and a second spin torque directed from the FGL to the SPL.
摘要翻译：本文公开的实施例通常涉及采用MAMR头的磁盘装置。 MAMR头包括STO。 STO包括底层，SPL，中间层，FGL和覆盖层。 SPL由高垂直磁各向异性材料组成。 SPL具有大的有效垂直磁各向异性场，SPL具有比FGL低的磁矩。施加的电流适于沿着从FGL到SPL的方向流动，导致SPL的磁化方向几乎垂直于FGL，并且由于第一自旋转矩之间的关系而与头间隙磁场反平行从SPL引导到FGL，以及从FGL指向SPL的第二自旋扭矩。

22. 发明授权

US09336798B1 Magnetic head for perpendicular magnetic recording including a main pole with a lower protrusion 有权
标题翻译：用于垂直磁记录的磁头，包括具有下凸起的主极
公开(公告)号：US09336798B1
公开(公告)日：2016-05-10
申请号：US14567590
申请日：2014-12-11
申请人： Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Yukinori Ikegawa
发明人： Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Yukinori Ikegawa
IPC分类号： G11B5/187 , G11B5/127 , G11B5/17 , G11B5/31
CPC分类号： G11B5/1278 , G11B5/02 , G11B5/17 , G11B5/187 , G11B5/3116 , G11B5/315 , G11B5/3163 , G11B5/3169
摘要： A main pole includes a main body and a lower protrusion. The lower protrusion is located at a distance from a medium facing surface. The main body includes a front portion and a rear portion. The front portion has a first side surface and a second side surface. The lower protrusion has a third side surface and a fourth side surface. A first side shield has a first sidewall opposed to the first side surface. A second side shield has a second sidewall opposed to the second side surface. A bottom shield includes a receiving section. The receiving section has a third sidewall opposed to the third side surface, and a fourth sidewall opposed to the fourth side surface. The receiving section and the lower protrusion are formed in a self-aligned manner by using the first and second side shields.
摘要翻译：主杆包括主体和下突起。下突出部位于与面向介质的表面相距一定距离处。主体包括前部和后部。前部具有第一侧表面和第二侧表面。下突起具有第三侧表面和第四侧表面。第一侧屏蔽具有与第一侧表面相对的第一侧壁。第二侧屏蔽具有与第二侧表面相对的第二侧壁。底部屏蔽包括接收部分。接收部分具有与第三侧表面相对的第三侧壁和与第四侧表面相对的第四侧壁。通过使用第一和第二侧面屏蔽件以自对准的方式形成接收部分和下部突出部。

23. 发明授权

US09286918B1 Write head with coil structure aligned with yoke 有权
公开(公告)号：US09286918B1
公开(公告)日：2016-03-15
申请号：US14798998
申请日：2015-07-14
申请人： Seagate Technology LLC
发明人： Jianhua Xue , Jiaoming Qiu , Kirill Rivkin , Huaqing Yin , John Wolf , Yonghua Chen
IPC分类号： G11B5/17 , G11B5/31
CPC分类号： G11B5/17 , G11B5/1278 , G11B5/3116 , G11B5/3123 , G11B5/313
摘要： A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip.

24. 发明授权

US09218835B1 Thermally-assisted magnetic recording head including a heat sink 有权
标题翻译：热辅助磁记录头包括散热片
公开(公告)号：US09218835B1
公开(公告)日：2015-12-22
申请号：US14475090
申请日：2014-09-02
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Yukinori Ikegawa , Seiichiro Tomita , Hideo Mamiya
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Yukinori Ikegawa , Seiichiro Tomita , Hideo Mamiya
IPC分类号： G11B11/00 , G11B5/48 , G11B5/00 , G11B5/17 , G11B5/31 , G11B5/60
CPC分类号： G11B5/4866 , G11B5/17 , G11B5/3133 , G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a main pole and a heat sink. The heat sink includes two first portions and two second portions. The two first portions are located on opposite sides of the main pole in the track width direction and are each spaced from the main pole. The two second portions are located between the main pole and the two first portions. The main pole and the two first portions are each formed of a magnetic metal. The two second portions are formed of a nonmagnetic metal.
摘要翻译：热辅助磁记录头包括主极和散热器。散热器包括两个第一部分和两个第二部分。两个第一部分位于主磁极的轨道宽度方向的相对侧上，并且与主极分开。两个第二部分位于主极和两个第一部分之间。主极和两个第一部分各自由磁性金属形成。两个第二部分由非磁性金属形成。

25. 发明授权

US09153254B1 Unbalanced data writer coil 有权
标题翻译：不平衡数据写入线圈
公开(公告)号：US09153254B1
公开(公告)日：2015-10-06
申请号：US14333310
申请日：2014-07-16
申请人： Seagate Technology LLC
发明人： Kirill Rivkin , Mourad Benakli , Huaqing Yin
IPC分类号： G11B5/127 , G11B5/17
CPC分类号： G11B5/17 , G11B5/1278 , G11B5/3116 , G11B5/3123 , G11B5/6082
摘要： A data writer may be configured with at least a write pole and a continuous coil with the continuous coil having a first turn with a first cross-sectional shape and a second turn with a second cross-sectional shape that differs from the first cross-sectional shape. The second turn may be positioned proximal a leading edge of the write pole and an air bearing surface while the first turn is positioned distal the air bearing surface.
摘要翻译：数据写入器可以被配置为具有至少写入磁极和连续线圈，其中连续线圈具有具有第一横截面形状的第一匝和具有与第一横截面不同的第二横截面形状的第二匝形状。第二转可以位于书写杆的前缘附近和空气轴承表面，同时第一转向位于空气轴承表面的远侧。

26. 发明申请

US20150243303A1 Magnetic Storage Medium Comprised of Magnetic Nanoparticles Contained Within Nanotubes 有权
标题翻译：包含在纳米管内的磁性纳米颗粒的磁性存储介质
公开(公告)号：US20150243303A1
公开(公告)日：2015-08-27
申请号：US14710173
申请日：2015-05-12
申请人： SIGMA PRO LTD. LLC
发明人： Tyson York Winarski
IPC分类号： G11B5/17
CPC分类号： G11B5/17 , B82Y10/00 , G11B5/1278 , G11B5/65 , G11B5/706 , G11B5/746 , G11B5/78 , G11B5/82 , Y10S977/943 , Y10T29/49
摘要： A magnetic storage medium is formed of magnetic nanoparticles that are encapsulated within nanotubes (e.g., carbon nanotubes).
摘要翻译：磁性存储介质由包封在纳米管（例如碳纳米管）内的磁性纳米颗粒形成。

27. 发明授权

US09042052B1 Magnetic writer having a partially shunted coil 有权
标题翻译：具有部分分流线圈的磁性写入器
公开(公告)号：US09042052B1
公开(公告)日：2015-05-26
申请号：US14312635
申请日：2014-06-23
申请人： Western Digital (Fremont), LLC
发明人： El-Amine Salhi , Tao Pan , Zhigang Bai , Donghong Li , Yan Chen , Neil D. Knutson
IPC分类号： G11B5/17
CPC分类号： G11B5/3123
摘要： A method and system provide a magnetic transducer having an air-bearing surface (ABS). The magnetic transducer includes a main pole and at least one coil for energizing the main pole. The coil(s) have a number of turns. The magnetic transducer also includes at least one shunt coupled to at least one of the number of turns. At least one remaining turn of the number of turns carries a current. The shunt(s) carry a portion of the current from the shunted turn of the number of turns. Thus, the coil(s) have an effective number of turns is less than the number of turns.
摘要翻译：一种方法和系统提供具有空气轴承表面（ABS）的磁换能器。磁换能器包括主极和至少一个用于激励主极的线圈。线圈有多圈。磁换能器还包括至少一个与至少一个匝数耦合的分流器。匝数至少有一个剩下的圈数带有电流。分流器承载来自匝数分流的电流的一部分。因此，线圈的有效匝数小于匝数。

28. 发明授权

US09007721B2 Microwave assisted magnetic recording head having spin torque oscillator, and magnetic recording apparatus 有权
标题翻译：具有自旋扭矩振荡器的微波辅助磁记录头和磁记录装置
公开(公告)号：US09007721B2
公开(公告)日：2015-04-14
申请号：US13957464
申请日：2013-08-02
申请人： Hitachi, Ltd.
发明人： Yo Sato , Katsuro Watanabe , Keizou Katou , Masukazu Igarashi
IPC分类号： G11B5/31 , G11B5/17 , G11B5/02 , G11B5/00
CPC分类号： G11B5/17 , G11B5/3146 , G11B2005/0024
摘要： A spin torque oscillator is provided which is adapted to high data transfer rates and which can perform assisted magnetic recording of sufficient magnitude. A spin torque oscillator is provided with a stacked spin injection layer and a high frequency magnetic field generation layer. The stacked spin injection layer has a stacked structure in which a first magnetic layer, a coupling layer, and a second magnetic layer are stacked in the order mentioned from a far side as viewed from the high frequency magnetic field generation layer. Magnetization of the first magnetic layer and magnetization of the second magnetic layer are coupled antiparallel to each other. A polarity of the magnetization of the second magnetic layer is reversed temporally earlier than a magnetic field polarity reversal of a leakage magnetic field from the main magnetic pole.
摘要翻译：提供了一种自适应转矩振荡器，适用于高数据传输速率，可以执行足够大的辅助磁记录。自旋扭矩振荡器设置有堆叠的自旋注入层和高频磁场产生层。叠层自旋注入层具有层叠结构，其中从高频磁场产生层观察，从远侧按顺序堆叠第一磁性层，耦合层和第二磁性层。第一磁性层的磁化和第二磁性层的磁化彼此反平行地耦合。第二磁性层的磁化的极性在时间上比来自主磁极的漏磁场的磁场极性反转更早。

29. 发明授权

US08947834B2 Method and apparatus for chemical-mechanical polishing 有权
标题翻译：化学机械抛光方法和装置
公开(公告)号：US08947834B2
公开(公告)日：2015-02-03
申请号：US13797381
申请日：2013-03-12
申请人： Seagate Technology LLC
发明人： Eric Walter Singleton , Shaun Eric McKinlay , Stacey Christine Wakeham
IPC分类号： G11B5/17
CPC分类号： G11B5/332 , G11B5/3163 , G11B5/3169 , G11B5/3903 , G11B5/398 , Y10T428/1164
摘要： In accordance with certain embodiments, a method can be utilized that includes depositing a backfill material layer over a reader stack; depositing a chemical-mechanical-polishing stop layer above the layer of backfill material; and depositing a sacrificial layer on top of the chemical-mechanical-polishing stop layer.
摘要翻译：根据某些实施例，可以使用包括在读取器堆叠上沉积回填材料层的方法; 在所述回填材料层之上沉积化学机械抛光停止层; 以及在所述化学机械抛光停止层的顶部上沉积牺牲层。

30. 发明授权

US08830628B1 Method and system for providing a perpendicular magnetic recording head 有权
标题翻译：用于提供垂直磁记录头的方法和系统
公开(公告)号：US08830628B1
公开(公告)日：2014-09-09
申请号：US13779529
申请日：2013-02-27
申请人： Western Digital (Fremont), LLC
发明人： Hong Zhang , Ge Yi , Lei Wang , Dujiang Wan , Guanghong Luo , Xiaohai Xiang
IPC分类号： G11B5/17
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163 , Y10T29/4902 , Y10T29/49021 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method and system for providing a magnetic recording transducer having a pole are disclosed. The pole has side(s), a bottom, and a top wider than the bottom. The method and system include providing at least one side gap layer that covers the side(s) and the top of the pole. At least one sacrificial layer is provided on the side gap layer(s). The sacrificial layer(s) are wet etchable and cover the side gap layer(s). The magnetic recording transducer is planarized after the sacrificial layer(s) are provided. Thus, a portion of the side gap and sacrificial layer(s) is removed. A remaining portion of the sacrificial layer(s) is thus left. The method and system also include wet etching the sacrificial layer(s) to remove the remaining portion of the sacrificial layer(s). A wrap around shield is provided after the remaining portion of the sacrificial layer(s) is removed.
摘要翻译：公开了一种用于提供具有极点的磁记录换能器的方法和系统。电极具有侧面，底部和顶部比底部更宽。该方法和系统包括提供覆盖极的侧面和顶部的至少一个侧面间隙层。在侧间隙层上提供至少一个牺牲层。牺牲层是可湿蚀刻的并且覆盖侧间隙层。在提供牺牲层之后，磁记录传感器被平坦化。因此，侧面间隙和牺牲层的一部分被去除。因此留下牺牲层的剩余部分。该方法和系统还包括湿蚀刻牺牲层以去除牺牲层的剩余部分。在除去牺牲层的剩余部分之后提供环绕护罩。

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