公开(公告)号：US09099140B2

公开(公告)日：2015-08-04

申请号：US12630707

申请日：2009-12-03

申请人： Hiroaki Nemoto ,  Hiroyuki Nakagawa ,  Takayuki Ichihara ,  Masae Suzuki

发明人： Hiroyuki Suzuki ,  Hiroaki Nemoto ,  Hiroyuki Nakagawa ,  Takayuki Ichihara

IPC分类号： G11B11/00 ,  G11B5/667 ,  G11B5/66 ,  G11B5/73

CPC分类号： G11B5/667 ,  G11B5/66 ,  G11B5/7325

摘要： In order to provide a thermal energy assisted medium capable of improving anti-sliding reliability over long periods of time in low flying head conditions, while also maintaining a high SNR, a unique medium is proposed. A soft magnetic layer is formed on a substrate, a soft magnetic layer is formed thereon via a non-magnetic intermediate layer, and an intermediate layer, a crystal oriented control intermediate layer, an artificial lattice intermediate layer having an artificial lattice film in which a first layer comprising Co and a second layer comprising Pt and Pd are laminated repeatedly to form a recording layer, and a cap layer and an lubricating layer are formed. The concentration of Pd comprising the second layer is from about 20 atomic % to about 40 atomic %. Other mediums and systems are also described.

摘要翻译： 为了提供能够在低飞行头条件下长时间提高抗滑动可靠性的热能辅助介质，同时还保持高SNR，提出了独特的介质。 在基板上形成软磁性层，通过非磁性中间层，中间层，取向晶体管的中间层，具有人造晶格膜的人造晶格中间层，在其上形成软磁性层，其中， 重复层叠包括Co和包含Pt和Pd的第二层的第一层以形成记录层，并且形成覆盖层和润滑层。 包含第二层的Pd的浓度为约20原子％至约40原子％。 还描述了其它介质和系统。

公开(公告)号：US20100165500A1

公开(公告)日：2010-07-01

申请号：US12630707

申请日：2009-12-03

申请人： Hiroyuki Suzuki ,  Masae Suzuki ,  Hiroaki Nemoto ,  Hiroyuki Nakagawa ,  Takayuki Ichihara

发明人： Hiroyuki Suzuki ,  Masae Suzuki ,  Hiroaki Nemoto ,  Hiroyuki Nakagawa ,  Takayuki Ichihara

IPC分类号： G11B5/02 ,  G11B5/667

CPC分类号： G11B5/667 ,  G11B5/66 ,  G11B5/7325

摘要： In order to provide a thermal energy assisted medium capable of improving anti-sliding reliability over long periods of time in low flying head conditions, while also maintaining a high SNR, a unique medium is proposed. A soft magnetic layer is formed on a substrate, a soft magnetic layer is formed thereon via a non-magnetic intermediate layer, and an intermediate layer, a crystal oriented control intermediate layer, an artificial lattice intermediate layer having an artificial lattice film in which a first layer comprising Co and a second layer comprising Pt and Pd are laminated repeatedly to form a recording layer, and a cap layer and an lubricating layer are formed. The concentration of Pd comprising the second layer is from about 20 atomic % to about 40 atomic %. Other mediums and systems are also described.

摘要翻译： 为了提供能够在低飞行头条件下长时间提高抗滑动可靠性的热能辅助介质，同时还保持高SNR，提出了独特的介质。 在基板上形成软磁性层，经由非磁性中间层形成软磁性层，中间层，取向晶体管的中间层，具有人造晶格膜的人造晶格中间层，其中， 重复层叠包括Co和包含Pt和Pd的第二层的第一层以形成记录层，并且形成覆盖层和润滑层。 包含第二层的Pd的浓度为约20原子％至约40原子％。 还描述了其它介质和系统。

公开(公告)号：US08169728B2

公开(公告)日：2012-05-01

申请号：US12630728

申请日：2009-12-03

申请人： Hiroaki Nemoto ,  Hiroyuki Suzuki ,  Masae Suzuki, legal representative ,  Miki Hara ,  Yoshio Suzuki

发明人： Hiroaki Nemoto ,  Hiroyuki Suzuki ,  Miki Hara ,  Yoshio Suzuki

IPC分类号： G11B5/09 ,  G11B5/596 ,  G11B5/82

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/59616 ,  G11B5/743 ,  G11B5/855

摘要： To avoid the occurrence of a recording error by suppressing the influence that a magneto-static interaction acting between the pattern dots exerts on a recording process and expand a margin for recording synchronization timing lag or tracking misregistration on the pattern dot. Each pattern dot has a structure in which a plurality of parts having different magnetization reversal fields are bonded with exchange interaction in the in-plane direction of a medium, substrate. The positional relationship between the parts having different magnetization reversal fields is substantially coincident between the adjacent pattern dots, which are arranged to have a gradient of magnetization reversal field in a track direction or track transverse direction. Further, the recording is performed by adapting a gradient of recording magnetic field to the gradient of magnetization reversal field. Other methods and systems are described as well.

摘要翻译： 通过抑制作用在图形点之间的磁静电相互作用在记录处理上并且扩大用于记录同步定时滞后或跟踪图案点上的重合失调的余量的影响，避免了记录错误的发生。 每个图案点具有其中具有不同磁化反转场的多个部分在介质，衬底的面内方向上以交换相互作用结合的结构。 具有不同的磁化反转场的部分之间的位置关系在相邻的图形点之间基本一致，相邻的图形点被布置成在轨道方向或轨道横向方向上具有磁化反转场的梯度。 此外，通过使记录磁场的梯度适应于磁化反转场的梯度来进行记录。 还描述了其他方法和系统。

公开(公告)号：US20100142084A1

公开(公告)日：2010-06-10

申请号：US12630728

申请日：2009-12-03

申请人： Hiroaki Nemoto ,  Hiroyuki Suzuki ,  Masae Suzuki ,  Miki Hara ,  Yoshio Suzuki

发明人： Hiroaki Nemoto ,  Hiroyuki Suzuki ,  Masae Suzuki ,  Miki Hara ,  Yoshio Suzuki

IPC分类号： G11B5/596 ,  G11B5/82

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/59616 ,  G11B5/743 ,  G11B5/855

摘要： To avoid the occurrence of a recording error by suppressing the influence that a magneto-static interaction acting between the pattern dots exerts on a recording process and expand a margin for recording synchronization timing lag or tracking misregistration on the pattern dot. Each pattern dot has a structure in which a plurality of parts having different magnetization reversal fields are bonded with exchange interaction in the in-plane direction of a medium, substrate. The positional relationship between the parts having different magnetization reversal Fields is substantially coincident between the adjacent pattern dots, which are arranged to have a gradient of magnetization reversal field in a track direction or track transverse direction. Further, the recording is performed by adapting a gradient of recording magnetic field to the gradient of magnetization reversal field. Other methods and systems are described as well.

摘要翻译： 通过抑制作用在图形点之间的磁静电相互作用在记录处理上并且扩大用于记录同步定时滞后或跟踪图案点上的重合失调的余量的影响，避免了记录错误的发生。 每个图案点具有其中具有不同磁化反转场的多个部分在介质，衬底的面内方向上以交换相互作用结合的结构。 具有不同的磁化反转场的部分之间的位置关系在相邻的图案点之间基本上一致，相邻的图形点被布置成具有轨道方向或轨道横向方向上的磁化反转场的梯度。 此外，通过使记录磁场的梯度适应于磁化反转场的梯度来进行记录。 还描述了其他方法和系统。

公开(公告)号：US20100061014A1

公开(公告)日：2010-03-11

申请号：US12556492

申请日：2009-09-09

申请人： Sarbanoo Das ,  Hiroyuki Suzuki ,  Masae Suzuki

发明人： Sarbanoo Das ,  Hiroyuki Suzuki ,  Masae Suzuki

IPC分类号： G11B5/37

CPC分类号： G11B5/374 ,  G11B5/1278 ,  G11C11/18

摘要： According to one embodiment, magnetic reproducing element for detecting a magnetic field from a magnetic recording medium comprises a sensor film including a perpendicular magnetization film having a magnetization easy axis in a direction perpendicular to a film plane, wherein magnetization in the sensor film tilts upward or downward in an element height direction from the magnetization easy axis while no magnetic field is applied from the magnetic recording medium, and change in anomalous Hall voltage generated in the sensor film is detected, thereby allowing the magnetic field applied from the magnetic recording medium to be detected. Other magnetic reproducing elements and magnetic heads employing magnetic reproducing elements are described as well.

摘要翻译： 根据一个实施例，用于检测来自磁记录介质的磁场的磁再现元件包括传感器膜，其包括在垂直于膜平面的方向上具有易磁化轴的垂直磁化膜，其中传感器膜中的磁化向上倾斜或 在磁化容易轴的元件高度方向上向下，同时没有从磁记录介质施加磁场，并且检测到传感器膜中产生的异常霍尔电压的变化，从而允许从磁记录介质施加的磁场为 检测到。 还描述了采用磁再现元件的其它磁再现元件和磁头。

公开(公告)号：US20100302682A1

公开(公告)日：2010-12-02

申请号：US12777982

申请日：2010-05-11

申请人： Tatsuya Hinoue ,  Hiroshi Yakushiji ,  Toshinori Ono ,  Hiroyuki Suzuki ,  Hiroshi Inaba ,  Masae Suzuki

发明人： Tatsuya Hinoue ,  Hiroshi Yakushiji ,  Toshinori Ono ,  Hiroyuki Suzuki ,  Hiroshi Inaba ,  Masae Suzuki

IPC分类号： G11B5/82

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/65 ,  G11B5/743 ,  G11B5/855

摘要： According to one embodiment, a magnetic recording medium includes a magnetic recording layer formed above a substrate, the magnetic recording layer being comprised of an alloy having a crystal structure, recording tracks formed on the magnetic recording layer in nearly concentric circular shapes, wherein the recording tracks are comprised of a first alloy composition having a crystal structure, and track separation regions formed between the recording tracks on the magnetic recording layer, wherein the track separation regions are comprised of a second alloy composition having a crystal structure, the second alloy composition comprising the first alloy composition and a non-magnetic element, wherein a lattice constant of the second alloy composition is greater than a lattice constant of the first alloy composition. In other embodiments, methods of manufacturing magnetic recording media and systems using magnetic recording media are described.

摘要翻译： 根据一个实施例，磁记录介质包括形成在基板上方的磁记录层，该磁记录层由具有晶体结构的合金组成，在磁记录层上形成为几乎同心圆形的记录道，其中记录 轨道由具有晶体结构的第一合金组合物和在磁记录层上的记录轨道之间形成的轨道分离区域组成，其中轨道分离区域由具有晶体结构的第二合金组合物构成，第二合金组合物包含 所述第一合金组合物和非磁性元素，其中所述第二合金组合物的晶格常数大于所述第一合金组合物的晶格常数。 在其它实施例中，描述了制造使用磁记录介质的磁记录介质和系统的方法。

公开(公告)号：US07876530B2

公开(公告)日：2011-01-25

申请号：US12387164

申请日：2009-04-28

申请人： Tatsuya Hinoue ,  Yotsuo Yahisa ,  Tomoo Yamamoto ,  Jo Inagaki ,  Hiroyuki Suzuki ,  Masae Suzuki, legal representative ,  Hidekazu Kashiwase

发明人： Tatsuya Hinoue ,  Yotsuo Yahisa ,  Tomoo Yamamoto ,  Jo Inagaki ,  Hiroyuki Suzuki ,  Hidekazu Kashiwase

IPC分类号： G11B5/66 ,  B32B3/02

CPC分类号： G11B5/65 ,  G11B5/656 ,  G11B5/66 ,  H01F10/16 ,  H01F10/265

摘要： In one embodiment, a magnetic recording medium comprises an underlying film, a magnetic film and a protective film formed in this order on a substrate. The magnetic film is a cobalt-base alloy film containing chromium and has a plurality of magnetic layers stacked without interposition of any non-magnetic layer. The plural magnetic layers comprise first, second and third magnetic layers. The first magnetic layer is disposed between the underlying film and the second magnetic layer. The second magnetic layer is disposed between the first magnetic layer and the third magnetic layer. The third magnetic layer is disposed between the second magnetic layer and the protective film. The concentration of chromium contained in the first magnetic layer is lower than that of chromium contained in the second magnetic layer. The thickness of the first magnetic layer is smaller than that of the second magnetic layer. The magnetic layers which overlie the first magnetic layer further contain platinum and boron. The concentration of chromium contained in the third magnetic layer is lower than that of chromium contained in the second magnetic layer.

摘要翻译： 在一个实施例中，磁记录介质包括在衬底上依次形成的下面的膜，磁性膜和保护膜。 磁性膜是含有铬的钴基合金膜，并且具有堆叠而不插入任何非磁性层的多个磁性层。 多个磁性层包括第一，第二和第三磁性层。 第一磁性层设置在下面的膜和第二磁性层之间。 第二磁性层设置在第一磁性层和第三磁性层之间。 第三磁性层设置在第二磁性层和保护膜之间。 第一磁性层中含有的铬的浓度低于第二磁性层中含有的铬的浓度。 第一磁性层的厚度小于第二磁性层的厚度。 覆盖在第一磁性层上的磁性层还含有铂和硼。 第三磁性层中含有的铬的浓度低于第二磁性层中含有的铬的浓度。

公开(公告)号：US08390954B2

公开(公告)日：2013-03-05

申请号：US12556492

申请日：2009-09-09

申请人： Sarbanoo Das ,  Masae Suzuki

发明人： Sarbanoo Das ,  Hiroyuki Suzuki

IPC分类号： G11B5/37

CPC分类号： G11B5/374 ,  G11B5/1278 ,  G11C11/18

摘要： According to one embodiment, magnetic reproducing element for detecting a magnetic field from a magnetic recording medium comprises a sensor film including a perpendicular magnetization film having a magnetization easy axis in a direction perpendicular to a film plane, wherein magnetization in the sensor film tilts upward or downward in an element height direction from the magnetization easy axis while no magnetic field is applied from the magnetic recording medium, and change in anomalous Hall voltage generated in the sensor film is detected, thereby allowing the magnetic field applied from the magnetic recording medium to be detected. Other magnetic reproducing elements and magnetic heads employing magnetic reproducing elements are described as well.

摘要翻译： 根据一个实施例，用于检测来自磁记录介质的磁场的磁再现元件包括传感器膜，其包括在垂直于膜平面的方向上具有易磁化轴的垂直磁化膜，其中传感器膜中的磁化向上倾斜或 在磁化容易轴的元件高度方向上向下，同时没有从磁记录介质施加磁场，并且检测到传感器膜中产生的异常霍尔电压的变化，从而允许从磁记录介质施加的磁场为 检测到。 还描述了采用磁再现元件的其它磁再现元件和磁头。

公开(公告)号：US08221192B2

公开(公告)日：2012-07-17

申请号：US12537982

申请日：2009-08-07

申请人： Hidekazu Kashiwase ,  Hiroyuki Suzuki ,  Masae Suzuki, legal representative ,  Mitsuhiro Shoda ,  Takayoshi Ohtsu ,  Kiyoshi Hashimoto

发明人： Hidekazu Kashiwase ,  Hiroyuki Suzuki ,  Mitsuhiro Shoda ,  Takayoshi Ohtsu ,  Kiyoshi Hashimoto

IPC分类号： B24B49/00

CPC分类号： G11B5/8404 ,  G11B5/3136 ,  G11B5/455 ,  G11B5/6064

摘要： A magnetic-recording-disk test-head. The magnetic-recording-disk test-head includes a slider, a test pad and a slider-surface-shape control mechanism. The slider includes a leading edge and a trailing edge. The test pad is disposed at a trailing-edge side of the slider and is configured to remove and to detect asperities on a magnetic-recording disk. The slider-surface-shape control mechanism is configured to change a shape of an air-bearing surface of the slider and is disposed at a leading-edge side of the slider.

摘要翻译： 磁记录盘测试头。 磁记录盘测试头包括滑块，测试垫和滑块表面形状控制机构。 滑块包括前缘和后缘。 测试垫设置在滑块的后缘侧，并且被配置为移除并检测磁记录盘上的凹凸。 滑块表面形状控制机构构造为改变滑块的空气轴承表面的形状并且设置在滑块的前缘侧。