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1.发明申请公开(公告)号：US20160133293A1
公开(公告)日：2016-05-12
申请号：US14887998
申请日：2015-10-20
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Kenichiro YAMADA , Masayuki TAKAGISHI , Tomoyuki MAEDA , Yousuke ISOWAKI , Naoyuki NARITA , Shuichi MURAKAMI
CPC classification number: G11B20/1217 , G11B5/012 , G11B5/02 , G11B5/82 , G11B2020/1238
Abstract: According to one embodiment, a magnetic recording and reproducing device includes a magnetic recording medium, a recording unit, and a reproducing unit. The magnetic recording medium includes a first track including first and second sub-tracks extending in a first direction. The second sub-track is arranged with the first sub-track in a second direction intersecting the first direction. The recording unit records information in the first and second sub-tracks. The reproducing unit reproduces the information recorded in the first and second sub-tracks while opposing the first, second sub-tracks, and a boundary between the first and second sub-tracks. The first sub-track includes first magnetic recording components including first and second components. The second sub-track includes second magnetic recording components including third and fourth components. A first recording symbol is formed of the first and third components. A second recording symbol is formed of the second and fourth components.
Abstract translation: 根据一个实施例，磁记录和再现装置包括磁记录介质，记录单元和再现单元。 磁记录介质包括第一轨道，该第一轨道包括沿第一方向延伸的第一和第二子轨道。 第二子轨道与第一子轨道沿与第一方向相交的第二方向布置。 记录单元将信息记录在第一和第二子轨道中。 再现单元再现与第一和第二子轨道相对的第一和第二子轨道中记录的信息，以及第一和第二子轨道之间的边界。 第一子轨道包括包括第一和第二分量的第一磁记录部件。 第二子轨道包括第二和第四分量的第二磁记录组件。 第一记录符号由第一和第三分量形成。 第二记录符号由第二和第四分量形成。
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2.发明公开公开(公告)号：US20240242733A1
公开(公告)日：2024-07-18
申请号：US18364546
申请日：2023-08-03
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yousuke ISOWAKI , Kazuaki OKAMOTO , Kenichiro YAMADA
CPC classification number: G11B5/4813 , G11B5/012 , G11B2005/0021
Abstract: According to one embodiment, a magnetic recording device includes a magnetic recording medium group and a magnetic head group. The magnetic recording medium group includes a first magnetic recording medium, a plurality of second magnetic recording media, and a plurality of third magnetic recording media. The magnetic head group includes a first magnetic head, a plurality of second magnetic heads, and a plurality of third magnetic heads. The first magnetic head is configured to record data on the first magnetic recording medium by a first method. One of the plurality of second magnetic heads is configured to record data on one of the plurality of second magnetic recording media by a second method different from the first method. One of the plurality of third magnetic heads is configured to record data on one of the plurality of third magnetic recording media by the second method.
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3.发明公开公开(公告)号：US20230274763A1
公开(公告)日：2023-08-31
申请号：US17816784
申请日：2022-08-02
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yousuke ISOWAKI , Katsuya SUGAWARA , Kenichiro YAMADA
CPC classification number: G11B5/59688 , G11B5/012 , G06N3/02 , G06K9/6256
Abstract: According to one embodiment, an operating condition determining device includes a memory, and a processer. The memory is configured to store a plurality of classifications relating to information corresponding to a vibration state of a magnetic recording/reproducing device, and a plurality of setting parameter sets relating to an operation of the magnetic recording/reproducing device. The setting parameter sets correspond to the classifications. The processer is configured to acquire a first data. The first data includes information of the vibration state of the magnetic recording/reproducing device. The information is measured. The processer is configured to acquire one of the setting parameter sets from the memory. The one of the setting parameter sets corresponds to one of the classifications corresponding to the first data.
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公开(公告)号：US20160027457A1
公开(公告)日：2016-01-28
申请号：US14875522
申请日：2015-10-05
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yousuke ISOWAKI , Satoshi SHIROTORI , Masayuki TAKAGISHI , Hitoshi IWASAKI
CPC classification number: G11B5/3912 , G01R33/098 , G11B5/1272 , G11B5/3163 , G11B5/3932 , G11B5/398 , G11B2005/3996 , H01L43/08 , H01L43/12 , Y10T29/49826
Abstract: According to one embodiment, a magnetoresistance effect element includes first and second shields, first and second side magnetic units, a stacked body, and a hard bias unit. The first side magnetic unit includes a first soft magnetic layer, a first nonmagnetic intermediate layer, and a second soft magnetic layer. The second side magnetic unit includes a third soft magnetic layer, a second nonmagnetic intermediate layer, and a fourth soft magnetic layer. The stacked body includes a fifth ferromagnetic layer, a third nonmagnetic intermediate layer, and a sixth ferromagnetic layer. The hard bias unit is provided between the first and second shields. A first distance between the first and fifth magnetic layers is shorter than a second distance between the second and sixth magnetic layers. A third distance between the third and fifth magnetic layers is shorter than a fourth distance between the fourth and sixth magnetic layers.
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5.发明申请公开(公告)号：US20140233135A1
公开(公告)日：2014-08-21
申请号：US14182540
申请日：2014-02-18
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Susumu HASHIMOTO , Masayuki TAKAGISHI , Shuichi MURAKAMI , Yousuke ISOWAKI , Naoki HASE , Hitoshi IWASAKI
IPC: G11B5/39
CPC classification number: G11B5/3912 , G01R33/093 , G11B5/3906 , G11B5/3932 , G11B5/398 , H01F10/325
Abstract: According to one embodiment, a magnetoresistance effect element includes first and second shields, a stacked body and a hard bias unit. The stacked body includes first and second magnetic layers, an intermediate layer and a first Ru layer. A magnetization of the first magnetic layer is changeable. A magnetization of the second magnetic layer is changeable. The intermediate layer is nonmagnetic. The first Ru layer is provided between the first shield and the first magnetic layer. A thickness of the first Ru layer is not less than 1.5 nanometers and not more than 2.5 nanometers. The hard bias unit is provided between the first shield and the second shield. A first direction from the first shield toward the second shield intersects a second direction from the stacked body toward the hard bias unit.
Abstract translation: 根据一个实施例，磁阻效应元件包括第一和第二屏蔽层，堆叠体和硬偏置单元。 层叠体包括第一和第二磁性层，中间层和第一Ru层。 第一磁性层的磁化是可变化的。 第二磁性层的磁化是可变化的。 中间层是非磁性的。 第一Ru层设置在第一屏蔽和第一磁性层之间。 第一Ru层的厚度不小于1.5纳米且不大于2.5纳米。 硬偏置单元设置在第一屏蔽和第二屏蔽之间。 从第一屏蔽朝向第二屏蔽的第一方向与从层叠体朝向硬偏压单元的第二方向相交。
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240071421A1
公开(公告)日：2024-02-29
申请号：US18161438
申请日：2023-01-30
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yousuke ISOWAKI
CPC classification number: G11B20/1833 , G11B20/10046 , G11B20/1217 , G11B2020/10787 , G11B2020/1222 , G11B2020/1863
Abstract: According to one embodiment, a magnetic reproduction processing device includes a decoder. The decoder includes a convolutional layer including a plurality of filters, and an attention layer configured to derive a degree of contribution related to the filters. The decoder is configured to output a decoded result obtained by integrating results of processing an input signal with the filters according to the degree of contribution.
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7.发明申请公开(公告)号：US20140211338A1
公开(公告)日：2014-07-31
申请号：US14165023
申请日：2014-01-27
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hitoshi IWASAKI , Shuichi MURAKAMI , Masayuki TAKAGISHI , Susumu HASHIMOTO , Yousuke ISOWAKI , Naoki HASE , Masaki KADO
IPC: G11B5/31
CPC classification number: G11B5/3912
Abstract: A magnetic head according to an embodiment includes a first magnetic shield and a second magnetic shield that are opposed to each other, and a magnetoresistive film arranged between the first magnetic shield and the second magnetic shield, and including a first magnetic layer including a first metal layer that contains 90 at. % or more of Fe and a first Heusler alloy layer, a second magnetic layer arranged on a side of the first Heusler alloy layer opposite from the first magnetic layer, and an intermediate layer arranged between the first Heusler alloy layer and the second magnetic layer.
Abstract translation: 根据实施例的磁头包括彼此相对的第一磁屏蔽和第二磁屏蔽，以及布置在第一磁屏蔽和第二磁屏蔽之间的磁阻膜，并且包括第一磁性层，第一磁性层包括第一金属 包含90的层。 Fe和第一Heusler合金层的％以上，配置在与第一磁性层相反的第一Heusler合金层的一侧的第二磁性层，以及布置在第一Heusler合金层和第二磁性层之间的中间层。
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8.发明申请公开(公告)号：US20140043713A1
公开(公告)日：2014-02-13
申请号：US13936652
申请日：2013-07-08
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yousuke ISOWAKI , Hitoshi IWASAKI , Masayuki TAKAGISHI
CPC classification number: G11B5/11 , B82Y40/00 , G11B5/3909 , G11B5/3912 , G11B5/4555 , H01F7/00 , H01F10/324 , H01F41/02 , H01F41/302 , Y10T29/4902
Abstract: According to one embodiment, a magneto-resistance effect element includes a first shield, a second shield, a third shield, a first magnetic layer, a second magnetic layer, and an intermediate layer. The third shield is provided between the first shield and the second shield, and is in contact with the second shield. A length of the third shield along a first direction crossing a stacking direction from the first shield toward the second shield is shorter than a length along the first direction of the second shield. The first magnetic layer is provided between the first shield and the third shield. The second magnetic layer is provided between the first magnetic layer and the third shield, and is exchange-coupled to the third shield. The intermediate layer is provided between the first magnetic layer and the second magnetic layer.
Abstract translation: 根据一个实施例，磁阻效应元件包括第一屏蔽，第二屏蔽，第三屏蔽，第一磁性层，第二磁性层和中间层。 第三屏蔽设置在第一屏蔽和第二屏蔽之间，并与第二屏蔽接触。 沿着与第一屏蔽朝着第二屏蔽的堆叠方向交叉的第一方向的第三屏蔽件的长度比沿着第二屏蔽件的第一方向的长度短。 第一磁性层设置在第一屏蔽和第三屏蔽之间。 第二磁性层设置在第一磁性层和第三屏蔽之间，并与第三屏蔽层交换耦合。 中间层设置在第一磁性层和第二磁性层之间。
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公开(公告)号：US20250021436A1
公开(公告)日：2025-01-16
申请号：US18419432
申请日：2024-01-22
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yousuke ISOWAKI
IPC: G06F11/10
Abstract: According to one embodiment, a magnetic reproducing processing device includes a decoder and an error correction decoder. A first signal based on a reproduced signal is input to the decoder. A signal based on a second signal output from the decoder is input to the error correction decoder. The error correction decoder is configured to correct errors in the second signal based on a check matrix. The decoder includes a neural network layer. The neural network layer includes a plurality of calculation nodes. A connection relationship between the plurality of calculation nodes is based on the check matrix.
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公开(公告)号：US20180068679A1
公开(公告)日：2018-03-08
申请号：US15443760
申请日：2017-02-27
Applicant: Kabushiki Kaisha Toshiba
Inventor： Masayuki TAKAGISHI , Kenichiro YAMADA , Naoyuki NARITA , Tomoyuki MAEDA , Katsuya SUGAWARA , Yousuke ISOWAKI
IPC: G11B5/31 , H02K41/035 , H02P6/08
CPC classification number: G11B5/315 , G11B5/1278 , G11B5/17 , G11B5/3116 , G11B5/3123 , H02K41/0354 , H02P6/08
Abstract: According to one embodiment, a magnetic head includes a magnetic pole, and a coil. The coil includes a first coil portion separated from the magnetic pole in a first direction. The magnetic pole includes a magnetic pole end portion, and first and second magnetic pole edge portions connected to the magnetic pole end portion. The first coil portion includes first and second coil edge portions, and a third coil edge portion overlapping the magnetic pole and being connected to the first and second coil edge portions. The first magnetic pole edge portion includes a first magnetic pole overlap portion overlapping the first coil edge portion. The second magnetic pole edge portion includes a second magnetic pole overlap portion overlapping the second coil edge portion. The magnetic pole end portion has a magnetic pole end portion center in a second direction connecting the first and second magnetic pole overlap portions.
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