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公开(公告)号：US12165678B2
公开(公告)日：2024-12-10
申请号：US18354959
申请日：2023-07-19
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Satoshi Shirotori , Tazumi Nagasawa , Akira Kikitsu , Yoshihiro Higashi
Abstract: According to one embodiment, a magnetic head includes first to fourth shields, first to fourth terminals, and first magnetic member. The third shield includes a first partial region and a second partial region. The fourth shield includes a third partial region and a fourth partial region. The first magnetic member is provided between a portion of the first shield and a portion of the second shield in a first direction from the first shield to the second shield. The first magnetic member is provided between the first partial region and the third partial region in a second direction crossing the first direction. The portion of the first shield is located between the second partial region and the fourth partial region in the second direction.
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公开(公告)号：US11432751B2
公开(公告)日：2022-09-06
申请号：US17399345
申请日：2021-08-11
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Satoshi Shirotori , Hitoshi Iwasaki , Akira Kikitsu , Yoshihiro Higashi , Yoshinari Kurosaki
Abstract: According to one embodiment, a magnetic sensor includes a first magnetic element, a second magnetic element, a third magnetic element located between the first and second magnetic elements in a first direction, a fourth magnetic element located between the third and second magnetic elements in the first direction, a first conductive member, a second conductive member, a third conductive member located between the first and second conductive members in the first direction, a fourth conductive member located between the third and second conductive members in the first direction, a first magnetic member, a second magnetic member, a third magnetic member located between the first and second magnetic members in the first direction, a fourth magnetic member located between the third and second magnetic members in the first direction, and a fifth magnetic member located between the third and fourth magnetic members in the first direction.
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公开(公告)号：US11350840B2
公开(公告)日：2022-06-07
申请号：US17082333
申请日：2020-10-28
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hitoshi Iwasaki , Akira Kikitsu , Satoshi Shirotori
Abstract: According to one embodiment, a magnetic sensor includes a first sensor element and a first interconnect. The first sensor element includes a first magnetic layer, a first opposing magnetic layer, and a first nonmagnetic layer provided between the first magnetic layer and the first opposing magnetic layer. A first magnetization of the first magnetic layer is aligned with a first length direction crossing a first stacking direction from the first magnetic layer toward the first opposing magnetic layer. At least a portion of the first interconnect extends along the first length direction. The first interconnect cross direction crosses the first length direction and is from the first sensor element toward the portion of the first interconnect. A first electrical resistance of the first sensor element changes according to an alternating current flowing in the first interconnect and a sensed magnetic field applied to the first sensor element.
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公开(公告)号：US11119161B2
公开(公告)日：2021-09-14
申请号：US16816401
申请日：2020-03-12
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hitoshi Iwasaki , Akira Kikitsu , Yoshihiro Higashi , Satoshi Shirotori
Abstract: According to one embodiment, a magnetic sensor includes a first element. The first element includes a first magnetic part, a first magnetic layer, a first nonmagnetic portion, and a first intermediate magnetic layer. The first magnetic part includes first to third portions. The first portion is between the second and third portions. The first portion has a first length and a second length. The second portion has at least one of a third length longer than the first length or a fourth length longer than the second length. The third portion has at least one of a fifth length longer than the first length or a sixth length longer than the second length. The first nonmagnetic portion is provided between the first portion and the first magnetic layer. The first intermediate magnetic layer is provided between the first portion and the first nonmagnetic portion.
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Patent Agency Ranking
公开(公告)号：US11011474B2
公开(公告)日：2021-05-18
申请号：US16562652
申请日：2019-09-06
Inventor： Akira Kikitsu , Yoshinari Kurosaki , Kenichiro Yamada , Shigeki Matsunaka
IPC: H01L23/552 , H01F10/30 , H01F10/14 , H01F10/16
Abstract: According to one embodiment, an electromagnetic wave attenuator includes a plurality of magnetic layers, and a plurality of nonmagnetic layers. The plurality of nonmagnetic layers is conductive. A direction from one of the plurality of magnetic layers toward an other one of the plurality of magnetic layers is aligned with a first direction. One of the plurality of nonmagnetic layers is between the one of the plurality of magnetic layers and the other one of the plurality of magnetic layers. A first thickness along the first direction of the one of the plurality of magnetic layers is not less than ½ times a second thickness along the first direction of the one of the plurality of nonmagnetic layers.
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公开(公告)号：US09269387B2
公开(公告)日：2016-02-23
申请号：US14576001
申请日：2014-12-18
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Akira Kikitsu , Naoko Kihara , Yoshiyuki Kamata , Hiroyuki Hieda
Abstract: In one embodiment, there are provided: a substrate; a data area disposed on the substrate and having a plurality of first magnetic dots arrayed in lines in mutually different first, second, and third directions; and a boundary magnetic part having a plurality of first magnetic portions arrayed in a line in the third direction and each having a length longer than that of the first magnetic dot in the third direction, and a second magnetic dot disposed between the first magnetic portions and disposed on extensions in the first and second directions of the first magnetic dots, and disposed along with the data area on the substrate.
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47.发明申请公开(公告)号：US20160012863A1
公开(公告)日：2016-01-14
申请号：US14736759
申请日：2015-06-11
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Akira Kikitsu , Tomoyuki Maeda , Masayuki Takagishi , Kenichiro Yamada
CPC classification number: G11B5/746 , G11B5/743 , G11B5/82 , G11B20/1217 , G11B2005/0021 , G11B2005/0024 , G11B2220/235
Abstract: A magnetic recording and reproducing device according to an embodiment includes a magnetic recording medium and a controller. The magnetic recording medium includes in sequence a substrate, a storage layer, an exchange layer, and a surface recording layer. The controller executes following steps (1) to (6): (1) magnetically recording first information on the surface recording layer; (2) transferring the first information recorded on the surface recording layer to the storage layer; (3) magnetically recording second information on the surface recording layer; (4) magnetically reproducing the second information from the surface recording layer; (5) transferring the first information recorded on the storage layer to the surface recording layer; and (6) magnetically reproducing the first information transferred to the surface recording layer.
Abstract translation: 根据实施例的磁记录和再现装置包括磁记录介质和控制器。 磁记录介质依次包括衬底，存储层，交换层和表面记录层。 控制器执行以下步骤（1）至（6）：（1）在表面记录层上磁记录第一信息; （2）将记录在表面记录层上的第一信息传送到存储层; （3）在表面记录层上磁记录第二信息; （4）从表面记录层磁再现第二信息; （5）将记录在存储层上的第一信息传送到表面记录层; 和（6）磁性再现传送到表面记录层的第一信息。
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公开(公告)号：US20150055404A1
公开(公告)日：2015-02-26
申请号：US14310152
申请日：2014-06-20
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hirofumi Morise , Hideaki Fukuzawa , Akira Kikitsu , Yoshiaki Fukuzumi
CPC classification number: H01L43/08 , G11C11/16 , G11C11/161 , G11C11/1673 , G11C11/1675 , G11C11/1693 , H01F10/3236 , H01F10/325 , H01F10/3254 , H01F10/3286 , H01F10/3295 , H01L27/228 , H01L41/0986 , H01L41/12 , H01L43/10
Abstract: A magnetic memory device comprises a first electrode, a second electrode, a laminated structure comprising plural first magnetic layers being provided between the first electrode and the second electrode, a second magnetic layer comprising different composition elements from that of the first magnetic layer and being provided between plural first magnetic layers, a piezoelectric body provided on a opposite side to a side where the first electrode is provided in the laminated structure, and a third electrode applying voltage to the piezoelectric body and provided on a different position from a position where the first electrode is provided in the piezoelectric body.
Abstract translation: 磁存储器件包括第一电极，第二电极，层叠结构，其包括设置在第一电极和第二电极之间的多个第一磁性层，第二磁性层包括与第一磁性层不同的组成元素， 在多个第一磁性层之间，在层压结构中设置在与设置有第一电极的一侧相反的一侧的压电体，以及将第三电极向压电体施加电压，并且设置在与第一电极的位置不同的位置， 电极设置在压电体中。
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公开(公告)号：US08958177B2
公开(公告)日：2015-02-17
申请号：US13912519
申请日：2013-06-07
Applicant: Kabushiki Kaisha Toshiba
Inventor： Akira Kikitsu , Naoko Kihara , Yoshiyuki Kamata , Hiroyuki Hieda
Abstract: In one embodiment, there are provided: a substrate; a data area disposed on the substrate and having a plurality of first magnetic dots arrayed in lines in mutually different first, second, and third directions; and a boundary magnetic part having a plurality of first magnetic portions arrayed in a line in the third direction and each having a length longer than that of the first magnetic dot in the third direction, and a second magnetic dot disposed between the first magnetic portions and disposed on extensions in the first and second directions of the first magnetic dots, and disposed along with the data area on the substrate.
Abstract translation: 在一个实施例中，提供：衬底; 数据区域，设置在所述基板上，并且具有在相互不同的第一，第二和第三方向上以行排列的多个第一磁性点; 以及边界磁性部分，具有多个第一磁性部分，沿着第三方向排成一行，并且每个第一磁性部分的长度都大于第三方向上的第一磁性点的长度;以及第二磁性点，设置在第一磁性部分和 设置在第一磁性点的第一和第二方向上的延伸部上，并与数据区域一起设置在基板上。
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