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公开(公告)号：US20240304361A1
公开(公告)日：2024-09-12
申请号：US18595669
申请日：2024-03-05
Applicant: TDK CORPORATION
Inventor： Maiko KOKUBO , Shinji Hara , Naoki Ohta , Susumu Aoki
CPC classification number: H01C7/008 , G01J5/20 , G01J2005/202
Abstract: A thermistor element includes: a thermistor film formed of an oxide having a spinel crystal structure; a first surface-side electrode provided in contact with a first surface of the thermistor film; and a second surface-side electrode provided in contact with a second surface of the thermistor film, wherein the first surface-side electrode includes a first electrode and a second electrode, and at least a part of the first electrode and at least a part of the second electrode are disposed to overlap the second surface-side electrode, and in the thermistor film, an oxygen concentration of a second region between the first electrode and the second electrode in a plan view is higher than that of a first region consisting of a region that overlaps the first electrode and the second surface-side electrode and a region that overlaps the second electrode and the second surface-side electrode.
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公开(公告)号：US11821787B2
公开(公告)日：2023-11-21
申请号：US18079388
申请日：2022-12-12
Applicant: TDK CORPORATION
Inventor： Takeshi Nojiri , Hideaki Fukuzawa , Tetsuya Shibata , Tomohito Mizuno , Susumu Aoki
CPC classification number: G01J1/4257 , G02B6/4298 , H10N50/80
Abstract: The light detection element includes a magnetic element and an optical waveguide. The magnetic element includes a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer. The optical waveguide includes at least a core and a cladding covering at least a part of the core. Light that has propagated through the optical waveguide is applied to the magnetic element.
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公开(公告)号：US11480477B2
公开(公告)日：2022-10-25
申请号：US16969015
申请日：2018-03-06
Applicant: TDK Corporation
Inventor： Shinji Hara , Naoki Ohta , Susumu Aoki , Eiji Komura , Akimasa Kaizu
Abstract: A heat utilizing device is provided in which the thermal resistance of the wiring layer is increased while an increase in electric resistance of the wiring layer is limited. Heat utilizing device has thermistor whose electric resistance changes depending on temperature; and wiring layer that is connected to thermistor. A mean free path of phonons in wiring layer is smaller than a mean free path of phonons in an infinite medium that consists of a material of wiring layer.
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公开(公告)号：US09025422B2
公开(公告)日：2015-05-05
申请号：US13849735
申请日：2013-03-25
Applicant: TDK Corporation
Inventor： Susumu Aoki , Kosuke Tanaka , Keita Kawamori , Hiroki Kawato , Takeshi Tsutsumi
CPC classification number: G21K1/00 , G11B5/314 , G11B5/6088 , G11B2005/0021
Abstract: The present invention relates to a plasmon generator, in which a surface plasmon is excited by application of light. The plasmon generator extends along one direction. The plasmon generator includes a first end surface that is positioned on one end in the one direction and at which near-field light is generated along with the excitation of the plasmon; and a second cross section that is substantially parallel to the first end surface and is away from the first end surface. The first end surface has a polygonal shape that does not have a substantially acute inner angle. The second cross section has an upper part that has a shape substantially the same as or similar to that of the first end surface and a flare shaped lower part that is connected to the upper part and has a width that increases as it is far from the upper part.
Abstract translation: 本发明涉及一种等离子体激元，其中通过施加光使表面等离子体激发。 等离子体发生器沿着一个方向延伸。 所述等离子体发生器包括位于一个方向的一端并与所述等离子体激元一起产生近场光的第一端面; 以及第二横截面，其基本上平行于第一端面并远离第一端面。 第一端面具有不具有基本上急剧的内角的多边形形状。 第二横截面具有与第一端面基本相同或类似的形状的上部，以及连接到上部的喇叭形下部，其宽度随着远离 上面的部分。
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公开(公告)号：US11769613B2
公开(公告)日：2023-09-26
申请号：US17539480
申请日：2021-12-01
Applicant: TDK CORPORATION
Inventor： Susumu Aoki , Shinji Hara , Naoki Ohta , Maiko Shirokawa , Eiji Komura
CPC classification number: H01C7/008 , H01C1/1413 , H01C7/041 , H01C7/043
Abstract: A thermistor element includes: a thermistor film; a first electrode provided in contact with one surface of the thermistor film; and a pair of second electrodes provided in contact with an other surface of the thermistor film, wherein the thermistor film is provided to cover a periphery of the first electrode.
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Patent Agency Ranking
公开(公告)号：US11676744B2
公开(公告)日：2023-06-13
申请号：US17669755
申请日：2022-02-11
Applicant: TDK CORPORATION
Inventor： Susumu Aoki , Shinji Hara , Naoki Ohta , Maiko Shirokawa
CPC classification number: H01C7/008 , G01J5/20 , H01C1/14 , G01J2005/0077 , G01J2005/202
Abstract: A thermistor element includes: a thermistor film; a pair of first electrodes in contact with one surface of the thermistor film; an insulation film opposite to a contact side of the pair of first electrodes, the contact side on which the pair of first electrodes is in contact with the thermistor film; and at least one opening portion located in a region which overlaps each of the first electrodes when viewed in a plan view and passing through the insulation film. Each first electrode has a first portion located where each of the first electrodes and the opening portion overlap when viewed in a plan view and a second portion outside of where each of the first electrodes and the opening portion overlap when viewed in a plan view and is over the first portion and second portion to be in contact with the one surface of the thermistor film.
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公开(公告)号：US11668607B2
公开(公告)日：2023-06-06
申请号：US17540004
申请日：2021-12-01
Applicant: TDK CORPORATION
Inventor： Maiko Shirokawa , Shinji Hara , Naoki Ohta , Susumu Aoki , Eiji Komura
IPC: G01J5/22 , G01J5/0831 , G01J5/20
CPC classification number: G01J5/22 , G01J5/0831 , G01J2005/202
Abstract: A thermistor element includes a thermistor film, a first electrode provided in contact with one surface of the thermistor film, and a pair of second electrodes provided in contact with the other surface of the thermistor film, wherein the thermistor film includes an oxide having a spinel crystal structure and having a [111] preferred orientation in a film thickness direction.
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8.发明授权Thermally assisted magnetic recording head with main magnetic pole apart from near field light generator 有权带有主磁极的热辅助磁记录头，远离近场光发生器公开(公告)号：US09165581B2
公开(公告)日：2015-10-20
申请号：US14204064
申请日：2014-03-11
Applicant: TDK Corporation
Inventor： Susumu Aoki , Takafumi Kobayashi , Kei Hirata , Eiji Komura , Tsutomu Chou
CPC classification number: G11B5/1278 , G11B5/3116 , G11B5/314 , G11B5/6088 , G11B2005/0021 , G11B2005/0024
Abstract: A thermally assisted magnetic recording head has a generator end surface facing an air bearing surface (ABS), and includes: a near-field light (NF light) generator that generates an NF light on the generator end surface and irradiates a magnetic recording medium with the NF light, and a main magnetic pole end surface positioned in the vicinity of the generator end surface; a main magnetic pole that emits a magnetic flux from the main magnetic pole end surface to the magnetic recording medium and a shield end surface positioned in the vicinity of the generator end surface; and a return shield that is magnetically linked to the main magnetic pole, and that absorbs the magnetic flux returning from the magnetic recording medium at the shield end surface. The main magnetic pole and the return shield are positioned to be on the same side with respect to the NF light generator in the down track direction, and the NF light generator does not overlap with the main magnetic pole either in the down track direction or in the cross track direction.
Abstract translation: 一种热辅助磁记录头具有面向空气轴承表面（ABS）的发生器端面，并且包括：近场光（NF光）发生器，其在发生器端面上产生NF光并照射磁记录介质 NF灯和位于发电机端面附近的主磁极端面; 从主磁极端面向磁记录介质发出磁通的主磁极和位于发电机端面附近的屏蔽端面; 以及与主磁极磁连接并且在屏蔽端面处吸收从磁记录介质返回的磁通的返回屏蔽。 主磁极和返回屏蔽体相对于NF光发生器沿向下方向位于同一侧，并且NF光发生器在主导方向上或与主磁极不重叠 十字轨道方向。
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公开(公告)号：US09165569B1
公开(公告)日：2015-10-20
申请号：US14276409
申请日：2014-05-13
Applicant: TDK CORPORATION
Inventor： Takafumi Kobayashi , Susumu Aoki , Kosuke Tanaka , Tsutomu Chou , Koji Shimazawa
CPC classification number: G11B5/235 , G02B6/00 , G02B6/122 , G11B5/3116 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0021
Abstract: Thermally-assisted magnetic recording head, includes: a magnetic pole having an end exposed on an air-bearing surface; a waveguide; a plasmon generator having a first and second region, first region extending backward from the air-bearing surface to a first position, second region being coupled with the first region at the first position, extending backward from first position, and having a width in a track-width direction, and width in the track-width direction of second region being larger than a width in the track-width direction of first region; an adhesion layer having an end exposed on the air-bearing surface and a first adhesion region, the first adhesion region being in close contact with an end face in the track-width direction of first region; and a cladding layer located around plasmon generator and adhesion layer. Adhesion force between adhesion layer and plasmon generator is greater than adhesion force between cladding layer and plasmon generator.
Abstract translation: 热辅助磁记录头包括：具有暴露在空气轴承表面上的端部的磁极; 波导; 具有第一和第二区域的等离子体发生器，从空气轴承表面向后延伸到第一位置的第一区域，第二区域与第一位置处的第一区域耦合，从第一位置向后延伸，并且具有 轨道宽度方向和第二区域的轨道宽度方向上的宽度大于第一区域的轨道宽度方向上的宽度; 具有暴露在空气轴承表面上的端部和第一粘附区域的粘合层，所述第一粘合区域与第一区域的轨道宽度方向上的端面紧密接触; 以及位于等离子体发生器和粘附层周围的包覆层。 粘附层和等离子体发生器之间的粘附力大于包层和等离子体发生器之间的粘附力。
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公开(公告)号：US11898913B2
公开(公告)日：2024-02-13
申请号：US17889958
申请日：2022-08-17
Applicant: TDK CORPORATION
Inventor： Shinji Hara , Naoki Ohta , Kazuya Maekawa , Susumu Aoki , Maiko Shirokawa
CPC classification number: G01J5/20 , G01J5/0205
Abstract: An electromagnetic wave sensor 1 has electromagnetic wave absorbers disposed side by side in first and second directions, temperature detection portions held by the respective electromagnetic wave absorbers and sets of two arm portions connected to each electromagnetic wave absorber at two connection portions. In a plan view, the arm portions have two first extending portions extending from the connection portions in directions of which components in the second direction are opposite to each other, and two second extending portions extending from the first extending portions in directions of which components in the first direction are opposite to each other. Four sides of a rectangle circumscribing each of the electromagnetic wave absorbers with a smallest area are inclined with respect to the first direction in directions in which each electromagnetic wave absorber is away from the second extending portions with the connection portions as fulcrums.
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