公开(公告)号：US20210025765A1

公开(公告)日：2021-01-28

申请号：US16969015

申请日：2018-03-06

申请人： TDK Corporation

发明人： Shinji HARA ,  Naoki OHTA ,  Susumu AOKI ,  Eiji KOMURA ,  Akimasa KAIZU

IPC分类号： G01K7/22 ,  H01C7/06

摘要： 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.

公开(公告)号：US20230054724A1

公开(公告)日：2023-02-23

申请号：US17889958

申请日：2022-08-17

申请人： TDK CORPORATION

发明人： Shinji HARA ,  Naoki OHTA ,  Kazuya MAEKAWA ,  Susumu AOKI ,  Maiko SHIROKAWA

IPC分类号： G01J5/20 ,  G01J5/02

摘要： 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.

公开(公告)号：US20200072664A1

公开(公告)日：2020-03-05

申请号：US16550371

申请日：2019-08-26

申请人： TDK CORPORATION

发明人： Naoki OHTA ,  Yuji KAKINUMA ,  Shinji HARA ,  Susumu AOKI ,  Keita KAWAMORI ,  Eiji KOMURA

IPC分类号： G01J1/44 ,  H01L27/24 ,  H03F3/45 ,  G11C13/00 ,  H01L37/02 ,  H01L45/00

摘要： A resistive element array circuit includes word lines, bit lines, resistive elements, a selector, a differential amplifier, and a ground terminal. The word lines are coupled to a power supply. The resistive elements are each disposed at an intersection of corresponding one of the word lines and corresponding one of the bit lines. The selector is configured to select one word line and one bit line. The differential amplifier includes a positive input terminal configured to be coupled to the selected one of the bit lines which is selected by the selector, a negative input terminal configured to be coupled to non-selected one of the bit lines which is not selected by the selector and to non-selected one of the word lines which is not selected by the selector, an output terminal being coupled to the negative input terminal. The ground terminal is coupled to the positive input terminal.

公开(公告)号：US20140286147A1

公开(公告)日：2014-09-25

申请号：US13849735

申请日：2013-03-25

申请人： TDK Corporation

发明人： Susumu AOKI ,  Kosuke TANAKA ,  Keita KAWAMORI ,  Hiroki KAWATO ,  Takeshi TSUTSUMI

IPC分类号： G11B13/04 ,  G11B7/1387 ,  G21K1/00

CPC分类号： G21K1/00 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20230064502A1

公开(公告)日：2023-03-02

申请号：US17890589

申请日：2022-08-18

申请人： TDK CORPORATION

发明人： Susumu AOKI ,  Shinji HARA ,  Naoki OHTA ,  Kazuya MAEKAWA ,  Maiko SHIROKAWA

IPC分类号： G01J5/20

摘要： The present invention includes an electromagnetic wave detector, and a pair of arm portions and that are positioned on both sides with the electromagnetic wave detector interposed therebetween. The electromagnetic wave detector includes a temperature detection element, and electromagnetic wave absorbers which cover at least a part of the temperature detection element. Each of the arm portions includes a conductor layer which is in a line shape and electrically connected to the temperature detection element, and dielectric layers which are disposed on both sides of the conductor layer. In a short direction of the dielectric layers in a plan view, the conductor layer has a shape protruding outward beyond both end portions of the dielectric layers in the short direction.

公开(公告)号：US20230055177A1

公开(公告)日：2023-02-23

申请号：US17889149

申请日：2022-08-16

申请人： TDK CORPORATION

发明人： Shinji HARA ,  Naoki OHTA ,  Kazuya MAEKAWA ,  Susumu AOKI ,  Maiko SHIROKAWA

IPC分类号： G01J5/10 ,  G01J5/08

摘要： An electromagnetic wave sensor 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 of the electromagnetic wave absorbers 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 of the electromagnetic wave absorbers approaches the second extending portions with the connection portions as fulcrums.

公开(公告)号：US20150262594A1

公开(公告)日：2015-09-17

申请号：US14204020

申请日：2014-03-11

申请人： TDK Corporation

发明人： Susumu AOKI ,  Takafumi KOBAYASHI ,  Ryo HOSOI ,  Kei HIRATA

IPC分类号： G11B5/48 ,  G11B5/245

CPC分类号： G11B5/6088 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/314 ,  G11B2005/0021

摘要： The thermally assisted recording head of the present invention has a near field light (NF light) generator that includes a generator end surface facing an air bearing surface (ABS), that generates an NF light on the generator end surface, and that irradiates a magnetic recording medium with the NF light; a main magnetic pole that includes a main magnetic pole end surface facing the ABS and positioned in the vicinity of the generator end surface, and that emits a magnetic flux to the magnetic recording medium from the main magnetic pole end surface; and a return shield that includes a shield end surface facing the ABS and positioned in the vicinity of the generator end surface, that is magnetically linked with the main magnetic pole, and that absorbs a magnetic flux returning from the magnetic recording medium at the shield end surface. The main magnetic pole end surface and the shield end surface are positioned on the same side with respect to the generator end surface in the down track direction, and are positioned in the vicinity of each other in the track crossing direction, and a center line extending in the down track direction of the generator end surface extends between the opposing sides of the main magnetic pole end surface and the shield end surface.

摘要翻译： 本发明的热辅助记录头具有近场光（NF光）发生器，其包括面向空气轴承面（ABS）的发生器端面，其在发电机端面上产生NF光，并且照射磁性 具有NF光的记录介质; 主磁极，其包括面向所述ABS并且位于所述发电机端面附近的主磁极端面，并且从所述主磁极端面向所述磁记录介质发射磁通量; 以及返回屏蔽，其包括面向ABS的屏蔽端面并位于与主磁极磁性连接的发电机端面附近，并且吸收从磁记录介质在屏蔽端返回的磁通量 表面。 主磁极端面和屏蔽端面相对于发生器端面位于沿着轨道方向的同一侧，并且在轨道交叉方向上位于彼此附近，并且中心线延伸 在发电机端面的向下轨道方向上在主磁极端面和屏蔽端面的相对侧之间延伸。

公开(公告)号：US20220181050A1

公开(公告)日：2022-06-09

申请号：US17539480

申请日：2021-12-01

申请人： TDK CORPORATION

发明人： Susumu AOKI ,  Shinji HARA ,  Naoki OHTA ,  Maiko SHIROKAWA ,  Eiji KOMURA

IPC分类号： H01C7/00 ,  H01C7/04 ,  H01C1/14

摘要： 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.

公开(公告)号：US20220178759A1

公开(公告)日：2022-06-09

申请号：US17540004

申请日：2021-12-01

申请人： TDK CORPORATION

发明人： Maiko SHIROKAWA ,  Shinji HARA ,  Naoki OHTA ,  Susumu AOKI ,  Eiji KOMURA

IPC分类号： G01J5/22 ,  G01J5/0831

摘要： 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.

公开(公告)号：US20150262595A1

公开(公告)日：2015-09-17

申请号：US14204064

申请日：2014-03-11

申请人： TDK Corporation

发明人： Susumu AOKI ,  Takafumi KOBAYASHI ,  Kei HIRATA ,  Eiji KOMURA ,  Tsutomu CHOU

IPC分类号： G11B5/48 ,  G11B5/11 ,  G11B5/60

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021 ,  G11B2005/0024

摘要： 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.

摘要翻译： 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。