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公开(公告)号：US11411156B2
公开(公告)日：2022-08-09
申请号：US16495591
申请日：2018-03-13
Applicant: NEC CORPORATION
Inventor： Masahiko Ishida , Akihiro Kirihara , Yuma Iwasaki
Abstract: [Problem] To provide a heat exchange device with which efficient electric power generation can be performed while transfer of a heat amount is maintained. [Solution] A heat exchange device comprising a heat exchange section 1 and a magnetic body 2. The heat exchange section 1 includes a first heat transmission interface 3 in contact with a heat source, and a second heat transmission interface 4 in contact with a heat bath having a temperature different from that of the heat source. The magnetic body 2 is interposed between the first heat transmission interface 3 and the second heat transmission interface 4 of the heat exchange section 1, and includes a magnetization component in a direction intersecting a heat flux produced between the first heat transmission interface 3 and the second heat transmission interface 4.
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公开(公告)号：US09306153B2
公开(公告)日：2016-04-05
申请号：US14425188
申请日：2013-04-15
Applicant: NEC Corporation
Inventor： Masahiko Ishida , Akihiro Kirihara , Shigeru Koumoto
Abstract: A thermoelectric conversion element includes a magnetic layer which has a component magnetized in an in-plane direction, an electromotive layer which includes a material with spin orbit coupling, and a spin injection layer. The spin injection layer is provided between the magnetic layer and the electromotive layer and magnetically coupled to both the magnetic layer and the electromotive layer. A magnetic moment per unit volume of the spin injection layer is smaller than the magnetic moment per unit volume of the magnetic layer.
Abstract translation: 热电转换元件包括具有在面内方向被磁化的分量的磁性层，包括具有自旋轨道耦合的材料的电动层和自旋注入层。 自旋注入层设置在磁性层和电动层之间，并磁耦合到磁性层和电动层两者。 每单位体积的自旋注入层的磁矩小于磁性层每单位体积的磁矩。
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3.发明申请公开(公告)号：US20150101648A1
公开(公告)日：2015-04-16
申请号：US14390850
申请日：2013-04-03
Applicant: NEC Corporation
Inventor： Masahiko Ishida , Akihiro Kirihara , Shigeru Koumoto
IPC: H01L37/00
CPC classification number: H01L37/00
Abstract: A thermoelectric conversion element includes a cable. The cable includes a first member extended in the axis direction of the cable, and a second member extended in the axis direction to cover at least a part of the outer face of the first member. One of the first and second members is a magnetic body. The other of the first and second members is a conductive body formed of material exhibiting a spin orbit coupling.
Abstract translation: 热电转换元件包括电缆。 电缆包括在电缆的轴线方向上延伸的第一部件和沿轴线方向延伸的第二部件，以覆盖第一部件的外表面的至少一部分。 第一和第二成员之一是磁体。 第一和第二构件中的另一个是由表现出自旋轨道耦合的材料形成的导电体。
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公开(公告)号：US20140182645A1
公开(公告)日：2014-07-03
申请号：US14119272
申请日：2012-05-22
Applicant: TOHOKU UNIVERSITY , NEC Corporation
Inventor： Akihiro Kirihara , Yasunobu Nakamura , Shinichi Yorozu , Kenichi Uchida , Eiji Saitoh
IPC: H01L37/00
CPC classification number: H01L37/00
Abstract: Provided is a thermoelectric conversion element capable of converting both a temperature gradient in an in-plane direction and a temperature gradient in a direction perpendicular to plane into electric power at the same time. The thermoelectric conversion element includes: a substrate; a magnetic film provided on the substrate and formed of a polycrystalline magnetic insulator material that is magnetizable in a predetermined direction having a component parallel to a film surface; and electrodes provided to the magnetic film and made of a material having a spin orbit interaction. The thermoelectric conversion element is configured to be capable of outputting a temperature gradient perpendicular to a surface of the magnetic film as a potential difference in a surface of one of the electrodes and outputting a temperature gradient parallel to the surface of the magnetic film as a potential difference between the electrodes.
Abstract translation: 提供了能够同时将平面内方向的温度梯度和与平面垂直的方向的温度梯度同时变换为电力的热电转换元件。 热电转换元件包括：基板; 磁性膜，其设置在所述基板上，并且由能够沿着预定方向磁化的多晶磁性绝缘体材料形成，所述多晶磁性绝缘体材料具有平行于膜表面的分量; 以及提供给磁性膜并由具有自旋轨道相互作用的材料制成的电极。 热电转换元件被配置为能够输出与磁性膜的表面垂直的温度梯度作为一个电极的表面的电位差，并输出与磁性膜的表面平行的温度梯度作为电位 电极之间的差异。
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公开(公告)号：US12041853B2
公开(公告)日：2024-07-16
申请号：US17296392
申请日：2019-11-14
Applicant: NEC Corporation
Inventor： Akihiro Kirihara , Masahiko Ishida , Koichi Terashima , Yuma Iwasaki , Ryohto Sawada , Yasutomo Omori
Abstract: A portable power supply according to one or more embodiments includes a combustion device (20) and a heating container (30) that retains an object to be heated, wherein at least a part of a portion of the heating container, the portion being directly heated by the combustion device, is provided with a magnetic metal plate (32) that has spontaneous magnetization and that generates electromotive force due to an anomalous Nernst effect induced by the heating, and wherein electrodes (33a, 33b) for drawing power are provided. Thus, the heating container for generating electricity has a simple configuration, and furthermore the portable power supply is provided with both the heating container and the combustion device.
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Patent Agency Ranking
公开(公告)号：US20230270009A1
公开(公告)日：2023-08-24
申请号：US18105546
申请日：2023-02-03
Applicant: NEC Corporation
Inventor： Masahiko ISHIDA , Yasutomo Omori , Akihiro Kirihara , Hiroko Someya
CPC classification number: H10N15/20 , C22C19/07 , C22C19/007 , C22C28/00 , C22C2202/02
Abstract: Provided is a thermoelectric conversion element having a high Anomalous Nernst Effect at a lower cost. A thermoelectric conversion element (1) includes a magnetic alloy material containing aluminum, cobalt, and samarium, and a power generation layer (10), in which in the power generation layer (10), a content of aluminum in the magnetic alloy material is in a range of 1 atomic percent to 40 atomic percent, a content of samarium in the magnetic alloy material is in a range of 12 atomic percent to 40 atomic percent, and a content of cobalt in the magnetic alloy material is in a range of 57 atomic percent to 82 atomic percent.
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公开(公告)号：US11417818B2
公开(公告)日：2022-08-16
申请号：US16772020
申请日：2018-12-14
Applicant: NEC CORPORATION
Inventor： Akihiro Kirihara , Masahiko Ishida
Abstract: The purpose of the present invention is to make it possible to ensure a strength that allows thermoelectric evaluation to be performed even when sintering is carried out at a temperature lower than the minimum sintering temperature of a power generation layer, in a thermoelectric conversion element. For this purpose, this thermoelectric conversion element is characterized by being provided with a power generation layer and support layers including a sintered body, wherein the power generation layer is provided with a metal-magnetic insulator composite structure in which metal is formed in a net shape around a granulated magnetic body, the support layers are formed so as to be in contact with the top and bottom or the right and left of the power generation layer, and the minimum sintering temperature of the support layers is lower than the minimum sintering temperature of the power generation layer.
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公开(公告)号：US11105376B2
公开(公告)日：2021-08-31
申请号：US16646016
申请日：2018-08-03
Applicant: NEC CORPORATION , TOHOKU UNIVERSITY
Inventor： Akihiro Kirihara , Masahiko Ishida , Koichi Terashima , Ryohto Sawada , Eiji Saitoh , Yasuyuki Oikawa , Ryo Iguchi , Masao Ono
Abstract: In order to determine information about the generation of heat in a bearing (10) in a simple manner, a bearing (10) includes an outer ring (12) secured to a securing member, and an inner ring (11) provided on the inside of the outer ring (12) and secured to a shaft that rotates in the circumferential direction relative to the securing member. A thermal flow sensor (14) is provided as a coating on a securing-side surface that includes the outer ring (12), and generates a thermoelectromotive force including information about frictional heat generated with the rotation of the shaft.
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公开(公告)号：US09859486B2
公开(公告)日：2018-01-02
申请号：US14414969
申请日：2013-04-15
Applicant: NEC Corporation
Inventor： Akihiro Kirihara , Masahiko Ishida , Shigeru Koumoto
IPC: H01L35/28 , H01L35/30 , H01L35/12 , H01L37/00 , H01L35/00 , H01L43/06 , H01L35/04 , H01L35/34 , H01L43/04 , H01L43/14
CPC classification number: H01L37/00 , H01L35/00 , H01L35/04 , H01L35/34 , H01L43/04 , H01L43/06 , H01L43/065 , H01L43/14
Abstract: A thermoelectric conversion element includes a thermoelectric conversion sheet possessing flexibility. The thermoelectric conversion sheet includes a magnetic layer, an electricity-generating layer that is formed on the magnetic layer so as to contact with the magnetic layer and that is formed of a material exhibiting spin orbit coupling, and a first electrode and a second electrode formed on the electricity-generating layer so as to contact with the electricity-generating layer. The first electrode and the second electrode extend in a longitudinal direction of the thermoelectric conversion sheet, and are separated from each other in a first direction perpendicular to the longitudinal direction.
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公开(公告)号：US20140096810A1
公开(公告)日：2014-04-10
申请号：US14123956
申请日：2012-06-06
Applicant: NEC Corporation
Inventor： Yasunobu Nakamura , Akihiro Kirihara , Shinichi Yorozu
IPC: H01L35/32
Abstract: A thermoelectric conversion device includes: a substrate; two magnetic layers having a fixed magnetization direction with respect to the substrate; and at least one electrode including a material having a spin orbit interaction, wherein a gap (or dielectric layer of low thermal conductivity) is provided between the magnetic layers. A thickness of the gap (or dielectric layer) is of a distance within the range at that a magnetic dipole interaction is exerted, and a film thickness of the magnetic layers is of about a characteristic length determined by diffusion or the like of a magnetic excitation.
Abstract translation: 热电转换装置包括：基板; 相对于基板具有固定的磁化方向的两个磁性层; 以及包括具有自旋轨道相互作用的材料的至少一个电极，其中在所述磁性层之间提供间隙（或低导热性的电介质层）。 间隙（或电介质层）的厚度在施加磁偶极子相互作用的范围内的距离，并且磁性层的膜厚约为由磁激励的扩散等所确定的特征长度 。
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