公开(公告)号：US20170032685A1

公开(公告)日：2017-02-02

申请号：US15124791

申请日：2014-03-19

Applicant: NEC Corporation

Inventor： Masahiko ISHIDA

IPC: G08G5/00

CPC classification number: G08G5/0095

Abstract: A vector generation unit selects, for each of three or more reference points set at locations spaced apart from each other on a sphere, a line segment to be drawn from each of the three or more reference points without intersecting another line segment, from among one or more line segments forming an airspace defined by a closed curve on the sphere, and generates, for each of the three or more reference points, a vector from the selected line segment to each of the reference points. An airspace recognition unit recognizes one of two regions on a true sphere as an outside of the airspace and recognizes the other region as the airspace, the two regions being separated by the closed curve, the one of the two regions including the vectors of more than half of the three or more reference points.

Abstract translation: 矢量生成单元对于设置在球体上彼此间隔开的位置的三个以上的参考点中的每一个，从三个以上的参考点中的每一个而不与另一个线段相交，从一个 或更多的线段，其形成由球体上的闭合曲线限定的空域，并且对于三个或更多个参考点中的每一个生成从所选择的线段到每个参考点的矢量。 空域识别单元将真实球体上的两个区域中的一个识别为空域外部，并将另一区域识别为空域，两个区域由闭合曲线分开，两个区域中的一个区域包括大于 三个或更多参考点中的一半。

公开(公告)号：US20150333247A1

公开(公告)日：2015-11-19

申请号：US14650466

申请日：2013-12-16

Applicant: NEC CORPORATION

Inventor： Masahiko ISHIDA ,  Akihiro KIRIHARA ,  Shigeru KOUMOTO

IPC: H01L37/00 ,  H01L43/14 ,  H01L43/04

CPC classification number: H01L29/66984 ,  H01L29/1606 ,  H01L37/00 ,  H01L43/04 ,  H01L43/14

Abstract: Concerning a thermoelectric conversion element, it is desired to provide a new spin current to charge current conversion material. A thermoelectric conversion element includes a magnetic layer possessing in-plane magnetization, and an electromotive layer magnetically coupled to the magnetic layer. The electromotive layer is formed of a carbon material, possesses anisotropy of electric conductivity, and further includes an additive.

Abstract translation: 关于热电转换元件，期望提供一种新的自旋电流来对电流转换材料进行充电。 热电转换元件包括具有面内磁化的磁性层和与磁性层磁耦合的电动层。 电动层由碳材料形成，具有导电性的各向异性，并且还包括添加剂。

公开(公告)号：US20150303363A1

公开(公告)日：2015-10-22

申请号：US14648230

申请日：2013-10-11

Applicant: NEC CORPORATION ,  NEC TOKIN CORPORATION

Inventor： Akihiro KIRIHARA ,  Masahiko ISHIDA ,  Shigeru KOUMOTO ,  Koichi KONDO ,  Naoharu YAMAMOTO

IPC: H01L35/02 ,  H01L43/14 ,  H01L43/10 ,  H01L37/04 ,  H01L43/04

CPC classification number: H01L35/02 ,  H01F10/20 ,  H01F41/24 ,  H01L35/22 ,  H01L35/34 ,  H01L37/00 ,  H01L37/04 ,  H01L43/04 ,  H01L43/10 ,  H01L43/14

Abstract: An object of the present invention is to provide a thermoelectric conversion element that can demonstrate satisfactory thermoelectric conversion performance, and also has flexibility or can be mounted on a surface having irregularities or a curved surface, a method of manufacturing such a thermoelectric conversion element, and a method of using such a thermoelectric conversion element. A thermoelectric conversion element according to the present invention includes a columnar crystal ferrite layer and an electromotive film formed on the columnar crystal ferrite layer. The electromotive film is configured to generate an electromotive force in an in-plane direction by an inverse spin Hall effect. Columnar crystal grains of the columnar crystal ferrite layer include a major axis a of not less than 200 nm and a minor axis b of not more than 500 nm where a>b.

Abstract translation: 本发明的目的是提供一种能够表现出令人满意的热电转换性能的热电转换元件，并且还具有柔性或可以安装在具有不规则或曲面的表面上，制造这种热电转换元件的方法，以及 使用这种热电转换元件的方法。 根据本发明的热电转换元件包括柱状晶体铁氧体层和形成在柱状晶体铁氧体层上的电动膜。 电动膜被配置为通过反旋转霍尔效应在面内方向上产生电动势。 柱状结晶铁氧体层的柱状晶粒包括长度a不小于200nm，短轴b不大于500nm，其中a> b。

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

IPC: H10N15/20 ,  C22C19/07 ,  C22C19/00 ,  C22C28/00

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.

公开(公告)号：US20210302343A1

公开(公告)日：2021-09-30

申请号：US17265657

申请日：2019-08-05

Applicant: NEC Corporation

Inventor： Masahiko ISHIDA ,  Ryohto SAWADA ,  Yuma IWASAKI ,  Akihiro KIRIHARA ,  Hiroko SOMEYA

IPC: G01N25/48 ,  H01L37/04

Abstract: This invention prevents measurement error from becoming large in thermoelectric conversion coefficient evaluation and enhances evaluation efficiency. This invention is a physical property evaluation device for evaluating the physical properties of a plurality of solid materials formed on a substrate. The physical property evaluation device comprises an electromotive force measurement means that forms closed circuits including the individual solid materials and measures the electromotive forces occurring at the two ends of each of the solid materials, a means for producing heat flow within the individual solid materials, an external magnetic field generation means for generating a uniform magnetic field having a given intensity and direction in the vicinity of the individual solid materials, and an automation means for evaluating the physical properties of the individual solid materials using the electromotive force measurement means, heat flow production means, and external magnetic field generation means.

公开(公告)号：US20200335682A1

公开(公告)日：2020-10-22

申请号：US16772020

申请日：2018-12-14

Applicant: NEC CORPORATION

Inventor： Akihiro KIRIHARA ,  Masahiko ISHIDA

IPC: H01L37/04 ,  B22F7/02 ,  H01L29/82

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.

公开(公告)号：US20180190894A1

公开(公告)日：2018-07-05

申请号：US15906522

申请日：2018-02-27

Applicant: NEC Corporation

Inventor： Akihiro KIRIHARA ,  Masahiko ISHIDA ,  Shigeru KOUMOTO

IPC: H01L37/00

CPC classification number: H01L37/00 ,  H01L29/66984 ,  H01L29/82 ,  H01L35/00 ,  H01L35/28 ,  H01L35/34 ,  H01L37/02 ,  H01L37/025 ,  H01L37/04

Abstract: A thermoelectric conversion element includes: a magnetic body having a magnetization; and an electromotive body formed of material exhibiting a spin orbit coupling and jointed to the magnetic body. The magnetic body has an upper joint surface jointed to the electromotive body. The upper joint surface has concavities and convexities.

公开(公告)号：US20160284966A1

公开(公告)日：2016-09-29

申请号：US15180738

申请日：2016-06-13

Applicant: NEC Corporation ,  Tohoku University

Inventor： Akihiro KIRIHARA ,  Masahiko ISHIDA ,  Takashi MANAKO ,  Kenichi UCHIDA ,  Eiji SAITOH

IPC: H01L37/04

CPC classification number: H01L37/04 ,  C30B7/02 ,  H01F10/24 ,  H01F10/265 ,  H01L37/00

Abstract: A magnetic element according to the present invention is formed of a layered product having a magnetic insulator film formed on a substrate including a material having no crystal structure. The magnetic insulator film has a columnar crystal structure.

Abstract translation: 根据本发明的磁性元件由具有形成在包括不具有晶体结构的材料的基板上的磁性绝缘膜的层叠体形成。 磁性绝缘膜具有柱状晶体结构。

公开(公告)号：US20220326094A1

公开(公告)日：2022-10-13

申请号：US17641897

申请日：2019-09-25

Applicant: NEC Corporation

Inventor： Akihiro KIRIHARA ,  Masahiko ISHIDA ,  Yuma IWASAKI ,  Yasutomo OMORI ,  Hiroko SOMEYA ,  Sadanori HATTORI

IPC: G01K7/36 ,  G01K17/06

Abstract: A heat-flow sensor that includes an insulating layer, a magnetic field application layer arranged on a first surface of the insulating layer and composed of a conductor, and a heat-flow detection layer arranged on a second surface of the insulating layer, the second surface facing the first surface, and the heat-flow detection layer composed of a conductive magnetic body. The heat-flow detection layer faces the magnetic field application layer via the insulating layer.

公开(公告)号：US20210395865A1

公开(公告)日：2021-12-23

申请号：US17296360

申请日：2019-11-21

Applicant: NEC Corporation

Inventor： Yuma IWASAKI ,  Masahiko ISHIDA ,  Akihiro KIRIHARA ,  Koichi TERASHIMA ,  Ryohto SAWADA ,  Hiroko SOMEYA ,  Yasutomo OMORI

IPC: C22C38/10 ,  H01F1/047

Abstract: A magnetic alloy material that includes iron and cobalt as main components and at least one element selected from the group containing of platinum, gold, and iridium.