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公开(公告)号：US20200037884A1
公开(公告)日：2020-02-06
申请号：US16498838
申请日：2018-03-20
Applicant: NEC CORPORATION , TOHOKU UNIVERSITY
Inventor： Masahiko ISHIDA , Ryo IGUCHI , Yuki SHIOMI , Eiji SAITOH , Ryohto SAWADA , Akihiro KIRIHARA , Koichi TERASHIMA , Yasuyuki OIKAWA
Abstract: In order to enable the measurement of thermal property information about a subject, this thermal diffusion coefficient measuring device, which is used by contacting the surface of a living body, is provided with: a biological information sensor comprising a temperature sensor and a heat flux sensor; and a heating/cooling control means. The temperature sensor is provided at a position contacting the surface of the living body, and operates so as to detect skin temperature. The heat flux sensor is provided at a position contacting the surface of the living body, while being adjacent to the temperature sensor, and operates so as to detect heat flux on the surface of the living body. The heating/cooling control means enables the measurement of the temperature diffusion coefficient of a thermal resistance component that is present between the biological information sensor and a deep inner portion of the living body.
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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
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.
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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
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.
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公开(公告)号：US20210026853A1
公开(公告)日：2021-01-28
申请号：US17040085
申请日：2019-02-15
Applicant: NEC Corporation
Inventor： Ryohto SAWADA , Masahiko ISHIDA , Yuma IWASAKI
IPC: G06F16/2453 , G06F16/28 , G06F16/22 , G06N7/00
Abstract: A combination search system includes: a storage that stores actual data in which input information indicating a combination of values taken by elements of the multi dimensions in the confirmation work in the past or in a real space is associated with output information indicating a value of the predetermined parameter obtained for the combination indicated by the input information at that time; and a search unit that repeats, a process of determining at least one combination to be used in next confirmation work on the basis of importance of information that is an index defined for each combination of the elements, the index being calculated from the actual data and being based on an amount of change in uncertainty of the value of the predetermined parameter in a whole of a search space due to that new output information for the combination is added to the actual data.
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Patent Agency Ranking
公开(公告)号：US20200313062A1
公开(公告)日：2020-10-01
申请号：US16651914
申请日：2018-08-13
Applicant: NEC CORPORATION
Inventor： Yuma IWASAKI , Masahiko ISHIDA , Akihiro KIRIHARA , Koichi TERASHIMA , Ryohto SAWADA , Hiroko SOMEYA
IPC: H01L37/04
Abstract: A thermoelectric conversion element 10 includes an anomalous Nernst material 11 having the anomalous Nernst effect, in which: the anomalous Nernst material 11 includes at least an element having the inverse spin-Hall effect; and the element is spin-polarized. By applying, for example, a magnetic field to such the thermoelectric conversion element 10 in the x direction and a temperature gradient thereto in the z direction, thermoelectromotive force can be taken out from terminals 12.
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公开(公告)号：US20220058175A1
公开(公告)日：2022-02-24
申请号：US17275411
申请日：2019-09-12
Applicant: NEC Corporation
Inventor： Ryohto SAWADA
Abstract: To assist a person to make an appropriate action plan based on multi-dimensional data. A data analysis apparatus includes an input part which receives first multi-dimensional data made up by a set of multi-dimensional vectors; a calculation part which divides a first multi-dimensional space spanned by the first multi-dimensional data into a second multi-dimensional space(s), interpolates second multi-dimensional data forming the second multi-dimensional space(s) among the first multi-dimensional data, and estimates a regression model(s); and an analysis part which determines whether or not there is a deficiency in the first multi-dimensional data based on an estimation result of the regression model(s).
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公开(公告)号：US20220037576A1
公开(公告)日：2022-02-03
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 the present invention is provided with 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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公开(公告)号：US20210366666A1
公开(公告)日：2021-11-25
申请号：US17286619
申请日：2019-10-25
Applicant: NEC Corporation
Inventor： Akihiro KIRIHARA , Yuma IWASAKI , Masahiko ISHIDA , Koichi TERASHIMA , Ryohto SAWADA
Abstract: Provided are an exterior body and an abnormality detector capable of suppressing bulking even when a heat generation detection function is provided. The exterior body of an electronic device generates heat during operation and is characterized by being provided with a magnetic body that is at least a portion of the exterior body, that has spontaneous magnetization, and that generates an electromotive force by exhibiting an abnormal Nernst effect through heat generation of the electronic device, wherein an electrode for extracting power is provided to the magnetic body.
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公开(公告)号：US20200034367A1
公开(公告)日：2020-01-30
申请号：US16493862
申请日：2018-03-06
Applicant: NEC Corporation
Inventor： Yuma IWASAKI , Masahiko ISHIDA , Akihiro KIRIHARA , Koichi TERASHIMA , Hiroko SOMEYA , Ryohto SAWADA
IPC: G06F16/2455 , G06N20/00 , G06F16/25 , G06N3/08
Abstract: A relation search system includes: a storage means (1) which stores a data set which includes a first-type data group and a second-type data group which are two types of data group that are acquired by different methods; a data adaptation means (2) which either corrects or reconstructs either first data which belongs to the first-type data group or second data which belongs to the second-type data group and which is associated with the first data, such that a divergence which arises between the first data and the second data because of the difference in the methods for the acquisition thereof is reduced; and a learning means (3) which, using the data set which includes the corrected or reconstructed data, carries out machine learning.
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