Nec Corporation

Tohoku University

Ryohto Sawada

Masahiko Ishida

Akihiro Kirihara

Koichi Terashima

Yuma Iwasaki

Eiji Saitoh

Hiroko Someya

Yasutomo Omori

Yasuyuki Oikawa

Ryo Iguchi

Masao Ono

Yuki Shiomi

A portable power supply according to one or more embodiments includes a combustion device () and a heating container () 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 () that has spontaneous magnetization and that generates electromotive force due to an anomalous Nernst effect induced by the heating, and wherein electrodes () 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.

Portable power supply

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.

Physical property evaluation device

A thermoelectric conversion element that has a power generation layer containing an iron-aluminum based magnetic alloy material containing equal to or more than 70 weight percent of iron and aluminum in total. The power generation layer generates an electromotive force, due to an anomalous Nernst effect that develops in the magnetic alloy material in response to a temperature gradient applied thereto, in a direction intersecting both the magnetization direction of the magnetic alloy material and the direction of the applied temperature gradient.

Thermoelectric conversion element

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.

Exterior body, abnormality detector, and abnormality detection system

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.

Thermal diffusion coefficient measuring device, and deep-body thermometer, deep-body temperature measuring device, and deep-body temperature measuring method using same

In order to determine information about the generation of heat in a bearing () in a simple manner, a bearing () includes an outer ring () secured to a securing member, and an inner ring () provided on the inside of the outer ring () and secured to a shaft that rotates in the circumferential direction relative to the securing member. A thermal flow sensor () is provided as a coating on a securing-side surface that includes the outer ring (), and generates a thermoelectromotive force including information about frictional heat generated with the rotation of the shaft.

Growing community of inventors

Tokyo, Japan

Ryohto Sawada