Abstract: An electromagnetic-wave absorber and reflector includes a base material, and a plurality of unit patterns made of conductive material disposed at even intervals on a surface of the base material. In the electromagnetic-wave absorber and reflector, a portion of each of the plurality of unit patterns overlaps with a portion of adjacent one of the plurality of unit patterns in a stacking direction of the base material, and the portion of each of the plurality of unit patterns and the portion of adjacent one of the plurality of unit patterns have a dielectric layer interposed in between.

Abstract: A method of forming an electromagnetic-wave shield includes forming a conductive layer and forming an insulating layer. The forming the conductive layer forms a conductive layer having a plurality of openings onto an upper face and a side face of a surface of an object. The forming the insulating layer forms an insulating layer that is continuous from a surface of the conductive layer to the surface of the object through the plurality of openings and adheres to the surface of the object.

Abstract: An electromagnetic wave resonant structure is provided that includes a conductive portion and a non-conductive portion, and the non-conductive portion includes a mixed region of a part of the conductive region and an insulator.

Abstract: An anti-pathogen structure includes a resin structure having a plurality of openings in a surface of the resin structure, wherein the resin structure has an antimicrobial activity or an antiviral activity.

Abstract: An eye-gaze tracker wearable by a user, includes: an infrared irradiation unit to irradiate an eyeball of the user with infrared light; an infrared sensor provided on a lens, the infrared sensor being translucent at least to visible light and to output a signal when the infrared light reflected from the eyeball is incident on the infrared sensor; and processing circuitry to determine a gaze direction of the user based on the signal output from the infrared sensor.

Abstract: An eye-gaze tracker wearable by a user, includes: an infrared irradiation unit to irradiate an eyeball of the user with infrared light; an infrared sensor provided on a lens, the infrared sensor being translucent at least to visible light and to output a signal when the infrared light reflected from the eyeball is incident on the infrared sensor; and processing circuitry to determine a gaze direction of the user based on the signal output from the infrared sensor.

Abstract: A heat exchanger includes a plurality of plate fins including a plurality of flow channels in which a heat medium flows; a plurality of corrugated fins, the plurality of plate fins and the plurality of corrugated fins being arranged alternately; and a reaction portion solidified by crystallization of reaction material slurry filling gaps between the plurality of plate fins and the plurality of the corrugated fins, the reaction material slurry including a reaction material that reversibly reacts with a reaction medium in an exothermic manner and in an endothermic manner to exchange heat with the heat medium.

Abstract: A heat storage and release unit includes a reactant formed body for reacting with a reaction medium to store and release heat; a reaction vessel for accommodating the reactant formed body and exchanging heat with the reactant formed body; a reaction medium flow path structure, connected to the reaction vessel, for supplying the reaction medium to the reaction vessel or discharging the reaction medium from the reaction vessel. The reactant formed body includes a plate-like heat transfer plate that contacts the reaction vessel, heat transfer elements extending from a surface of the heat transfer plate at substantially right angles, and a reactant formed unit that encloses the heat transfer elements in such a way that the heat transfer elements are partially exposed from the reactant formed unit, and the reaction vessel can change form by a pressure difference between the outside and the inside of the reaction vessel.

Abstract: A reaction material formed body into which a reaction material reacting with a reaction medium to store or release heat is formed includes first and second opposite surfaces and multiple heat transfer enhancing members extending at least from the first surface to the second surface. At least two or more of the heat transfer enhancing members are oriented in a predetermined single direction.

Abstract: A reaction material for a chemical heat pump includes type III anhydrous gypsum, a magnesium compound, and CaxMg1-xSO4. The reaction material for the chemical heat pump structurally changes between a compound including type III anhydrous gypsum, the magnesium compound, and CaxMg1-xSO4, and a compound including hemihydrate gypsum, a hydrate of the magnesium compound, and a hydrate of CaxMg1-xSO4 when subjected to heat storage process and heat release process. x is 0<x<1.

Abstract: A reaction material formed body into which a reaction material reacting with a reaction medium to store or release heat is formed includes first and second opposite surfaces and multiple heat transfer enhancing members extending at least from the first surface to the second surface. At least two or more of the heat transfer enhancing members are oriented in a predetermined single direction.

Abstract: A reaction material for a chemical heat pump includes type III anhydrous gypsum, a magnesium compound, and CaxMg1-xSO4. The reaction material for the chemical heat pump structurally changes between a compound including type III anhydrous gypsum, the magnesium compound, and CaxMg1-xSO4, and a compound including hemihydrate gypsum, a hydrate of the magnesium compound, and a hydrate of CaxMg1-xSO4 when subjected to heat storage process and heat release process. x is 0<x<1.