Abstract: A load sensor includes: an electrode; a dielectric formed on a lower surface of the electrode; and a conductive elastic body disposed so as to face a lower surface of the dielectric and having conductivity. A plurality of projecting portions are formed on an upper surface of the conductive elastic body. The conductive elastic body has a bending shape that is bent in an up-down direction, in at least a part thereof. Alternatively, at least either the conductive elastic body or the electrode has a bending shape that is bent in an up-down direction, in at least a part thereof.

Abstract: The present invention provides a secondary battery in which effective utilization of the installation space for a pressure sensitive sensor and a heater is more sufficiently achieved and high rate deterioration and electrolytic solution deterioration can be more sufficiently detected. The present invention relates to a secondary battery including: one or more battery cells; a case for housing the battery cells; and a heater provided between a battery cell in contact with the case and the case and/or between two battery cells adjacent to each other among the battery cells, in which the heater serves as a pressure sensitive sensor that detects a pressure distribution between the battery cell in contact with the case and the case and/or between the two battery cells adjacent to each other.

Abstract: Provided is a pressure-sensitive element having a relatively wide measurement range of a pressing force and a relatively simple structure while having more sufficient stretchability. A pressure-sensitive element includes a base material, a plurality of conductor wires, a plurality of dielectrics, and a filamentous member. The base material includes an elastic conductor having elasticity and conductivity. Further, the base material has a sheet shape. The plurality of conductor wires are arranged in parallel so as to individually intersect with the elastic conductor in plan view. Further, each of the plurality of conductor wires has a plurality of inflection parts. The plurality of dielectrics are arranged between the elastic conductor and the plurality of conductor wires. The filamentous member elongates so as to intersect with the plurality of conductor wires in plan view. Further, the filamentous member sews the plurality of conductor wires to the base material.

Abstract: A capacitance detection device includes a sensor unit including at least one sensor element whose capacitance changes, a control line applying to the sensor element a predetermined charging voltage for detecting the capacitance of the sensor element, a shield line electrically shielding the control line, a control circuit supplying the charging voltage to the sensor element via the control line, measuring a voltage change of the sensor element when the charging voltage is applied to the sensor element, and detecting the capacitance of the sensor element based on the voltage change, and an equipotential circuit setting a potential of the shield line equal to a potential of the control line.

Abstract: The present disclosure has an object of providing a tactile sensor having a simple structure and capable of detecting a shear force, and a tactile sensor unit constituting the tactile sensor. The present disclosure relates to a tactile sensor unit including: a plurality of pressure-sensitive elements each including a first substrate including a first electrode, a second electrode disposed facing the first electrode, and a dielectric disposed between the first electrode and the second electrode; and an external force acting portion disposed on and across the plurality of pressure-sensitive elements, wherein, when a shear force is applied to the external force acting portion, at least a part of the pressure-sensitive elements change in inter-electrode electrostatic capacitance.

Abstract: Provided is a pressure-sensitive element having more sufficient expandability, a relatively wide measurement range of pressure force, and a relatively simple structure, and an electronic device using the pressure-sensitive element. The pressure-sensitive element includes a plurality of first electrodes being elongated in first direction, arranged in a first plane, and including a conductive elastic body, a plurality of second electrodes being elongated in second direction intersecting the first direction, arranged in a second plane facing the first plane, and including a conductor wire, and a plurality of dielectrics covering a surface of the plurality of second electrodes. The plurality of second electrodes have bent parts K arranged periodically, and capacitance at intersections of the plurality of first electrodes and the plurality of second electrodes changes in accordance with pressure force applied between the plurality of first electrodes and the plurality of second electrodes.

Abstract: A travel sickness estimation system includes an estimation unit and an output unit. The estimation unit is configured to perform estimation processing of estimating, based on person information indicating conditions of a person who is on board a moving vehicle, whether or not the person is in circumstances that would cause travel sickness for him or her. The output unit is configured to output a result of the estimation processing performed by the estimation unit.

Abstract: The present disclosure provides a pressure-sensitive element having a relatively wide pressing force measurement range and a relatively simple structure. Pressure-sensitive element is provided with pressure-sensitive part that receives pressing force and detector that detects the pressing force, and has a structure described below. That is, pressure-sensitive part has first conductive member that has elasticity, second conductive member, and dielectric body. Dielectric body is disposed between first conductive member and second conductive member, and at least partially covers the surface of first conductive member or second conductive member. Detector detects pressing force based on a variation in electrostatic capacitance between first conductive member and second conductive member.

Abstract: A capacitance detection device includes: a sensor unit including a plurality of sensor elements; row control lines; column control lines; a control circuit supplying a charging voltage to the sensor element; and an equipotential circuit outputting a potential equal to the potential of the sensor element subject to measurement. The control circuit applies a charging voltage to the row control line connected to the sensor element and connects the column control line connected to the sensor element to the ground potential side. The control circuit causes the equipotential circuit to set a potential of at least one of the row control lines other than the row control line connected to the sensor element subject to measurement and the column control lines other than the column control line connected to the sensor element subject to measurement to a potential equal to the potential of the sensor element subject to measurement.

Abstract: The present invention provides a secondary battery in which effective utilization of the installation space for a pressure sensitive sensor and a heater is more sufficiently achieved and high rate deterioration and electrolytic solution deterioration can be more sufficiently detected. The present invention relates to a secondary battery including: one or more battery cells; a case for housing the battery cells; and a heater provided between a battery cell in contact with the case and the case and/or between two battery cells adjacent to each other among the battery cells, in which the heater serves as a pressure sensitive sensor that detects a pressure distribution between the battery cell in contact with the case and the case and/or between the two battery cells adjacent to each other.

Abstract: A food management system that manages food items in a refrigerator includes: a pressure-sensitive sensor that acquires information including shapes, weights, and positions of the food items; a comparator that performs comparison of the information acquired at different times; and an identifier that identifies at least one of (i) fluctuations in the number of food items or (ii) presence or absence of the food items.

Abstract: The present disclosure has an object of providing a tactile sensor having a simple structure and capable of detecting a shear force, and a tactile sensor unit constituting the tactile sensor. The present disclosure relates to a tactile sensor unit including: a plurality of pressure-sensitive elements each including a first substrate including a first electrode, a second electrode disposed facing the first electrode, and a dielectric disposed between the first electrode and the second electrode; and an external force acting portion disposed on and across the plurality of pressure-sensitive elements, wherein, when a shear force is applied to the external force acting portion, at least a part of the pressure-sensitive elements change in inter-electrode electrostatic capacitance.

Abstract: The present disclosure provides a pressure-sensitive element having a relatively wide pressing force measurement range and a relatively simple structure. Pressure-sensitive element is provided with pressure-sensitive part that receives pressing force and detector that detects the pressing force, and has a structure described below. That is, pressure-sensitive part has first conductive member that has elasticity, second conductive member, and dielectric body. Dielectric body is disposed between first conductive member and second conductive member, and at least partially covers the surface of first conductive member or second conductive member. Detector detects pressing force based on a variation in electrostatic capacitance between first conductive member and second conductive member.

Abstract: A photoelectric conversion element includes a first electrode layer, a photoelectric conversion layer, and a second electrode layer. The first electrode layer includes a first base member, and a rough layer formed on the first base member. The photoelectric conversion layer is formed on the rough layer, and the second electrode layer is formed above the photoelectric conversion layer. The rough layer includes a plurality of metal fine particles irregularly connected together and to a surface of the first base member, and the photoelectric conversion layer infiltrates among the plurality of metal fine particles constituting the rough layer.

Abstract: A photoelectric conversion element includes a first electrode layer, a photoelectric conversion layer, and a second electrode layer. The first electrode layer includes a first base member, and a rough layer formed on the first base member. The photoelectric conversion layer is formed on the rough layer, and the second electrode layer is formed above the photoelectric conversion layer. The rough layer includes a plurality of metal fine particles irregularly connected together and to a surface of the first base member, and the photoelectric conversion layer infiltrates among the plurality of metal fine particles constituting the rough layer.

Abstract: A capacitor comprising a capacitor element including a substrate having first and second faces, a porous first rough surface layer formed on the first face and having pores, a first inner conductive polymer layer formed in the pores, a first outer conductive polymer layer formed on the inner conductive polymer layer, a porous second rough surface layer formed on the second face and having pores, a second inner conductive polymer layer formed in the pores, a second outer conductive polymer layer formed on the second inner conductive polymer layer, and a dielectric layer formed on surfaces of the first and the second rough surface layer. A surface area of the second rough surface layer is smaller than that of the first rough surface layer. The second outer conductive polymer layer is thicker than the first outer conductive polymer layer. This structure enables to eliminate warpage of a capacitor element.

Abstract: A capacitor comprising a capacitor element including a substrate having first and second faces, a porous first rough surface layer formed on the first face and having pores, a first inner conductive polymer layer formed in the pores, a first outer conductive polymer layer formed on the inner conductive polymer layer, a porous second rough surface layer formed on the second face and having pores, a second inner conductive polymer layer formed in the pores, a second outer conductive polymer layer formed on the second inner conductive polymer layer, and a dielectric layer formed on surfaces of the first and the second rough surface layer. A surface area of the second rough surface layer is smaller than that of the first rough surface layer. The second outer conductive polymer layer is thicker than the first outer conductive polymer layer. This structure enables to eliminate warpage of a capacitor element.