Abstract: A high-frequency heating apparatus includes a table, a high-frequency power generator, a transmission body, a radiation part, and an elevating drive mechanism. A heating target is to be placed on the table. The high-frequency power generator generates high-frequency power. The transmission body propagates the high-frequency power as surface waves. The radiation part is disposed on the transmission body and radiates the surface waves as high-frequency power. The elevating drive mechanism sets a distance between a top surface of the table or the heating target and the transmission body to not less than a predetermined distance so as to heat the heating target entirely by the high-frequency power. The elevating drive mechanism sets a distance between the top surface of the table or the heating target and the transmission body to not greater than the predetermined distance so as to partially brown the heating target by the surface waves.

Abstract: There is provided a biological electrode capable of realizing good contacting with a scalp of a subject for detection. The biological electrode includes an electrode member in contact with a body of the subject, wherein the electrode member has an electrode body having a plate shape and a plurality of electrode protrusions provided so as to protrude from the electrode protrusion forming surface of the electrode body, and the plurality of electrode protrusions are arranged on an outer peripheral part of the electrode protrution forming surface so as to avoid a central part of the electrode protrusion forming surface of the electrode body, and a protrusion height h of each electrode protrusion from a proximal end thereof to a distal end thereof in a direction perpendicular to the electrode protrusion forming surface is 6 to 15 mm.

Abstract: An electroconductive rubberized fabric is provided that can be used as a bioelectrode and that suppresses an increase in an electric resistance value. The electroconductive rubberized fabric includes: an electroconductive base fabric layer formed of an electroconductive base fabric and including a first electroconductive base fabric layer surface; and an electroconductive rubber layer formed by superimposing electroconductive rubber on the first electroconductive base fabric layer surface.

Abstract: A bioelectrode is provided that can make it easy to maintain an electrode shape and suppress a burden on a subject of measurement. A bioelectrode includes a support member, an electrode member, and a connector. The electrode member has a supported section. The supported section has a supported surface and an electrode formation surface that face in opposite directions from each other. A plurality of electrode protrusions are provided on the electrode formation surface. The electrode member is formed of conductive rubber. The electrode protrusions each have a base end and a tip. The conductive rubber of the base end is harder than the conductive rubber of the tip.

Abstract: Provided is an electroconductive rubberized fabric that can be used as a bioelectrode and can suppress an increase in an electric resistance value. The electroconductive rubberized fabric includes: a base fabric layer formed of an insulating base fabric and including a first base fabric layer surface and a second base fabric layer surface; an electroconductive rubber layer formed by superimposing electroconductive rubber on the first base fabric layer surface; and an electroconductive paste layer formed by coating the second base fabric layer surface with an electroconductive paste material having an electric resistance value lower than that of the electroconductive rubber.

Abstract: A biological electrode that includes an electrode member made of a conductive rubber having a plurality of electrode portions in contact with a body of a subject. The plurality of electrode portions are protrusively formed on an electrode portion forming surface of the electrode member and arranged circularly or concentrically on the electrode portion forming surface. Further, each of the plurality of electrode portions is formed so that a cross-sectional area thereof gradually decreases from a proximal end portion thereof toward a distal end portion thereof and a center of a cross section of the distal end portion is positioned radially outward of a center of a cross section of the proximal end portion as viewed from an arrangement center of the plurality of electrode portions.

Abstract: A microwave treatment apparatus includes a treatment chamber, a microwave supply, and a resonator unit. The treatment chamber is surrounded by a plurality of walls, and accommodates a heating target. The microwave supply supplies a microwave to the treatment chamber. The resonator unit is provided on one wall of the plurality of walls, and the resonator unit has a resonance frequency in a frequency band of the microwave. In this embodiment, the impedance of the surface of the resonator unit can be changed by controlling the frequency of the microwave supplied to the treatment chamber. This makes it possible to control the standing wave distribution within the treatment chamber, that is, the microwave energy distribution within the treatment chamber. As a result, in the cases where a plurality of heating targets need to be heated simultaneously, desired dielectric heating is conducted for each of the heating targets.

Abstract: A biological electrode capable of realizing good contact with a skin of a subject for detection. The biological electrode includes an electrode member, a support shaft member for supporting the electrode member, a frame member for slidably holding the support shaft member in an axial direction thereof, and an elastic member for biasing the electrode member toward the outside in the axial direction of the support shaft member.

Abstract: A microwave heating device includes a heating chamber that accommodates an object to be heated, a microwave generator configured to generate microwaves, a wave guide tube configured to guide the microwaves to the heating chamber, and an electromagnetic field distribution adjustment device that is provided in a two-dimensional region located in at least a part of a wall face within the heating chamber. The electromagnetic field distribution adjustment device has a plurality of metal pieces arranged to fill a predetermined two-dimensional region, and a switch provided between two metal pieces adjacent to each other among the plurality of metal pieces. The switch is connected to the two metal pieces adjacent to each other through two conductors each of which is provided on a corresponding one of the two metal pieces adjacent to each other, and smaller than the two metal pieces adjacent to each other.

Abstract: A microwave heating device includes a heating chamber that accommodates an object to be heated, a microwave generator configured to generate microwaves, a wave guide tube configured to guide the microwaves to the heating chamber, and an electromagnetic field distribution adjustment device provided in a predetermined two-dimensional region within the heating chamber. The electromagnetic field distribution adjustment device has a plurality of metal pieces and a plurality of switches. The plurality of metal pieces are arranged to fill the predetermined two-dimensional region. The plurality of switches connect the plurality of metal pieces with one another. A serially connected row of metal pieces is configured by connecting one metal piece among the plurality of metal pieces to at most two metal pieces adjacent to the one metal piece through at least two of the plurality of switches.

Abstract: There are provided a maternal and fetal monitoring device and a display device for monitoring device including fetal heart rate acquisition means configured to acquire a fetal heart rate, labor pain intensity acquisition means configured to acquire a maternal labor pain intensity, fetal bioelectric signal acquisition means configured to acquire a fetal bioelectric signal, and display means capable of simultaneously displaying a cardiotocogram that displays the fetal heart rate and the labor pain intensity side by side on the same time axis over time as a graph and a fetal bioelectric signal diagram displaying the fetal bioelectric signal, and optimizing and displaying, together with the cardiotocogram, the fetal bioelectric signal diagram and the like closely related to these pieces of information.

Abstract: A rotating antenna (105a) includes: a ceiling surface (109) and a side-wall surface (110) that constitute a waveguide structure (108); and a horn (113) that radiates a microwave into a heating chamber. The rotating antenna (105a) further includes a flange (112) that is formed on a periphery of the side-wall surface (110) so as to face a bottom surface (111), which is an inner wall surface of the heating chamber, and so as to surround the side-wall surface (110). The flange (112) has choke sections (117) that reduce a leakage of the microwave. This configuration can generate a relatively low impedance region so as to surround the side-wall surface (110), thereby enhancing a leakage reducing performance of the rotating antenna (105a) and increasing directivity of the microwave radiated from the rotating antenna (105a).

Abstract: Provided are a fetal electrocardiographic signal processing method and a fetal electrocardiographic signal processing device that can appropriately select a signal reliably including a fetal electrocardiographic component from a plurality of signals separated by independent component analysis with reference.

Abstract: The present invention includes a directional coupler that detects at least part of a reflected wave inside a waveguide. When an object to be heated is absent, a reflected wave is strong, because there is nothing to absorb a microwave. When the object is present, the reflected wave is weak, because the microwave is absorbed by the object. As a quantity of the object becomes greater, a larger amount of microwave is absorbed by the object, and thus the reflected wave is weakened. It is thus possible to determine the quantity of the object from a reflected wave detection amount detected by the directional coupler without using a detector that detects a load.

Abstract: The present invention has a configuration of controlling a motor so as to stop a radiation antenna when the radiation antenna faces in a direction in which a reflected wave detection amount is minimized and to stop the radiation antenna when the radiation antenna faces in a different direction different from the direction in which the reflected wave detection amount is minimized. According to this configuration, first, the radiation antenna stops when facing in the direction in which the reflected wave detection amount is minimized. This extends a heating time under the most efficient condition, improving a heating efficiency in comparison with when the radiation antenna constantly rotates. Second, the radiation antenna stops when facing in the different directions. This causes uneven heating when the radiation antenna faces in the direction in which the reflected wave detection amount is minimized as well as when the radiation antenna faces in the different directions.

Abstract: There are provided heating chamber, and reflection angle control device provided on upper wall configuring at least part of walls of heating chamber and configured to control a reflection angle of a microwave to control standing wave distribution in heating chamber. Reflection angle control device controls the reflection angle of the microwave when the microwave radiated from microwave radiation device is not directly absorbed into heating target but is reflected by the wall. Standing wave distribution in heating chamber can thus be controlled to be different from ordinary distribution for improvement in local heating performance.

Abstract: A microwave treatment apparatus includes a treatment chamber, a microwave supply, and a resonator unit. The treatment chamber is surrounded by a plurality of walls, and accommodates a heating target. The microwave supply supplies a microwave to the treatment chamber. The resonator unit is provided on one wall of the plurality of walls, and the resonator unit has a resonance frequency in a frequency band of the microwave. In this embodiment, the impedance of the surface of the resonator unit can be changed by controlling the frequency of the microwave supplied to the treatment chamber. This makes it possible to control the standing wave distribution within the treatment chamber, that is, the microwave energy distribution within the treatment chamber. As a result, in the cases where a plurality of heating targets need to be heated simultaneously, desired dielectric heating is conducted for each of the heating targets.

Abstract: A microwave heating device includes a heating chamber that accommodates an object to be heated, a microwave generator configured to generate microwaves, a wave guide tube configured to guide the microwaves to the heating chamber, and an electromagnetic field distribution adjustment device provided in a predetermined two-dimensional region within the heating chamber. The electromagnetic field distribution adjustment device has a plurality of metal pieces and a plurality of switches. The plurality of metal pieces are arranged to fill the predetermined two-dimensional region. The plurality of switches connect the plurality of metal pieces with one another. A serially connected row of metal pieces is configured by connecting one metal piece among the plurality of metal pieces to at most two metal pieces adjacent to the one metal piece through at least two of the plurality of switches.

Abstract: A microwave heating device includes a heating chamber that accommodates an object to be heated, a microwave generator configured to generate microwaves, a wave guide tube configured to guide the microwaves to the heating chamber, and an electromagnetic field distribution adjustment device that is provided in a two-dimensional region located in at least a part of a wall face within the heating chamber. The electromagnetic field distribution adjustment device has a plurality of metal pieces arranged to fill a predetermined two-dimensional region, and a switch provided between two metal pieces adjacent to each other among the plurality of metal pieces. The switch is connected to the two metal pieces adjacent to each other through two conductors each of which is provided on a corresponding one of the two metal pieces adjacent to each other, and smaller than the two metal pieces adjacent to each other.

Abstract: A microwave oven includes a waveguide having an E-bend structure with multiple openings disposed on a lateral face of a heating chamber that allow the waveguide to communicate with the heating chamber. The waveguide has a first section for propagating a microwave from a magnetron toward the heating chamber, and a second section having a wide plane that abuts an outer wall of the heating chamber. The openings include at least one circularly-polarized-wave opening for generating a circularly polarized wave. A cross section of the first section orthogonally intersects a tube axis of the first section projects virtually along the tube axis of first section and onto a lateral face of the heating chamber, and the circularly-polarized-wave opening is configured such that its center is located outside the resultant projected region.