Abstract: A pulse wave measurement device of the present invention includes a transmitter configured to emit a radio wave toward a measurement target site, a receiver configured to receive the radio wave reflected from the measurement target site, and a pulse wave detector configured to detect, based on an output of the receiver, a pulse wave signal representing a pulse wave of an artery passing through the measurement target site. The radio wave emitted from the transmitter has a bandwidth narrowed by a predetermined bandwidth index.

Abstract: A health device flow path formation member (500) includes a flow path (604) configured to supply fluid to a target supply member, a first opening portion (601) located at a first end of the flow path, a second opening portion (602) located at a second end of the flow path, a connection path (603), a plate-like member (610) including the connection path (603), and a joining layer (620) including the first opening portion (601), the joining layer (620) joining the plate-like member (610) to a first target attachment member (32) with the first opening portion (601) communicating with a fluid path (32a) of the first target attachment member (32). When viewed in a first direction in which the joining layer (620) and the plate-like member (610) overlap, the first opening portion (610) is disposed inward a distance from a profile line of a projection of the connection path (603) in the first direction, forming a first protrusion portion in the joining layer (620) that protrudes inward from the profile line.

Abstract: A blood pressure estimation device includes a display unit (10), a belt portion (20), a first contact electrode (61) and a second contact electrode (62) for detecting an electrocardiographic waveform, and a pulse wave sensor. The display unit (10) displays a blood pressure estimation result. The belt portion (20) is connected to the display unit (10) and surrounds a target measurement site. The pulse wave sensor includes a pulse wave detection unit (40E) that detects a pulse wave of an artery (91) passing through the target measurement site. The first contact electrode (61) and the pulse wave detection unit (40E) are provided on an inner circumferential portion (20a) of the belt portion (20). The second contact electrode (62) is provided on an outer circumferential portion (20b) of the belt portion (20).

Abstract: A biometric antenna device of the present invention includes: a conductor layer configured to face the measurement site for emitting and/or receiving the radio wave; and a dielectric layer mounted along a facing surface facing the measurement site of the conductor layer or of a base material mounting the conductor layer and extending in parallel with the conductor layer, the dielectric layer having a predetermined relative permittivity. The dielectric layer keeps a distance between an outer surface of the measurement site and the conductor layer constant, in a mounted state in which a second surface on a side opposite to a side of a first surface on a side along the conductor layer of the dielectric layer abuts on an outer surface of the measurement site.

Abstract: An antenna device for biological measurement according to the present invention includes a belt to be worn as surrounding a measurement target site of a living body. A transmission/reception antenna group is provided to the belt and includes a plurality of antenna elements. In a wearing state where the belt is worn as surrounding an outer surface of the measurement target site, a radio wave is emitted toward the measurement target site using any one of the antenna elements as a transmission antenna. A reflected radio wave is received using any one of the antenna elements as a reception antenna. A transmission/reception antenna pair formed of the transmission antenna and the reception antenna is selected by switching or weighted among the plurality of antenna elements based on a reception output.

Abstract: The plaque detecting device of the present invention comprises a light emitting unit (450) which irradiates ultraviolet or blue excitation light (L) toward the tooth surface (99a), and a first and second light receiving units (402) which receive radiated light (L?) from the tooth surface (99a). The first light receiving unit extracts the spectral component of a first wavelength region including the wavelength range of fluorescent light specific to plaque from the radiated light (L?), and obtains a first output value corresponding to the intensity of that spectral component. The second light receiving unit extracts, from the radiated light (L?), the spectral component of a second wavelength region containing the wavelength range of the fluorescent light specific to enamel and having a predetermined lower limit wavelength below the lower limit wavelength of the first wavelength region, and obtains a second output value corresponding to the intensity of this spectral component.

Abstract: A pulse wave measurement device including: a belt to be worn around a measurement target site; first and second pulse wave sensors that are mounted on the belt spaced from each other with respect to a width direction of the belt, and that detect pulse waves of opposing portions of an artery passing through the measurement target site; a pressing unit that is mounted on the belt is capable of changing pressing forces of the pulse wave sensors against the measurement target site; a waveform comparing unit that acquires pulse wave signals which are time-sequentially output by the pulse wave sensors respectively, and compares waveforms of the pulse wave signals; and a pulse wave sensor pressing force setting unit that variably sets the pressing forces by the pressing unit such that the waveforms of the pulse wave signals compared by the waveform comparing unit become identical to each other.

Abstract: A sphygmomanometer includes: a first fluid bag that is to be worn around a measurement site; first and second pulse wave sensors that are mounted on first fluid bag, and detect pulse waves of respective opposing areas of an artery running along measurement site; pressing parts that locally presses areas corresponding to first and second pulse wave sensors from an outer circumference side, opposite of an inner circumference side of first fluid bag where first and second pulse wave sensors are mounted. Blood pressure is calculated based on pulse transit time obtained from outputs from first and second pulse wave sensors, with first fluid bag in an unpressurized state and first and second pulse wave sensors being pressed by a pressing force of the pressing part. Blood pressure is calculated, for oscillometric blood pressure measurement, based on pressure within first fluid bag with first fluid bag in a pressurized state.

Abstract: A first and second pulse wave sensor is mounted on the belt in a state of being separated from each other in the width direction. The belt is mounted around the measurement site, the member presses the first and second pulse wave sensors against the measurement site with a predetermined pressing force. Each of the pulse wave sensors detects a pulse wave in a facing portion of an artery passing through the measurement site. The body motion detection unit detects the presence or absence of body motion. When there is no body motion, the control unit sets a force of the pressing member to a pressing force to measure a pulse wave with the sensors. When there is body motion, the control unit sets a force of the pressing member to a second force lower than the first force and higher than zero and interrupts measurement of a pulse wave.

Abstract: A toothbrush of the present invention includes: a main body including a head portion having a bristle raising surface on which bristles are provided in a standing manner; a light emission unit configured to emit light through a specific region of the bristle raising surface to a tooth surface; and a light reception unit configured to receive radiated light from the tooth surface resulting from the light through the specific region, the light emission unit and the light reception unit being provided in the main body. The toothbrush also includes a detection unit configured to collectively detect whether or not dental plaque or dental calculus is present on the tooth surface based on an output from the light reception unit. The toothbrush further includes a determination unit configured to determine that dental calculus is present on the tooth surface.

Abstract: A controller switches a measurement unit from a non-measurement state to a measurement state to start measurement processing of the measurement target physical amount when a trigger condition having a lowest variation level for a steady state is satisfied in plural trigger conditions set according to a trigger physical amount detected by a trigger detector, and the controller interrupts currently-performed measurement processing to start measurement processing corresponding to a trigger condition having a higher variation level when the trigger condition having the variation level for the steady state higher than that of the trigger condition corresponding to the currently-performed measurement processing is satisfied during performance of the measurement processing.

Abstract: A toothbrush includes a main body that includes a head portion with a bristle raising surface on which bristles are provided in a standing manner, a grip portion, and a neck portion. A light emission portion that emits light through a specific region of the bristle raising surface toward a tooth surface and a light reception portion that receives radiated light from the tooth surface resulting from the light, through the specific region, are provided inside of the main body. It is determined whether or not there is dental plaque on the tooth surface based on the output of the light reception portion. A light reception and condensing portion that condenses the radiated light from the tooth surface toward the light reception surface of the light reception portion is arranged in the housing portion forming the specific region.

Abstract: A toothbrush including a main body having a shape which is narrow and long in one direction; and a brush member which has a cylindrical shape and which is mounted to an end section in the lengthwise direction of the main body. The brush member includes: a head part which has a raised surface, on which bristles are erected, along the lengthwise direction of the main body to which the brush member is mounted; and a neck part which is mounted by engaging with the periphery of the end section of the main body. In the head part, a back surface on the opposite side of the raised surface is opened, and the neck part is provided with a detachment prevention mechanism that prevents the end of the main body to which the brush member is mounted from detaching.

Abstract: A method for forming a color filter array includes a step of exposing a photosensitive color filter film, a step of forming a color filter array from the color filter film by developing the color filter film using a developer, and a step of cleaning the color filter array while rotating the color filter array and moving a nozzle for spraying fluid containing liquid and gas above the color filter array in a direction intersecting with an axis of the rotation. The method reduces variation in thickness of a color filter that is generated in the cleaning step.

Abstract: An exercise assistance apparatus, an exercise assistance method, and an exercise assistance program, according to which it is possible to cause a user to perform exercise at an appropriate load. An exercise assistance apparatus includes: a pulse measurement unit that measures a pulse rate of a user, a movement pace measurement unit that measures a movement pace of the user and a guide unit that guides the movement pace of the user based on a pulse rate range set in advance by the user, the pulse rate measured by the pulse measurement unit, and the movement pace measured by the movement pace measurement unit.

Abstract: A belt includes a belt main body extending in a long, narrow band. A frame-shaped body is attached to a first belt portion corresponding to a side on an end in a lengthwise direction of the belt main body. Multiple through-holes are formed in alignment in the lengthwise direction in a second belt portion corresponding to a side opposite to the first belt portion in the lengthwise direction of the belt main body. A locking member is included for attachment to a through-hole of the second belt portion so as to protrude from a front surface of the second belt portion. When the belt main body is mounted on the target object, the second belt portion is passed through the frame-shaped body, and the side of the frame-shaped body locks the locking member so as to prevent the second belt portion from coming out of the frame-shaped body.

Abstract: An exercise assistance apparatus, an exercise assistance method, and an exercise assistance program, according to which it is possible to cause a user to perform exercise at an appropriate load. An exercise assistance apparatus includes: a pulse measurement unit that measures a pulse rate of a user, a movement pace measurement unit that measures a movement pace of the user and a guide unit that guides the movement pace of the user based on a pulse rate range set in advance by the user, the pulse rate measured by the pulse measurement unit, and the movement pace measured by the movement pace measurement unit.

Abstract: A measurement device has a sensor that generates current by electromagnetic coupling to a power line, a measurement circuit that measures one of voltage and power, the voltage and the power being obtained by the current generated in the sensor according to voltage at the power line, a conductive member electrically connected to a signal ground line of the measurement circuit, and an insulating member that brings the conductive member close to an external conductor and insulates the conductive member from the external conductor.

Abstract: A method of manufacturing a solid-state image sensor is provided. The method comprises preparing a structure which is covered by a protective film, depositing a first material by using a first color filter material on the protective film, forming a first color filter from the first material, depositing a second material by using a second color filter material after the forming the first color filter and forming a second color filter from the second material. An upper surface of the protective film has a concave portion. A part of the first material enters the concave portion in the depositing the first material, the first material is patterned so as to form a member in the concave portion from the first material in the forming the first color filter and the second material covers the member in the depositing the second material.

Abstract: A belt of the present invention includes a belt main body (10) that extends in the form of a long. narrow band. A frame-shaped body (13) is attached to a first belt portion (11) corresponding to a side on an end in a lengthwise direction (Y) of the belt main body (10). Multiple through-holes (21, 22; 21, 22; . . . ) are formed in alignment in the lengthwise direction (Y) in the second belt portion (12) corresponding to a side opposite to the first belt portion (11) in the lengthwise direction (Y) of the belt main body (10). A locking member (14) is included which is to be attached to a through-hole (21, 22) of the second belt portion (12) so as to protrude from a front surface (12a) of the second belt portion (12).