Abstract: An antenna apparatus, which is assembled into an electronic apparatus and made communicatable upon receipt of a magnetic field transmitted from a transmitter, includes a laminated member made by mutually superimposing an antenna coil inductively coupled to the transmitter and formed on an antenna substrate with a magnetic sheet for drawing a magnetic field transmitted from the transmitter to the antenna coil, a film-shaped protective member that covers the laminated member at least up to an end portion of the magnetic sheet, and a communication processing unit that carries out communication to and from the transmitter and is driven by an electric current flowing through the antenna coil.

Abstract: The present invention provides a compact medical X-ray imaging apparatus, which is a portable X-ray imaging apparatus capable of capturing clear X-ray images while maintaining low radiation exposure.

Abstract: The present invention provides an antenna apparatus which can realize favorable communication properties while achieving downsizing of a casing of an electronic device when incorporated in an electronic device. An antenna module (1a) which is incorporated in a mobile phone (130) and which is enabled to perform communication by receiving a magnetic field transmitted from a reader/writer (120) comprises an antenna coil (11a) which is wound in a clearance (132) between an end portion (133b) of a metallic plate (133a) opposing the reader/writer (120) within a casing (131) of the mobile phone (130) and an inner peripheral wall (131a) of the casing (131) so as not to surround an outer peripheral portion of the metallic plate (133a) and which is inductively coupled with the reader/writer (120).

Abstract: An electronic device incorporated with a coil module that achieves favorable communication characteristics is provided. In an electronic device incorporated with a coil module, the coil module includes a loop coil wounded in a planar shape and a sheet-shaped magnetic sheet which is formed of a magnetic material and which overlaps with a part of the loop coil, and the magnetic sheet is arranged on at least one side extending from a center of the loop coil.

Abstract: Provided is a wireless communication system which has excellent communication characteristics even between antenna modules having antenna coils between which there is a large difference in outside diameter. The wireless communication system includes: a first antenna module including a first antenna coil; and a second antenna module including a second antenna coil and capable of communication by receiving a magnetic field transmitted from the first antenna module, in which the first antenna coil and the second antenna coil have mutually different outside diameters, and, out of the first antenna coil and the second antenna coil, the antenna coil having a larger outside diameter is formed in such a way that the area of an opening portion inside the innermost perimeter of an antenna pattern is not more than 120% of the outside diameter area of the other antenna coil having a smaller outside diameter.

Abstract: An electronic device and an antenna device are provided that use a coil module which is thinned without losing the characteristics of the coil module and which can be mounted in a narrowed space. A coil module including a loop-shaped antenna coil wounded in a planar shape and a sheet-shaped magnetic sheet which is formed of a magnetic material and which overlaps with at least a part of the antenna coil is included. In the coil module, a part of the antenna coil is overlapped with an internal structure of a housing and the magnetic sheet is provided in a position that does not overlap with the internal structure on an antenna coil surface side that overlaps with the internal structure.

Abstract: The loss is reduced even when loop coils of a multi-coil module are overlaid with each other. The multi-coil module includes a first coil module, having a first magnetic sheet and a first loop coil provided on the first magnetic sheet and wound in a planar shape, and a second coil module, having a second magnetic sheet and a second loop coil provided on the second magnetic sheet and wound in a planar shape. The first coil module and the second coil module are stacked on each other, and at least an innermost coil pattern of the first loop coil and the second loop coil are overlaid with each other. The line width of the innermost coil pattern t of the first loop coil overlaid with the second loop coil is 1 mm or less.

Abstract: A residual seismic-resistant performance evaluation system includes a seismograph including a seismic intensity sensor, a network interface, a storage, an A/D converter, a temporary storage means and a CPU; a data processing terminal for recording and processing measurement data; and a data processing server for evaluating residual seismic-resistant performance based on the measurement data. The system causes the data processing terminal to perform the steps below: a) calculating seismic intensity data based on the measurement data; b) setting a threshold value for the seismic intensity data; determining whether or not the seismic intensity data exceeds the threshold value; and d) transmitting the seismic intensity data exceeding the threshold value to the data processing server.

Abstract: Provided is an antenna device that achieves good communication characteristics when incorporated into an electronic apparatus. The antenna device incorporated into an electronic apparatus and configured to communicate with an external device via an electromagnetic field signal comprises: a metal plate serving as a first electric conductor, being provided inside a casing of the electronic apparatus and facing the external device; an antenna substrate provided inside the casing of the electronic apparatus, and having an antenna coil inductively coupled to the external device and wound around thereon; and metal foil serving as a second electric conductor in sheet form, being provided inside the casing of the electronic apparatus, overlapping or being in contact with the metal plate serving as the first electric conductor, and at least partially overlapping a surface of the antenna substrate, the surface being opposite to a surface facing the external device.

Abstract: The present provides a variable capacitance element enabling a further reduction in capacitance variation among variable capacitance elements, and provides a packaged circuit including the variable capacitance element. A variable capacitance element is configured to include an element body unit, a compensation unit, a first external terminal for signals, a second external terminal for signals, external terminals for control, and external terminals for capacitance compensation. The compensation unit has second variable-capacitance capacitor units C9 to C 11, each including a second dielectric layer formed of a ferroelectric material, and is connected to the element body unit, and has a capacitance varying according to a control voltage signal.

Abstract: Provided is a portable communication device including a receiver, a transmitter, an adjustment signal generator, an adjustment signal detector, and a control circuit unit. The transmitter transmits an adjustment signal to the receiver in order to adjust a received resonant frequency. The adjustment signal detector detects a parameter including information on a transmission state of the adjustment signal at a time of transmitting the adjustment signal. Then, the control circuit unit corrects a deviation of the received resonant frequency based on a detection result of the adjustment signal detector.

Abstract: A movable body assist device includes a contact receiving body provided in one of a support body or a movable body relatively moving to the support body; a base body supported on a rail provided in one of the support body or the movable body relatively moving to the support body; a hanging wheel including a base provided in the other of the support body or the movable body and a roller supported in the base, and rotatably moving inside the rail, and suspending the other of the support body or the movable body movably on the rail; a contact body formed to swing in a first direction relative to the base body, and formed to engage with and disengage from the contact receiving body; an urging mechanism urging the contact body; and a connection portion connecting the base body to swing relative to the base of the hanging wheel.

Abstract: A movable device for a movable body has a reception body fixed to a support body or the movable body relatively moving to the support body, and includes a plurality of engagement portions protruding from the support body or the movable body by being separated from each other; a base body provided in the other of the support body or movable body; an abutment body formed to move along a movement direction of the movable body, and engaging one of the engagement portions in a case wherein the movable body moves in a movement completion position thereof; and an urging mechanism formed urgingly between the base body and the abutment body, restricting a movement of the base body or abutment body by urging, and releasing restriction of the movement by engagement of the abutment body with one of engagement portions.

Abstract: An antenna device that is built in an electronic device and that can perform communication by receiving a magnetic field transmitted from a transmitter includes an antenna coil formed on a printed circuit board and inductively coupled to the transmitter, and a magnetic sheet that attracts the magnetic field transmitted from the transmitter to the antenna coil. The antenna coil and the magnetic sheet are superposed on each other.

Abstract: An antenna apparatus, which is assembled into an electronic apparatus and made communicatable upon receipt of a magnetic field transmitted from a transmitter, includes a laminated member made by mutually superimposing an antenna coil inductively coupled to the transmitter and formed on an antenna substrate with a magnetic sheet for drawing a magnetic field transmitted from the transmitter to the antenna coil, a film-shaped protective member that covers the laminated member at least up to an end portion of the magnetic sheet, and a communication processing unit that carries out communication to and from the transmitter and is driven by an electric current flowing through the antenna coil.

Abstract: An antenna apparatus is assembled into an electronic apparatus and made communicatable upon receipt of a magnetic field transmitted from a transmitter. The antenna apparatus includes an antenna substrate having an antenna coil inductively coupled to the transmitter formed thereon and a magnetic sheet for use in drawing the magnetic field transmitted from the transmitter to the antenna coil. The magnetic sheet is inserted into a center portion of the antenna coil such that two ends of the magnetic sheet are positioned closer to the center portion than two ends of the antenna coil in an inserting direction thereof.

Abstract: The present invention provides a communication device that can reduce a housing of an electronic device in size and thickness when the communication device is built in the electronic device. The communication device includes: an antenna coil (11a) arranged on an outer peripheral portion (134) of a housing (131) surface facing a reader/writer (120) of a mobile phone (130); a magnetic sheet (13) that attracts a magnetic field transmitted from the reader/writer (120) to the antenna coil (11a); and a communication processing unit (12) that is driven by a current flowing in the antenna coil (11a) and performs communication with the reader/writer (120), wherein the magnetic sheet (13) is arranged on the reader/writer (120) side of the antenna coil (11a) at a center portion (132a), and the antenna coil (11a) is arranged on the reader/writer (120) side on an outer periphery (130d) side.

Abstract: A method for manufacturing an antenna device may include a first step of forming an antenna circuit so that the resonance frequency of the antenna circuit will be lower than an oscillation frequency of the reader/writer. The antenna circuit includes an antenna coil that receives the magnetic field transmitted from the reader/writer and a capacitor electrically connected to the antenna coil. The manufacturing method also includes a second step of affixing a magnetic sheet to the antenna coil via an adhesive. The magnetic sheet is at a face-to-face position with respect to the antenna coil and is configured to change the inductance of the antenna coil. The adhesive is of a film thickness to change the inductance so that the resonance frequency of the resonance circuit will be coincident with the oscillation frequency depending on the spacing between the antenna coil and the magnetic sheet.

Abstract: A method for manufacturing an antenna device is provided. The manufacturing method includes forming an antenna circuit so that the resonance frequency of the antenna circuit will be lower than an oscillation frequency of the reader/ writer and affixing a magnetic sheet to an antenna coil via an adhesive. The antenna circuit includes the antenna coil that receives the magnetic field transmitted from the reader/ writer and a capacitor electrically connected to the antenna coil. The magnetic sheet is at a face-to-face position with respect to the antenna coil and is configured to change the inductance of the antenna coil. The adhesive is of a film thickness to change the inductance so that the resonance frequency of the resonance circuit will be coincident with the oscillation frequency depending on the spacing between the antenna coil and the magnetic sheet.

Abstract: The present invention provides an antenna apparatus which can realize favorable communication properties while achieving downsizing of a casing of an electronic device when incorporated in an electronic device. An antenna module (1a) which is incorporated in a mobile phone (130) and which is enabled to perform communication by receiving a magnetic field transmitted from a reader/writer (120) comprises an antenna coil (11a) which is wound in a clearance (132) between an end portion (133b) of a metallic plate (133a) opposing the reader/writer (120) within a casing (131) of the mobile phone (130) and an inner peripheral wall (131a) of the casing (131) so as not to surround an outer peripheral portion of the metallic plate (133a) and which is inductively coupled with the reader/writer (120).