Abstract: A multi-function card has a non-contact IC card function, a magnetic stripe card function, a function of generating a magnetic card signal and an NFC signal, and a Bluetooth function capable of transmitting a signal to devices such as smartphones. The multi-function card includes a metallic frame, and is robust against bending or breakage. A transmission/reception sensor system is used for the multi-function card or the like, and for a wearable device. The transmission/reception sensor system includes a magnetic sensor 10 including a coil 2 wound around a magnetic sensor core 1, and an NFC coil 12 formed in a planar shape. A metallic frame having of a loop shape is installed along the NFC coil 12 and includes one or more cut portions.

Abstract: Provided are a multi-function card that has a non-contact IC card function, a magnetic stripe card function, and a function of generating a magnetic card signal and an NFC signal, a Bluetooth function capable of transmitting a signal to devices such as smartphones, includes a metallic frame, and is robust against bending or breakage, a transmission/reception sensor system used for the multi-function card or the like, and a wearable device, and the transmission/reception sensor system includes a magnetic sensor 10 including a coil 2 wound around a magnetic sensor core 1, an NFC coil 12 formed in a planar shape, and a metallic frame 13a of a loop shape which is installed along the NFC coil 12 and includes one or more cut portions.

Abstract: A universal IC tag comprises a metal sheet M1 having a hollow slot functioning as an antenna; plastic sheets laminated on the front and the rear surfaces of the metal sheet M1; an IC arranged in the hollow slot, and a metal sheet M2 laminated on the rear plastic sheet having a reflecting amplifying function. Such universal IC tag can transmits/receive maximum energy by matching IC impedance with slot impedance and by attaining resonance between an IC capacitor and a slot inductance.

Abstract: A universal IC tag comprises a metal sheet M1 having a hollow slot functioning as an antenna; plastic sheets laminated on the front and the rear surfaces of the metal sheet M1; an IC arranged in the hollow slot, and a metal sheet M2 laminated on the rear plastic sheet having a reflecting amplifying function. Such universal IC tag can transmits/receive maximum energy by matching IC impedance with slot impedance and by attaining resonance between an IC capacitor and a slot inductance.

Abstract: When a conventional sensor or tag is sandwiched by a plurality of metal planes, the condition is deteriorated and the sensitivity is lowered. Provided is multiplane imaging system using MISEMAS (Multi-Image Effect and Separation Method for Magnetic Sensor and Tag) in which the sensitivity is not lowered, but rather enhanced, and it is possible to separate and select each of the tags without causing interference with adjacent sensor coils SC1, SC2, SC3, SC4 or tags R1, R2, R3, R4, thereby enabling an effective use of a current on the metal surface and a magnetic path.

Abstract: The invention provides a system for improving communication statuses among a sensor, a tag and a non-contact type IC card for RFID (Radio Frequency Identification). In the present system, a resonator is added to a sensor a tag, or non-contact type IC card. The resonator is constituted by a coil and a capacitor. Further a magnetic substance is attached to the coil of the resonator so as to intensify the magnetic field.

Abstract: The present invention provides an axially symmetric vertical magnetic field component sensor system capable of intensifying vertical magnetic field components. The sensor system comprises an axially symmetrical magnetic substance comprising a circular, oval or polygonal shaped flat disk and a protrusion formed on a center of the flat disk. The sensor system is used for a response system having an IC wound by a coil which generates signals and the sensor system is mounted on a metal surface or buried in a hollow formed on the metal surface.

Abstract: The present invention provides a system for improving communication statuses among a sensor, a tag and a non-contact type IC card for RFID (Radio Frequency Identification). In the present system, a resonator 8 is added to a sensor (Sensor) a tag T, or non-contact type IC card C. The resonator 8 is constituted by a coil 5 and a capacitor 7. Further a magnetic substance 6 is attached to the coil 5 of the resonator 8 so as to intensify the magnetic field.

Abstract: The present invention provides an axially symmetric vertical magnetic field component sensor system capable of intensifying vertical magnetic field components. The sensor system comprises an axially symmetrical magnetic substance comprising a circular, oval or polygonal shaped flat disk and a protrusion formed on a center of the flat disk. The sensor system is used for a response system having an IC wound by a coil which generates signals and the sensor system is mounted on a metal surface or buried in a hollow formed on the metal surface.

Abstract: When a conventional sensor or tag is sandwiched by a plurality of metal planes, the condition is deteriorated and the sensitivity is lowered. Provided is multiplane imaging system using MISEMAS (Multi-Image Effect and Separation Method for Magnetic Sensor and Tag) in which the sensitivity is not lowered, but rather enhanced, and it is possible to separate and select each of the tags without causing interference with adjacent sensor coils SC1, SC2, SC3, SC4 or tags R1, R2, R3, R4, thereby enabling an effective use of a current on the metal surface and a magnetic path.

Abstract: A sensor system, which can be embedded in a metal bed or metal face and has a good performance, has been demanded. A sensor system arranged in the following manner fulfills the above-mentioned demand. When the sensor system employs a square bracket shaped magnetic substance core, a magnetic path is formed and a strong magnetic field vertical to the metal face is obtained, even if the square bracket shaped magnetic substance core is embedded in a concave of the metal bed. A strong vertical magnetic field is obtained in the center portion of a combined magnetic substance cores even by using a surface current on the metal face.

Abstract: The present invention provides a coil system comprising an eccentrically coiled magnetic substance capable of exciting vertical magnetic field components in its center portion and preventing sensitivity of the coil system deteriorating in its center. In the coil system comprising a magnetic substance 6 and a coil 2, no coil is wound around a center portion of the magnetic substance 6, but a coil is wound around one end portion of the magnetic substance. When the coil system is mounted on a metal surface, it can excites vertical magnetic field components to the metal surface without deteriorating sensitivity in the center of a tag or sensor arranged above the coil system.

Abstract: An object of the present invention is to provide a means, which is not projected from a metal wall, and can be communicated with a noncontact IC card, and a sensor at higher precision even if an antenna is arranged in a plane form.

Abstract: There is provided with a responder system having a coil for noncontact connection in response to input or output, using an IC tag, which is stably adhered to an objective article such as metal or plastic, which is an insulating material or an induced material.

Abstract: A flat slot array antenna as composed of a waveguide having a rectangular sectional shape, and a power feeder means connected to the waveguide at a power feed opening. A plurality of wave radiation slots are formed within one of the metallic plates forming the waveguide. The length of each slot is progressively increased toward a terminal end of the power propagation within the space of the waveguide within a range which does not exceed the resonance length of the slot, and the distance between the slots is progressively reduced toward the terminal end of the waveguide.

Abstract: A pair of opposite metallic plates are disposed at an interval with respect to each other so as to form a wave guide space without side plates. A plurality of power radiating slots are formed within one of the metallic plates. A lens antenna is provided for forming a flat equiphase plane wave at the power feed opening of the wave guide space, so that the power is propagated within the wave guide space in the TE mode and radiated from the slots.

Abstract: A slot array antenna is composed of a rectangular waveguide formed by means of oppositely disposed plates and side plates, and a power feeder means connected to the rectangular waveguide at a power feed opening. A plurality of wave radiation slots are formed within one of the plates. The power feeder means is arranged such that two powers fed therein are changed into two plane waves, at the power feed opening, having two independent dominant modes. The slots comprise longitudinal slots extending in a longitudinal direction of the waveguide and lateral slots extending in a lateral direction of the waveguide so as to radiate two plates waves respectively.

Abstract: This invention provides a flat circular waveguide device which permits uniform radiation or power through a plurality of power-radiating openings in order to increase the antenna gain in the technical field of electric communications, especially, broadcasting antennas. To achieve such uniform radiation of power, the device is equipped with means for feeding power from a peripheral wall of a wave-guiding space, which is surrounded by metallic walls, toward a central part of the wave-guiding space.

Abstract: The present invention relates to telecommunication technology and broadcasting antenna technology. The power-feeding portion and the wave-guiding space, and the power-feeding wave-guiding space and the power-radiating wave-guiding space are matched for the effective radiation of the fed power. A conical matching body is disposed within the wave-guiding space with the apex thereof directed toward a power-feeding opening; the junction of the power-feeding wave-guiding space and the power-radiating wave-guiding space is formed in a sectional shape of a semicircle, a hemihedral polygon or a desired curvilinear shape; the power-feeding wave-guiding space the power-radiating wave-guiding space are matched in impedance; or a matching body is provided at the junction of the power-feeding wave-guiding space and the power-radiating wave-guiding space.