Abstract: A highly reliable RFID tag is provided that is lighter and smaller and has a desired communication distance, and that can be applied to deformable articles. The RFID tag includes a first end of a first power feeding coil that is connected to a first input and output terminal of an RFIC element, a second end of the first power feeding coil that is connected to one end of a second power feeding coil, and the other end of the second power feeding coil is connected to a second input and output terminal of the RFIC element. Moreover, the RFID tag has a spring-shaped antenna that has a first region with magnetic field coupling of the first power feeding coil, and a second region with magnetic field coupling of the second power feeding coil. The first region and the second region are continuous via a region having an inductance component.

Abstract: A watch with a built-in tag that includes a display displaying a time, a metal case having a through-hole in a side surface, a metal crown disposed to enable opening and closing of the through-hole, and a wireless communication device housed inside the case. The crown includes a head located outside the case and coming into contact with the case to close the through-hole, and a shank extending to the inside of the case through the through-hole with one end portion connected to the head and the other end portion located inside the case. When the head of the crown is pulled in a direction away from the case, the head of the crown becomes contactless with the case to enable a reader device located outside the case to read information of the wireless communication device through the crown.

Abstract: A highly reliable RFID tag is provided that is lighter and smaller and has a desired communication distance, and that can be applied to deformable articles. The RFID tag includes a first end of a first power feeding coil that is connected to a first input and output terminal of an RFIC element, a second end of the first power feeding coil that is connected to one end of a second power feeding coil, and the other end of the second power feeding coil is connected to a second input and output terminal of the RFIC element. Moreover, the RFID tag has a spring-shaped antenna that has a first region with magnetic field coupling of the first power feeding coil, and a second region with magnetic field coupling of the second power feeding coil. The first region and the second region are continuous via a region having an inductance component.

Abstract: A highly reliable RFID tag is provided that is lighter and smaller and has a desired communication distance, and that can be applied to deformable articles. The RFID tag includes a first end of a first power feeding coil that is connected to a first input and output terminal of an RFIC element, a second end of the first power feeding coil that is connected to one end of a second power feeding coil, and the other end of the second power feeding coil is connected to a second input and output terminal of the RFIC element. Moreover, the RFID tag has a spring-shaped antenna that has a first region with magnetic field coupling of the first power feeding coil, and a second region with magnetic field coupling of the second power feeding coil. The first region and the second region are continuous via a region having an inductance component.

Abstract: A UHF band RFID tag with stable communication characteristics when attached to a metal surface. The UHF band RFID tag includes a resin block having a first surface serving as an attaching surface to the metal surface and a second surface opposing the first surface, a substrate on a second surface side of the resin block, a RFIC element mounted on the substrate, and a loop electrode connected to the RFIC element. The loop electrode includes metal bodies provided in the resin block and extending in a direction intersecting the first and second surfaces, a flat plate electrode on a first surface side of the resin block and connecting first ends of the metal bodies, conductor patterns on the second surface side of the resin block and connecting the RFIC element and second ends of metal bodies.

Abstract: A UHF band RFID tag with stable communication characteristics when attached to a metal surface. The UHF band RFID tag includes a resin block having a first surface serving as an attaching surface to the metal surface and a second surface opposing the first surface, a substrate on a second surface side of the resin block, a RFIC element mounted on the substrate, and a loop electrode connected to the RFIC element. The loop electrode includes metal bodies provided in the resin block and extending in a direction intersecting the first and second surfaces, a flat plate electrode on a first surface side of the resin block and connecting first ends of the metal bodies, conductor patterns on the second surface side of the resin block and connecting the RFIC element and second ends of metal bodies.

Abstract: A watch with a built-in tag that includes a display displaying a time, a metal case having a through-hole in a side surface, a metal crown disposed to enable opening and closing of the through-hole, and a wireless communication device housed inside the case. The crown includes a head located outside the case and coming into contact with the case to close the through-hole, and a shank extending to the inside of the case through the through-hole with one end portion connected to the head and the other end portion located inside the case. When the head of the crown is pulled in a direction away from the case, the head of the crown becomes contactless with the case to enable a reader device located outside the case to read information of the wireless communication device through the crown.

Abstract: A highly reliable RFID tag is provided that is lighter and smaller and has a desired communication distance, and that can be applied to deformable articles. The RFID tag includes a first end of a first power feeding coil that is connected to a first input and output terminal of an RFIC element, a second end of the first power feeding coil that is connected to one end of a second power feeding coil, and the other end of the second power feeding coil is connected to a second input and output terminal of the RFIC element. Moreover, the RFID tag has a spring-shaped antenna that has a first region with magnetic field coupling of the first power feeding coil, and a second region with magnetic field coupling of the second power feeding coil. The first region and the second region are continuous via a region having an inductance component.

Abstract: In a laminated coil component include coil conductors are respectively included on magnetic layers and a carbon paste is included on a magnetic layer. The coil conductors include a partial coil conductor and a partial coil conductor respectively corresponding to an outer side portion circle and an inner side portion circle defining two circles. A width of the carbon paste at least partially overlaps an interval between the outer side portion circle and the inner side portion circle defining the two circles, and extends circularly along the two circles. The carbon paste is shifted to the interval between the outer side portion circle and the inner side portion circle defining the two circles at the time of pressure-bonding the magnetic layers. The carbon paste vanishes when being calcined to define an air gap.

Abstract: In a laminated coil component include coil conductors are respectively included on magnetic layers and a carbon paste is included on a magnetic layer. The coil conductors include a partial coil conductor and a partial coil conductor respectively corresponding to an outer side portion circle and an inner side portion circle defining two circles. A width of the carbon paste at least partially overlaps an interval between the outer side portion circle and the inner side portion circle defining the two circles, and extends circularly along the two circles. The carbon paste is shifted to the interval between the outer side portion circle and the inner side portion circle defining the two circles at the time of pressure-bonding the magnetic layers. The carbon paste vanishes when being calcined to define an air gap.