Abstract: A method of manufacturing RFID tags. A base sheet member is formed by fixedly attaching unit base substrates to a belt-like first sheet member at predetermined space intervals. Each unit base substrate is formed with an antenna pattern and has a non-contact communication-type IC chip mounted thereon. An upper-layer sheet member is formed by arranging reinforcing members between elastic, belt-like second and third sheet members, and is laminated on a surface of the first sheet member toward the unit base substrates such that each IC chip and each reinforcing member overlap each other in plan view. Regions each containing one unit base substrate are sequentially cut out from a laminate of the upper-layer sheet member and the base sheet member, thereby making RFID units.

Abstract: An RFID tag includes: a tag member in which a communication antenna is wired on a predetermined base and a circuit chip which carries out radio communication through the antenna is electrically connected to the antenna, a covering body which covers the tag member and encloses the tag member therein, a reflection plate which reflects radio communication radio wave and which extends along the base, and a spacer sandwiched between the covering body and the reflection plate.

Abstract: An RFID tag includes an inlay which has a base, an antenna formed on the base, and an IC chip. The IC chip is enclosed in a surface mount package and soldered to the antenna and carries out radio communication through the antenna. The RFID tag further includes underfill that fills a gap between the base and the surface mount package, and a sheath protecting material enclosing the entire inlay.

Abstract: An RFID tag includes: a tag main body having a communication antenna, a circuit chip electrically connected to the antenna to perform wireless communication via the antenna, and a tabular sealing member in which the antenna and the circuit chip are enclosed; a print layer formed on a first surface of the tag main body by printing; and a protective film that covers the print layer. The print layer is formed only in a central area of the first surface surrounded by a marginal area of the first surface extending along the outer edge of the first surface. The protective film includes a covering portion that covers the print layer and an adhering portion that lies off the print layer while surrounding the outer edge of the print layer and adheres to the first surface.

Abstract: One purpose is to provide a user friendly IC card reading apparatus conforming to different communication standards. A linear power amplifier supplies an antenna circuit with a power source voltage for Type A which is supplied from a power supply switching circuit when transmitting a radio signal of Type A, while supplying the antenna circuit with a power source voltage for Type B which is supplied from the power supply switching circuit when transmitting a radio signal of Type B, based on the instructions of a CPU. This makes it possible to read out of IC cards of both Type A and Type B.

Abstract: An RFID tag is constructed by pasting a first component and second component together. The first component includes a tabular first base made of dielectric and a metal layer covering one of the front and back of the first base. The second component includes a sheet-like second base, a metal pattern provided on the second base and electrically connected to the metal layer of the first component to constitute a communication antenna, a circuit chip connected to the metal pattern which carries out a radio communication through the communication antenna, and an adhesive material layer which bonds the second base to the other of the front and back of the first base. The metal layer of the first component and the metal pattern of the second component are electrically connected by the conductive component.

Abstract: A RFID tag includes a base that extends in a predetermined longitudinal direction; an antenna for communication that is wired on the base; a circuit chip that is electrically connected to the antenna and conducts radio communication via the antenna; and a sealant that covers a top of the circuit chip and seals the circuit chip in cooperation with the base. A portion of the antenna that is exposed without being covered with the sealant extends in the width direction perpendicular to the longitudinal direction.

Abstract: The RFID tag includes: a main unit consisting of a base, a communication antenna that is wired on the base, a circuit chip that is electrically connected to the antenna and performs radio communication via the antenna, a chip reinforcing member covering the periphery of the circuit chip, an underside reinforcing member that is disposed at a position that sandwiches the base with respect to the chip reinforcing member, and a rubber cover member that covers these components; and protective layers that sandwich the main unit from the front and rear sides and have greater slipperiness than the slipperiness between the main unit and a contactant.

Abstract: The RFID tag includes a base that can bend and unbend; a communication antenna wired on the base; a circuit chip that is electrically connected to the antenna and performs radio communication via the antenna; a reinforcing member as a chip reinforcing member that covers at least the periphery of the circuit chip and a section of the antenna wiring, the covering preformed at least in an upper side with respect to the base designated as a bottom, and that has a concavo-convex shape and intersects with the antenna wiring at a concave section of the concavo-convex shape; and an adhesive that adheres the reinforcing member to the base, and in which an edge along a concave section of the edge of the reinforcing member traverses over the antenna.

Abstract: An RFID tag having a tag antenna and an LSI chip, comprising: a power-supply pattern on which the LSI chip is mounted; a patch antenna that functions as the tag antenna; and a high-frequency connection section that makes a high-frequency connection between the power-supply pattern and the patch antenna. The high-frequency connection section is formed, for example, by forming a slot in the patch antenna, layering one end of a small dipole antenna that functions as the power-supply pattern over the slot so that it crosses over the slot, and supplying power from the small dipole antenna to the patch antenna.

Abstract: A RFID tag, which decreases a bending stress and simultaneously prevents an antenna break, is provided. The RFID tag includes a base, an antenna for communication which extends on the base, a circuit chip which performs radio communication through the antenna. The RFID tag further includes a chip reinforcement member which covers a periphery of the circuit chip and a portion of the antenna and a covering member which cover the base, the antenna, the circuit chip and the chip reinforcement member. The covering member is more flexible than the chip reinforcement member.

Abstract: An RFID tag unit is constituted of a seal member part, a substrate material part layered on the seal member part, and a print member part layered on the substrate material part. An RFID tag that comprises an LSI chip, an antenna and an impedance adjustment part is formed on the surface of the substrate material part. Of the seal member part and substrate material part, a part positioned under the impedance adjustment part is cut off, and an impedance adjustment part cutoff part is equipped in the cutoff area. Cutting the impedance adjustment part cutoff part off the RFID tag unit cuts the impedance adjustment part, which has been connected to the antenna, from the RFID tag.

Abstract: The present invention provides an RFID tag that is very effective in preventing fraudulent uses. The RFID tag includes a base, an antenna pattern provided on the base, a breakdown pattern provided on the base, a circuit chip connected to both the antenna pattern and the breakdown pattern, and a cover that is bonded to the base in a strippable condition so as to cover the antenna pattern, the breakdown pattern and the circuit chip and is caused to come off together with all or a part of the breakdown pattern during stripping from the base. The breakdown pattern is transparent, or the cover conceals a remaining part of the breakdown pattern, or the breakdown pattern has a specific part that produces predetermined electrical properties and the cover conceals the specific part.

Abstract: In order to provide a compact loop antenna, for use in an inductive read/write apparatus, capable of extending a communication range even if the antenna area or power supply thereto is constrained, a compact loop antenna, for use in an inductive read/write apparatus, comprises two layers of loop antennas, each thereof comprising a printed circuit board 2 for featuring a loop pattern 1, a loop pattern 1 formed by an etching process on the printed circuit board 2, and a start terminal 3 and a end terminal 4 for supplying power for signal transmission and outputting a received signal and each thereof maintaining a predetermined distance from each other.

Abstract: One purpose is to provide a user friendly IC card reading apparatus conforming to different communication standards. A linear power amplifier supplies an antenna circuit with a power source voltage for Type A which is supplied from a power supply switching circuit when transmitting a radio signal of Type A, while supplying the antenna circuit with a power source voltage for Type B which is supplied from the power supply switching circuit when transmitting a radio signal of Type B, based on the instructions of a CPU. This makes it possible to read out of IC cards of both Type A and Type B.

Abstract: In order to provide a compact loop antenna, for use in an inductive read/write apparatus, capable of extending a communication range even if the antenna area or power supply thereto is constrained, a compact loop antenna, for use in an inductive read/write apparatus, comprises two layers of loop antennas, each thereof comprising a printed circuit board 2 for featuring a loop pattern 1, a loop pattern 1 formed by an etching process on the printed circuit board 2, and a start terminal 3 and a end terminal 4 for supplying power for signal transmission and outputting a received signal and each thereof maintaining a predetermined distance from each other.

Abstract: An RFID tag is constructed by pasting a first component and second component together. The first component includes a tabular first base made of dielectric and a metal layer covering one of the front and back of the first base. The second component includes a sheet-like second base, a metal pattern provided on the second base and electrically connected to the metal layer of the first component to constitute a communication antenna, a circuit chip connected to the metal pattern which carries out a radio communication through the communication antenna, and an adhesive material layer which bonds the second base to the other of the front and back of the first base. The metal layer of the first component and the metal pattern of the second component are electrically connected by the conductive component.

Abstract: It is an object of the present invention to improve mechanical durability of a portable display device using cholesteric liquid crystal with a memory function such as a non-contact IC card. A display element comprising two substrates 1 which oppose each other and a display portion (liquid crystal) 2 which is sandwiched by the substrates 1, comprises a wall structure 3 bearing a substrate on portions other than the display portion 2, in which the wall is perpendicular to the substrate 1 and a surface perpendicular to the wall is adhered to the substrate 1. Further, in the above display element, an area of the surface which is adhered to the substrate 1 is larger than an area of a surface of the display portion 2 which faces the substrate 1.

Abstract: In an IC card, cholesteric liquid crystal layers reflecting red light and a cholesteric liquid crystal layer reflecting blue light, in a planar state, are laminated, and a voltage is respectively applied to the laminated cholesteric liquid crystal layers, to change the orientation of the cholesteric liquid crystals between the planar state and a focal conic state, so as to transmit or reflect light, thereby displaying predetermined information.

Abstract: The present invention provides an RFID tag that is very effective in preventing fraudulent uses. The RFID tag includes a base, an antenna pattern provided on the base, a breakdown pattern provided on the base, a circuit chip connected to both the antenna pattern and the breakdown pattern, and a cover that is bonded to the base in a strippable condition so as to cover the antenna pattern, the breakdown pattern and the circuit chip and is caused to come off together with all or a part of the breakdown pattern during stripping from the base. The breakdown pattern is transparent, or the cover conceals a remaining part of the breakdown pattern, or the breakdown pattern has a specific part that produces predetermined electrical properties and the cover conceals the specific part.