Wireless IC tag, and method and apparatus for manufacturing the same
First Claim
1. A wireless IC tag comprising:
- an IC chip having identification information stored therein;
a first antenna having a predetermined length and connected to said IC chip, wherein said IC chip transmits said identification information with use of an operating power generated from a radio wave having a predetermined frequency received via said first antenna;
a first spacer provided between a member and said first antenna for maintaining a distance therebetween, said first spacer being mounted on said member;
a second antenna having a predetermined length for resonating to said radio wave of said predetermined frequency; and
a second spacer provided between said first antenna and said second antenna for maintaining a distance between both antennas,wherein said first antenna and said second antenna are flat antennas insulated from each other by said second spacer, and are disposed in parallel to each other on opposite surfaces of said second spacer.
1 Assignment
0 Petitions
Accused Products
Abstract
In a wireless IC tag, metallic antennas are deposited as thin films on the front and back surfaces of a spacer, made of a heat-resistant glass epoxy material having a desired dielectric constant, to form a first antenna and a second antenna. An IC chip is mounted in the center of the first antenna. The second antenna functions as an auxiliary antenna for resonating to a desired frequency of a transmission radio wave of the first antenna to strengthen the intensity of the radio wave. Accordingly, even when the IC tag is mounted to a cable or the like, the tag can be mounted in the interior of the enclosure of the cable and thus the radio wave intensity of the first antenna can be prevented from being weakened by a metallic member in the cable.
42 Citations
21 Claims
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1. A wireless IC tag comprising:
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an IC chip having identification information stored therein; a first antenna having a predetermined length and connected to said IC chip, wherein said IC chip transmits said identification information with use of an operating power generated from a radio wave having a predetermined frequency received via said first antenna; a first spacer provided between a member and said first antenna for maintaining a distance therebetween, said first spacer being mounted on said member; a second antenna having a predetermined length for resonating to said radio wave of said predetermined frequency; and a second spacer provided between said first antenna and said second antenna for maintaining a distance between both antennas, wherein said first antenna and said second antenna are flat antennas insulated from each other by said second spacer, and are disposed in parallel to each other on opposite surfaces of said second spacer. - View Dependent Claims (2, 3, 4)
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5. A method for manufacturing a wireless IC tag comprising the steps of:
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mounting a first spacer on one surface of a first antenna, which transmits identification information stored in an IC chip; mounting a second spacer on another surface of said first antenna, said another surface being opposite to said one surface; and mounting a second antenna, for resonating to a radio wave having a predetermined frequency together with said first antenna, on a surface of said second spacer opposite to a surface on which said first antenna is mounted, wherein said first antenna and said second antenna are flat antennas insulated from each other by said second spacer, and are disposed in parallel to each other on opposite surfaces of said second spacer. - View Dependent Claims (6)
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7. A method for manufacturing a wireless IC tag, comprising the steps of:
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mounting a first spacer material on one surface of a first antenna material on which a predetermined number of first antennas connected to IC chips having identification information stored therein are arranged on a base material; conveying said first spacer material and said first antenna material forward; mounting a second spacer material on the another surface of said first antenna material, said another surface being opposite to said one surface; conveying said first spacer materials, and said second spacer material and said first antenna material forward; mounting a second antenna material on a surface of said second spacer material opposite to a surface on which said first antenna material is mounted, thereby forming a wireless IC tag material; conveying said wireless IC tag material forward; and sequentially cutting said wireless IC tag material to form wireless IC tags, wherein said first antenna material and said second antenna material are flat antennas insulated from each other by said second spacer material, and are disposed in parallel to each other on opposite surfaces of said second spacer material. - View Dependent Claims (8, 9)
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10. A method for manufacturing a wireless IC tag, comprising the steps of:
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mounting a first spacer material on one surface of a first antenna material on which a predetermined number of first antennas connected to IC chips having identification information stored therein are arranged in a width-wise direction in the form of strips on a base material; conveying said first spacer material and said first antenna material forward; mounting a second spacer material on the another surface of said first antenna material, said another surface being opposite to said one surface; conveying said first spacer material, said second spacer material and said first antenna material forward; mounting a second antenna material, on which a predetermined number of second antennas are arranged, on a surface of said second spacer material opposite to a surface on which said first antenna material mounted thereon in such a manner that a width-wise direction of said first antennas coincides with the width-wise direction of said second antennas, thereby forming a wireless IC tag material; conveying said wireless IC tag material forward; and sequentially cutting said wireless IC tag material to form wireless IC tags, wherein said first antenna material and said second antenna material are flat antennas insulated from each other by said second spacer material, and are disposed in parallel to each other on opposite surfaces of said second spacer material. - View Dependent Claims (11, 12)
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13. An apparatus for manufacturing a wireless IC tag, comprising:
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a first feeder for mounting a plate-shaped first spacer material on one surface of a first antenna material on which a predetermined number of first antennas connected to IC chips having identification information stored therein are arranged on a plate shaped base material in a width-wise direction in the form of strips, and for feeding out said first spacer material and said first antenna material forward; a second feeder for mounting a plate-shaped second spacer material another surface, opposite to said one surface, of said first antenna material, and for feeding out the first spacer material, said second spacer material and said first antenna material forward; a third feeder for mounting a second antenna material on a surface of said second spacer material opposite a surface on which said first antenna material is mounted, thereby forming a wireless IC tag material, and for feeding out the wireless IC tag material; and a cutter for sequentially cutting said wireless IC tag material to form wireless IC tags, wherein said first antenna material and said second antenna material are flat antennas insulated from each other by said second spacer material, and are disposed in parallel to each other on opposite surfaces of said second spacer material.
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14. An apparatus for manufacturing a wireless IC tag, comprising:
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a first feeder for mounting a plate-shaped first spacer material on one surface of a first antenna material on which a predetermined number of first antennas connected to IC chips having identification information stored therein are arranged on a plate shaped base material in width-wise direction in the form of strips, and for feeding out the first spacer material and said first antenna material forward; a second feeder for mounting a plate-shaped second spacer material on another surface, opposite to said one surface, of said first antenna material, and for feeding out the first spacer material, said second spacer material and said first antenna material forward; a third feeder for mounting said plate-shaped second antenna material, on which a predetermined number of second antennas are arranged in a width-wise direction in the form of strips, on a surface of said second spacer material opposite to a surface on which said first antenna material is mounted in such a manner that the width-wise direction position of said first antennas coincides with the width-wise direction position of said second antenna, thereby forming a wireless IC tag, and for feeding out the wireless IC tag; and a cutter for sequentially cutting said wireless IC tag material to form wireless IC tags, wherein said first antenna material and said second antenna material are flat antennas insulated from each other by said second spacer material, and are disposed in parallel to each other on opposite surfaces of said second spacer material.
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15. A wireless IC tag comprising:
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an IC chip having identification information stored therein; a first antenna for wirelessly transmitting the identification information recorded in the IC chip; a substrate made of a heat-resistant insulating material wherein the first antenna is formed on one surface of said substrate and has said IC chip mounted thereon for transmitting the identification information recorded in the IC chip; and a second antenna formed on another surface, opposite to said one surface, of said substrate and for resonating to a radio wave having a predetermined frequency together with said first antenna, wherein said first antenna and said second antenna are flat antennas insulated from each other by said second spacer, and are disposed in parallel to each other on opposite surfaces of said second spacer. - View Dependent Claims (16)
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17. A wireless IC tag for burial in an insulating enclosure of a cable so as to wirelessly transmit identification information recorded in an IC chip, said insulating enclosure functioning as a first spacer, said IC tag comprising:
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a second spacer made of a heat-resistant insulating material; a first antenna formed on one surface of said second spacer and having said IC chip mounted thereon for transmitting the identification information recorded in the IC chip; and a second antenna formed on another surface, opposite said one surface, of said second spacer for resonating to a radio wave having a predetermined frequency at said first antenna, wherein said insulating enclosure functioning as a first spacer maintains a distance between said first antenna and an internal conductor or a shield layer in an interior portion of said cable, and wherein said first antenna and said second antenna are flat antennas insulated from each other by said second spacer, and are disposed in parallel to each other on opposite surfaces of said second spacer.
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18. A method for manufacturing a wireless IC tag for burial in an insulating enclosure of a cable for wirelessly transmitting identification information recorded in IC chips, said insulating enclosure functioning as a first spacer, said method comprising the steps of:
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forming a plurality of first antennas on a first surface of a glass epoxy substrate at equal pitch intervals; forming a plurality of second antennas on a second surface of said glass epoxy substrate at respective positions opposing said first antennas; individually mounting the IC chips on the plurality of first antennas respectively; cutting said glass epoxy substrate into separate wireless IC tags such that each IC tag includes one of said first antennas on said first surface having one of said IC chips mounted thereon and includes one of said second antennas on said second surface; and burying said wireless IC tag in said insulating enclosure during molding of said cable during manufacture of the cable, wherein said plurality of first antennas and said plurality of second antennas are flat antennas, said first antennas being insulated from said second antennas by said glass epoxy substrate, and wherein said first antennas are disposed in parallel to said second antennas and are on opposite surfaces of said glass epoxy substrate.
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19. A wireless IC tag comprising:
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an IC chip having identification information stored therein; a first antenna having a predetermined length and connected to said IC chip; a first spacer provided between a member and said first antenna for maintaining a distance therebetween, said IC chip being mounted on said member; a second antenna having a predetermined length for resonating to a radio wave having a predetermined frequency; and a second spacer provided between said first antenna and said second antenna for maintaining a distance between both antennas, wherein said first antenna and said second antenna are flat antennas insulated from each other by said second spacer, and are disposed in parallel to each other on opposite surfaces of said second spacer. - View Dependent Claims (20, 21)
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Specification