Wireless identification tag
First Claim
1. A wireless identification tag mixed in a cement product in the manufacturing procedure thereof in which cement, an aggregate, and water, are mixed, said wireless identification tag comprising:
- a main body having an antenna portion which can write/read information by radio communication; and
a protection body covering the main body, wherein a plurality of concave portions are provided on the surface of the protection body,wherein the protection body is formed of an alkali-resistant polyamide resin reinforced with non-magnetic-permeable glass fibers and inorganic fillers,wherein a size of the wireless identification tag is approximately the same as a size of the aggregate,wherein a depth of each of the concave portions is in a range of from approximately 0.2 mm to approximately 0.5 mm; and
wherein a specific gravity of the wireless identification tag is in a range of from 1.3 to 1.9.
1 Assignment
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Accused Products
Abstract
The present invention is aimed at providing a wireless identification tag which can save information with high reliability that is free from the possibility of being lost or falsified, is not broken or melt in the concrete, can expand directionality of an antenna, be distributed in a cement product to be in an appropriate condition for radio communication, and has good adhesion and affinity with cement or the like. A wireless identification tag 1 mixed in a cement product in the manufacturing procedure thereof in which cement, an aggregate, water, or the like are mixed including a protection body 2 incorporating the wireless identification tag 1 having an antenna portion which can write/read information by radio communication, wherein a concave portion 3 is provided on the surface of the protection body.
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Citations
9 Claims
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1. A wireless identification tag mixed in a cement product in the manufacturing procedure thereof in which cement, an aggregate, and water, are mixed, said wireless identification tag comprising:
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a main body having an antenna portion which can write/read information by radio communication; and a protection body covering the main body, wherein a plurality of concave portions are provided on the surface of the protection body, wherein the protection body is formed of an alkali-resistant polyamide resin reinforced with non-magnetic-permeable glass fibers and inorganic fillers, wherein a size of the wireless identification tag is approximately the same as a size of the aggregate, wherein a depth of each of the concave portions is in a range of from approximately 0.2 mm to approximately 0.5 mm; and wherein a specific gravity of the wireless identification tag is in a range of from 1.3 to 1.9. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification