Patent ID: 8514060
Filing Date: 2013-08-20
Classification: B28B,G06K

Abstract:
1. A wireless identification tag mixed in a cement product in a 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 a surface of the protection body, wherein the protection body is formed of an alkali-resistant polyamide resin reinforced by inorganic fillers, such that the alkali-resistant polyamide resin is not reinforced by glass fibers, 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.