WIRELESS IDENTIFICATION TAG

• US 20120199658A1
• Filed: 02/24/2012
• Published: 08/09/2012
• Est. Priority Date: 05/21/2008
• Status: Active Grant

• Current Assignee: Sumitomo Corporation
• Original Assignee: Sumitomo Corporation
• Inventors: Kaga, Kikuo, Ashizawa, Shigeo
• Granted Patent: US 8,514,060 B2
• Time in Patent Office: Days
• US Class Current: 235/492
• CPC Class Codes: B28B 23/00 Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objectsB28B21/00 takes precedence; in units for prefabricated buildings B28B7/22
• CPC Class Codes: B28B 23/0031 with product identification means, e.g. labels on test products or integrated circuit tags inside products RFID
• CPC Class Codes: G06K 19/02 characterised by the selection of materials, e.g. to avoid wear during transport through the machine
• CPC Class Codes: G06K 19/04 characterised by the shape
• CPC Class Codes: G06K 19/041 Constructional details G06K19/06 takes precedence
• CPC Class Codes: G06K 19/07728 the record carrier comprising means for protection against impact or bending, e.g. protective shells or stress-absorbing layers around the integrated circuit
• CPC Class Codes: G06K 19/07758 arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag

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.

Claims

1. A wireless identification tag mixed in a cement product in the manufacturing procedure thereof in which cement, an aggregate, 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, and wherein a size of the wireless identification tag is approximately the same as a size of the aggregate.

2. The wireless identification tag according to claim 1,

wherein the plurality of concave portions provided on the surface of the protection body comprise a plurality of dimples that are formed by dimple processing.

3. The wireless identification tag according to either claim 1,

wherein a specific gravity of the wireless identification tag is in a range of from 1.3 to 1.9.

4. The wireless identification tag according to claim 1,

wherein the wireless identification tag is formed to have an approximately oval shape, with a length of approximately 17 mm and a width of approximately 12 mm.

5. The wireless identification tag according to claim 1,

wherein the protection body has a sphere, oval or polyhedron cubic shape.

6. The wireless identification tag according to claim 1,

wherein the main body of the wireless identification tag includes a semiconductor memory device, which has semiconducting material having a nonvolatile function, and a power source unit for generating electric current without incorporation of a battery by resonating with received radio waves.

7. The wireless identification tag according to claim 1,

wherein the main body of the wireless identification tag has a ship shape, and includes a semiconductor substrate for monitoring a semiconductor which is covered with an insulating material.

8. The wireless identification tag according to claim 1,

wherein the antenna portion is formed to have a curved surface shape.

9. The wireless identification tag according to claim 1,

wherein the antenna portion is formed to have a curved surface shape along a cubic shape of the protection body.

10. The wireless identification tag according to either claim 2,

wherein a specific gravity of the wireless identification tag is in a range of from 1.3 to 1.9.

11. The wireless identification tag according to claim 2,

wherein the wireless identification tag is formed to have an approximately oval shape, with a length of approximately 17 mm and a width of approximately 12 mm.

12. The wireless identification tag according to claim 3,

wherein the wireless identification tag is formed to have an approximately oval shape, with a length of approximately 17 mm and a width of approximately 12 mm.

13. The wireless identification tag adapted to be mixed in a cement product in the manufacturing process, in which cement, an aggregate, water, are mixed, which is provided with an antenna portion capable of writing and reading information via radio communication and enclosed inside a protection body,

wherein a plurality of concave portions are formed on the surface of the protection body, said protection body is consisted of an alkali-resistant polypropylene resin reinforced with an inorganic filler material, and the wireless identification tag is formed in an approximately same size as that of the aggregate.

14. The wireless identification tag according to claim 13,

wherein the protection body is formed with an alkali-resistant polypropylene resin reinforced with an inorganic filler material and glass fibers.

15. The wireless identification tag according to claim 13,

wherein the concave portions on the surface of the protection body are provided by forming a plurality of recesses on the surface of the protection body by dimple processing.

16. The wireless identification tag according to claim 13,

wherein the wireless identification tag is formed to have a specific gravity in a range of from 1.6 to 2.0.

17. The wireless identification tag according to claim 13,

wherein the wireless identification tag is formed in a schematically-cylindrical or barrel shape.

18. The wireless identification tag according to claim 17,

wherein the wireless identification tag is formed to have a length of 17 mm and a diameter of 12 mm.

19. The wireless identification tag according to claim 13,

wherein the wireless identification main body includes a semiconductor memory device comprising a semiconducting material and being provided with nonvolatile function and a power source section that resonates with received radio waves to generate electricity without requiring an installation of a battery therein.

20. The wireless identification tag according to claim 13,

wherein a ferrite core antenna is used for the antenna portion.