Metal cap with RFID tag and container comprising same

Patent metadata

Field	Value
Publication number	US-10586143-B2
Application number	US-201916297949-A
Country	US
Kind code	B2
Filing date	Mar 11, 2019
Priority date	Sep 26, 2016
Publication date	Mar 10, 2020
Grant date	Mar 10, 2020

Abstract

A metal cap is provided with an RFID tag that includes a metal cap including a cylindrical main body part, a top plate part formed at one end of the cylindrical main body part, and an opening part formed at the other end of the cylindrical main body part, and an RFID tag disposed on the metal cap. The RFID tag includes an RFIC element disposed in the metal cap, and a loop antenna connected to the RFIC element. At least a portion of a loop opening of the loop antenna extends in a circumferential direction R of the metal cap while being exposed from an opening edge of the opening part of the metal cap to the outside of the metal cap.

First claim

The invention claimed is:

1. A metal cap with an RFID tag comprising:
a metal cap including a cylindrical main body, a top plate disposed at a first end of the cylindrical main body, and an opening at a second end of the cylindrical main body that is opposite the first end; and
an RFID tag disposed on the metal cap and including:
an RFIC element disposed in the metal cap, and
a loop antenna connected to the RFIC element, with the loop antenna having a loop opening with at least a portion thereof extending in a circumferential direction of the metal cap and being exposed from an opening edge of the opening of the metal cap.

2. The metal cap with an RFID tag according to claim 1 , wherein the top plate of the metal cap covers an opening of a container when the metal cap is secured to the container.

3. The metal cap according to claim 2 , wherein the container is a wine bottle, and the metal cap is a cap seal.

4. The metal cap according to claim 2 , wherein the loop antenna extends in a direction away from the RFIC element when the metal cap is secured to the container, such that the loop opening extends around at least a portion of the circumferential direction of the container to expose the loop opening configuring the loop opening to communicate data signals with an external communication device.

5. The metal cap with an RFID tag according to claim 1 , wherein the loop antenna includes a first conductor extending in the circumferential direction and that is entirely located outside the metal cap.

6. The metal cap with an RFID tag according to claim 5 , wherein the loop antenna includes a second conductor extending in the circumferential direction to face the first conductor across the loop opening.

7. The metal cap with an RFID tag according to claim 6 , wherein the second conductor of the loop antenna at least partially overlaps the cylindrical main body of the metal cap.

8. The metal cap with an RFID tag according to claim 7 , wherein the second conductor has a larger width than a width of the first conductor.

9. The metal cap with an RFID tag according to claim 1 , wherein the loop antenna comprises a first loop antenna that includes a first loop opening and a second loop antenna including a second loop opening that faces the first loop opening.

10. The metal cap with an RFID tag according to claim 9 , wherein the first loop antenna and the second loop antenna are connected in series, such that a current flows in a same direction as viewed in a facing direction of the first and second loop openings.

11. The metal cap with an RFID tag according to claim 1 , wherein the RFIC element and the loop antenna are connected via a magnetic shield type inductor chip that includes an inductor covered with a magnetic material.

12. A container including an opening, comprising:
a metal cap that includes a cylindrical main body, a top plate disposed at a first end of the cylindrical main body, and an opening at a second end of the cylindrical main body that is opposite the first end, with the metal cap configured to cover the opening of the container when secured to the container; and
an RFID tag disposed on the metal cap and including:
an RFIC element disposed in the metal cap, and
a loop antenna connected to the RFIC element, with the loop antenna having a loop opening with at least a portion thereof that extends in a circumferential direction of the metal cap and is exposed from an opening edge of the opening of the metal cap to an outside of the metal cap when the metal cap is secured to the container.

13. The container according to claim 12 , wherein the container is a wine bottle, and the metal cap is a cap seal.

14. The metal cap according to claim 12 , wherein the loop antenna extends in a direction away from the RFIC element, such that the loop opening extends around at least a portion of the circumferential direction of the container to expose the loop opening configuring the loop opening to communicate data signals with an external communication device.

15. The metal cap with an RFID tag according to claim 12 , wherein the loop antenna includes a first conductor extending in the circumferential direction and that is entirely located outside the metal cap, and further includes a second conductor extending in the circumferential direction to face the first conductor across the loop opening.

16. The metal cap with an RFID tag according to claim 15 , wherein the second conductor of the loop antenna at least partially overlaps the cylindrical main body of the metal cap.

17. The metal cap with an RFID tag according to claim 16 , wherein the second conductor has a larger width than a width of the first conductor.

18. The metal cap with an RFID tag according to claim 12 , wherein the loop antenna comprises a first loop antenna that includes a first loop opening and a second loop antenna including a second loop opening that faces the first loop opening.

19. The metal cap with an RFID tag according to claim 18 , wherein the first loop antenna and the second loop antenna are connected in series, such that a current flows in a same direction as viewed in a facing direction of the first and second loop openings.

20. The metal cap with an RFID tag according to claim 12 , wherein the RFIC element and the loop antenna are connected via a magnetic shield type inductor chip that includes an inductor covered with a magnetic material.

Assignees

• Murata Manufacturing Co

Inventors

• Kato Noboru

Classifications

• H01Q7/00

  Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop · CPC title

• B65D2203/10

  Transponders · CPC title

• G06K19/07726

  the record comprising means for indicating first use, e.g. a frangible layer · CPC title

• G06K19/07798

  part of the antenna or the integrated circuit being adapted for rupturing or breaking, e.g. record carriers functioning as sealing devices for detecting not-authenticated opening of containers (electronic seals G09F3/03) · CPC title

• G06K19/0723

  the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs · CPC title