Metal accessory having non-contact short-range wireless communication function, and manufacturing method therefor

A metal accessory having a non-contact short-range wireless communication function comprising:

• an integrated circuit element (IC chip) for control, capable of performing non-contact short-range wireless communication with an external terminal;
• a loop antenna with a predetermined length, having both ends respectively connected to both ends of the integrated circuit element for control;
• and
• a body part, which is made of a metal or precious metal material, and on which the integrated circuit element for control and the loop antenna connected to both ends of the integrated circuit element are mounted,
• wherein a hole is formed in an inner area of the body part where the loop antenna is mounted, and the body part has a slit formed to be connected with the hole, and
• wherein a portion of the loop-shaped body part is completely cut by the slit.

A manufacturing method of a metal accessory having a non-contact short-range wireless communication function comprising the steps of:

• (a) manufacturing a body part having a main body and a cover using a metal or precious metal material, wherein the body part is generally formed in a loop shape having a through hole formed in the middle;
• (b) forming a first groove with a predetermined depth along the inner circumferential surface or the outer circumferential surface of the main body of the body part so that a loop antenna is inserted into the first groove;
• (c) forming a second groove in a predetermined area of the first groove formed in the inner circumferential surface or the outer circumferential surface so that an integrated circuit element for control is mounted in the second groove;
• and
• (d) adhering and connecting both ends of the loop antenna to both ends of the integrated circuit element for control after mounting the integrated circuit element for control in the second groove and mounting the loop antenna wound several times in the first groove.

The manufacturing method according to claim 11, wherein further comprising the steps of:

• (a1) manufacturing the main body of the loop shape having the through hole formed in the middle using the metal material or the precious metal material;
• (a2) manufacturing a cover for covering the first groove and the second groove, which will be formed in the outer circumferential surface or the inner circumferential surface of the main body;
• and
• (a3) forming a first slit by completely cutting a partial section of the main body.

A manufacturing method of a metal accessory having a non-contact short-range wireless communication function comprising the steps of:

• (a) manufacturing a first body part of a loop shape having a through hole formed in the middle using a metal material or a precious metal material;
• (b) manufacturing a second body part of a loop shape, which is the same as the first body part, and has a through hole formed in the middle, using a metal material or a precious metal material;
• (c) forming a first groove with a predetermined depth in any one of sides where the first body part and the second body part get in contact with each other so that a loop antenna is inserted into the first groove;
• (d) forming a second groove in a predetermined area of the first groove, which is formed in any one of sides where the first body part and the second body part get in contact with each other, so that an integrated circuit element for control is mounted in the second groove;
• (e) respectively mounting the integrated circuit element for control and the loop antenna, which is connected to both ends of the integrated circuit element, in the second groove and the first groove;
• and
• (f) adhering one side of the first body part and one side of the second body part to each other so that the side on which the loop antenna is mounted is not exposed to the outside,
• wherein one side of the first body part and one side of the second body part have the same size and shape and are arranged to get in contact with each other so as to be in an integrated form.