The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2023
Filed:
Feb. 05, 2020
Kona M Co., Ltd., Chungcheongbuk-do, KR;
KONA M CO., LTD., Chungcheongbuk-do, KR;
Abstract
A method for manufacturing a metal card includes: a step for forming a metal card by laminating a stack of sheets in which are stacked a plurality of sheets, centered on a metal sheet, including adhesive sheets having the same size as the metal sheet, an upper inlay sheet having a first antenna, and a lower inlay sheet having a second antenna; a step for forming a COB accommodation space, which can accommodate a COB, by milling a certain area of the metal card using computerized numerical control (CNC) machining; a step for forming a through-hole, which exposes the first antenna and the second antenna, by milling a COB contact point region of the COB accommodation space down to the lower inlay sheet; a step for electrically connecting the first antenna and the second antenna by dispensing a conductive elastic liquid into the through-hole; and a step for bidirectionally connecting the first antenna and the second antenna to the COB by attaching the COB within the COB accommodation space so that the COB contact point is connected by the conductive elastic liquid.