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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.:

US 10001891 B1

PDFFull Text
Expired
Date of Patent:
Jun. 19, 2018

Filed:

Sep. 09, 2016

Conductive film and touch panel including the same

Applicant:

Smk Corporation, Tokyo, JP;

Inventors:

Ryuji Ikeda, Kanagawa, JP;

Masayuki Nagumo, Kanagawa, JP;

Ryo Okamura, Kanagawa, JP;

Kensaku Mizumoto, Kanagawa, JP;

Assignee:

SMK Corporation, Tokyo, JP;

Attorney:
Primary Examiner:

Xuemei Zheng

Int. Cl.
CPC ...
G06F 3/044 (2006.01); G06F 3/041 (2006.01); H04B 5/00 (2006.01); B32B 3/10 (2006.01); B32B 15/20 (2006.01); G06F 3/046 (2006.01); G06K 19/077 (2006.01);
U.S. Cl.
CPC ...
G06F 3/044 (2013.01); B32B 3/10 (2013.01); B32B 15/20 (2013.01); G06F 3/046 (2013.01); H04B 5/0075 (2013.01); B32B 2307/202 (2013.01); B32B 2457/208 (2013.01); G06F 2203/04101 (2013.01); G06K 19/07758 (2013.01); G06K 19/07783 (2013.01);
Abstract

An object of the present disclosure is to improve visibility while suppressing an impedance of an antenna pattern formed on a conductive film. In a film base material on which an antenna pattern for near field communication is formed, the antenna pattern is formed of a metal having excellent conductivity. The antenna pattern is formed into a loop line shape with three to five turns and has a length of 200 to 500 mm, an interval between adjacent loop lines of 200 to 400 μm, and a line width of 4 to 20 μm. The thickness of the antenna pattern is set to a value calculated by the following Formula (1) so that the impedance at a maximum load becomes equal to or less than 50Ω.Thickness=Specific Resistance×Length/(Impedance×Width)   Formula (1)

Find Patent Forward Citations

Ikeda, Ryuji. (2018). Conductive film and touch panel including the same (U.S. Patent No. 10001891). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10001891

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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