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:
Jun. 02, 2015
Filed:
Feb. 17, 2009
Taiga Matsushita, Itabashi-ku, JP;
Katsumi Katakura, Itabashi-ku, JP;
Takakazu Murakami, Itabashi-ku, JP;
Masateru Yamakage, Itabashi-ku, JP;
Taiga Matsushita, Itabashi-ku, JP;
Katsumi Katakura, Itabashi-ku, JP;
Takakazu Murakami, Itabashi-ku, JP;
Masateru Yamakage, Itabashi-ku, JP;
LINTEC CORPORATION, Tokyo, JP;
Abstract
An antenna circuit which includes a substrate and a planar circuit with a circuit line of a conductive material formed on a surface of the substrate, and at least one conductive pad (notch-forming part) electrically connected with the circuit line of the planar circuit. Cutting lines, such as perforations, are provided in the substrate around an outer periphery of the notch-forming part and extend into the notch-forming part on either side of connection points where the circuit line connects with the notch-forming part, The cutting lines approach each other in the notch-forming part to form a section (notch port). The antenna circuit can be destroyed even if an IC tag provided with the antenna circuit is peeled off from various directions, and the destruction rate of the circuit can be increased stably.