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:
Apr. 20, 2010
Filed:
Jun. 30, 2004
Applicant:
Koichi Yamaguchi, Fukui-ken, JP;
Inventor:
Koichi Yamaguchi, Fukui-ken, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 7/08 (2006.01); G06K 19/06 (2006.01); H04M 1/00 (2006.01); H04B 1/38 (2006.01); H01Q 1/00 (2006.01); H01Q 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A non-contact reader/writer for an IC card includes an antenna substrate provided with a loop antenna and a capacitor on its upper surface, a control substrate provided with a transmitting/receiving circuit and a chip coil on its upper surface, and a magnetic sheet disposed between the antenna substrate and the control substrate. A magnetic flux generated by the chip coil on the control substrate passes through the loop antenna to cause magnetic coupling, so that the loop antenna and the transmitting/receiving circuit need not be connected to each other through a communication cable.