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:
Feb. 23, 2016
Filed:
May. 15, 2014
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventors:
Nobuo Ikemoto, Nagaokakyo, JP;
Toshiyuki Nakaiso, Nagaokakyo, JP;
Naoki Gouchi, Nagaokakyo, JP;
Naoto Ikeda, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 19/073 (2006.01); H01Q 7/00 (2006.01); G06K 19/077 (2006.01);
U.S. Cl.
CPC ...
G06K 19/073 (2013.01); G06K 19/07779 (2013.01); G06K 19/07794 (2013.01); H01Q 7/005 (2013.01);
Abstract
An antenna device includes an antenna resonance circuit connected to a power supply circuit and a variable-frequency resonance element including a resonance circuit which is coupled with the antenna resonance circuit via an electromagnetic field. The resonant frequency of the resonance circuit is variable within a predetermined frequency band.