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:
Sep. 30, 2014
Filed:
Dec. 11, 2009
Applicants:
Masaki Nakamura, Tottori, JP;
Hirokazu Araki, Saitama, JP;
Masahiro Mita, Gunma, JP;
Inventors:
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 7/08 (2006.01); H01Q 1/27 (2006.01); G04R 60/10 (2013.01); G04G 21/04 (2013.01); H01Q 7/06 (2006.01); H01Q 1/24 (2006.01);
U.S. Cl.
CPC ...
H01Q 7/06 (2013.01); H01Q 1/273 (2013.01); H01Q 7/08 (2013.01); G04R 60/10 (2013.01); G04G 21/04 (2013.01); H01Q 1/242 (2013.01); H01Q 1/243 (2013.01);
Abstract
A resonance-type, receiving antenna comprising a circular-ring-shaped, magnetic core constituting a closed magnetic path having one gap, one or more coils wound around the circular-ring-shaped, magnetic core, and a capacitor connected in parallel to both ends of each coil; an angle between a straight line extending from a geographical center of the circular-ring-shaped, magnetic core to a center of the gap and a straight line extending from the geographical center to a center of the coil being in a range of 10° to 90°.