Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 13, 2010
Patent Application Number
11785510
Date Filed
April 18, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
The size of an antenna coil is reduced, and it is possible to prevent a lowering of the reception sensitivity due to a difference of the arrangement position of the antenna coil. On a winding frame of a ferrite core, a first coil and a second coil are wound in such a manner that their winding axes orthogonally intersect each other. A third coil is wound around an outer circumference of the first coil and the second coil in such a manner that the third coil's winding axis orthogonally intersects the winding axes of the first coil and the second coil.
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