Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takahide Kitahara0
Nobuyoshi Nagai0
Date of Patent
August 2, 2005
0Patent Application Number
104302870
Date Filed
May 7, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A reception antenna is formed of a column-profiled ferrite core and three antenna coils, each of which is formed by winding electric wire around the core. Each central axis of the three antenna coils is mutually disposed orthogonally at a barycenter of the core. Each of the three antenna coils is symmetrical with respect to the barycenter. A third antenna coil and each of a first antenna coil and a second antenna coil are overlapped with a space. The first antenna coil and the second antenna coil are overlapped with direct contact, where a starting end of the second antenna and a terminating end (outward end) of the first antenna is connected.
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