Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Seirou Yahata0
Takanori Endo0
Takashi Tsuchida0
Date of Patent
February 24, 2009
0Patent Application Number
105004570
Date Filed
January 17, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A soft magnetic member which is formed by a composite of an organic object to satisfy a predetermined relationship with an antenna area, a circumference length, and a magnetic transmission ratio and a conductive member are provided between an antenna coil which is formed by at least one loop and a metal surface of the conductive member such as a metal casing. The magnetic flux which invades into the conductive object is blocked by the soft magnetic member and the conductive member so as to restrict the influence thereof.
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