Is a
Patent attributes
Patent Applicant
0
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Eiji Ohta0
Norihiko Yamazaki0
Shinichi Matsumura0
Date of Patent
September 13, 2005
0Patent Application Number
101820850
Date Filed
November 22, 2001
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In an IC card, an IC module constructed by mounting an IC chip and an antenna circuit on a substrate is sandwiched between at least a pair of exterior films. The IC chip is sealed with resin on its outside and reinforced by a reinforcement material having a substantially circular shape with a diameter greater than a longest dimension value of the IC chip. The height variation amount of the shape of the reinforcement material on a surface thereof is within a range of 20 μm or less. The reliability of the IC chip is ensured while the outer appearance of the card and print characteristic are not degraded.
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