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Patent Searching and Data


Title:
PORTABLE RADIO EQUIPMENT
Document Type and Number:
Japanese Patent JP2002217634
Kind Code:
A
Abstract:

To solve a problem that an IC card exhibits unidirectivity as antenna because an antenna coil 3 is wound unidirectionally and since the antenna coils 3 must be provided in the X and Y directions in addition to the Z direction in order to impart directivity also in the X and Y directions, the antennas are arranged three-dimensionally to cause deterioration of installation performance and cost increase.

In the IC card comprising a plurality of antenna coils having different directivity, and electronic components being connected electrically with respective antenna coils, bobbins of respective antenna coils are molded integrally.


Inventors:
NAGANO TETSUJI
Application Number:
JP2001006966A
Publication Date:
August 02, 2002
Filing Date:
January 15, 2001
Export Citation:
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Assignee:
CALSONIC KANSEI CORP
International Classes:
G06K19/077; H01F5/02; H01Q7/00; H04B5/02; G06K19/07; (IPC1-7): H01Q7/00; G06K19/07; G06K19/077; H01F5/02
Attorney, Agent or Firm:
Hiroaki Tazawa (1 person outside)