Title: Antenna, and radio-controlled timepiece, keyless entry system and RFID system using same
Application Number: 200610100748 Application Date: 2006.07.04
Publication Number: 1893181 Publication Date: 2007.01.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01Q7/06;H01Q7/08;G04C9/02;G04C11/02;G04G7/02
Applicant(s) Name: Hitachi Metals Ltd. Address:
Inventor(s) Name: Araki Hirokazu;Mitsumata Chiharu;Mita Masahiro
Attorney & Agent: li guiliang
Abstract:
    An antenna of the invention comprises a magnetic main-path member comprising a coil wound around a magnetic core, and a magnetic sub-path member magnetically connected to the magnetic core for constituting a substantially closed magnetic path with the magnetic main-path member, the antenna meeting the relation of (S/N)
Time: 4
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