Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/004401
Kind Code:
A1
Abstract:
There is provided an antenna device (60) for a non-contact type IC card for writing and reading data by inductive coupling by an electronic device having a communication function. The antenna device (60) includes: a loop coil (61) sound by a conductive lines in a planar shape for performing inductive coupling with the electronic device; and a magnetic body (62) for covering one region (61a) arranged at one side of the loop coil from one surface and covering the other region (61b) arranged at the other side of the loop coil from the other surface. The loop coil is covered by the magnetic body from the one and the other surface so that its entire region is covered.

Inventors:
ARAMAKI KEISUKE (JP)
SUGITA SATORU (JP)
AKIHO HIRAKU (JP)
Application Number:
PCT/JP2006/312067
Publication Date:
January 11, 2007
Filing Date:
June 15, 2006
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SONY CHEM & INF DEVICE CORP (JP)
SONY CORP (JP)
ARAMAKI KEISUKE (JP)
SUGITA SATORU (JP)
AKIHO HIRAKU (JP)
International Classes:
H01Q7/00; G06K19/07; G06K19/077; H01Q1/36
Foreign References:
JP2004166176A2004-06-10
JP2002334314A2002-11-22
JP2004235884A2004-08-19
JP2004118440A2004-04-15
JP2004348497A2004-12-09
JP2004048135A2004-02-12
JP2005192561A2005-07-21
JP2001331772A2001-11-30
US20050007296A12005-01-13
Other References:
See also references of EP 1898493A4
Attorney, Agent or Firm:
KOIKE, Akira et al. (Yamato Seimei Bldg. 1-7, Uchisaiwai-cho 1-chom, Chiyoda-ku Tokyo, JP)
Download PDF: