Title:
ANTENNA UNIT
Document Type and Number:
WIPO Patent Application WO/2008/056601
Kind Code:
A1
Abstract:
An antenna unit (1) comprising an antenna coil (2) for performing at least one of
reception and transmission of an electromagnetic signal, a bobbin (3) around which
the antenna coil (2) is wound, a core (4) contained in the bobbin (3), and a coil
(5) for sensor electrode wound around the bobbin (3) in order to detect a predetermined
state change based on a variation in capacitance. The bobbin (3) has an antenna
coil winding portion (3a) for winding the antenna coil (2), and a sensor electrode
coil winding portion (3b) projected in one direction from the antenna coil winding
portion (3a) for winding the sensor electrode coil (5).
Inventors:
UEDA HOZUMI (JP)
HENMI KOJI (JP)
AIDA NORIHIKO (JP)
HENMI KOJI (JP)
AIDA NORIHIKO (JP)
Application Number:
PCT/JP2007/071372
Publication Date:
May 15, 2008
Filing Date:
November 02, 2007
Export Citation:
Assignee:
SUMIDA CORP (JP)
UEDA HOZUMI (JP)
HENMI KOJI (JP)
AIDA NORIHIKO (JP)
UEDA HOZUMI (JP)
HENMI KOJI (JP)
AIDA NORIHIKO (JP)
International Classes:
H01Q7/08; H01F5/02; H01F27/32; H01Q11/08; E05B49/00
Foreign References:
| JP2003092509A | 2003-03-28 | |||
| JP2004147098A | 2004-05-20 | |||
| JP2000286630A | 2000-10-13 | |||
| JP2003166369A | 2003-06-13 | |||
| JP2001297918A | 2001-10-26 | |||
| JPH01121877U | 1989-08-18 | |||
| JP2006096104A | 2006-04-13 | |||
| JP2003166369A | 2003-06-13 |
Other References:
See also references of EP 2093833A4
Attorney, Agent or Firm:
IAT WORLD PATENT LAW FIRM (Shinjuku Square Tower 22-1, Nishi-shinjuku 6-chome, Shinjuku-k, Tokyo 27, JP)
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