Title:
ANTENNA COIL
Document Type and Number:
WIPO Patent Application WO/2008/062588
Kind Code:
A1
Abstract:
Provided is an antenna coil which can be easily manufactured and have a high impact
resistance. In the antenna coil, a coil is wound onto a bobbin in which a flat plate
core of a magnetic material is inserted, and they are contained in a case which
opens at its one end. The bobbin comprises at least two leg parts extending in the
axial direction of the coil along the core and a bridge part bridged between the
leg parts. The bridge part is formed in an arch shape and has flexibility against
impact. Preferably, the bridge part is formed in an arch shape by reducing the
distance between the leg parts by the winding pressure of the coil.
Inventors:
SAKO YOSHIHIRO (JP)
NAITO KENJI (JP)
OOI TAKAAKI (JP)
NAITO KENJI (JP)
OOI TAKAAKI (JP)
Application Number:
PCT/JP2007/065619
Publication Date:
May 29, 2008
Filing Date:
August 09, 2007
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
SAKO YOSHIHIRO (JP)
NAITO KENJI (JP)
OOI TAKAAKI (JP)
SAKO YOSHIHIRO (JP)
NAITO KENJI (JP)
OOI TAKAAKI (JP)
International Classes:
H01Q7/08
Foreign References:
| JP2005295473A | 2005-10-20 | |||
| JPS55148343U | 1980-10-25 | |||
| JP2004264288A | 2004-09-24 |
Attorney, Agent or Firm:
TSUKAHARA, Takakazu (22-3 Minami-choKawasaki-k, Kawasaki-shi Kanagawa 15, JP)
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