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Patent Searching and Data


Title:
TEARDROP-SHAPED MAGNETIC CORE AND COIL DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/010416
Kind Code:
A1
Abstract:
The present invention provides a teardrop-shaped magnetic core having excellent manufacturing efficiency, a large initial inductance, and stable DC superimposition characteristics; and a coil device using the same. This teardrop-shaped magnetic core is made from a magnetic material and is used in a coil device (20), the teardrop-shaped magnetic core being provided with: a first linear part (11) and a second linear part (15) shaped as straight lines and connected at one end by a bent (16) part curved at a right angle; and an arcuate part (17) shaped as an arc that links the other ends of the first linear part and the second linear part. The coil device pertaining to the present invention is obtained by providing a coil to the teardrop-shaped magnetic core (10).

Inventors:
IMANISHI TSUNETSUGU (JP)
YOSHIMORI HITOSHI (JP)
Application Number:
PCT/JP2013/067481
Publication Date:
January 16, 2014
Filing Date:
June 26, 2013
Export Citation:
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Assignee:
SHT CORP LTD (JP)
International Classes:
H01F37/00; H01F27/24
Domestic Patent References:
WO2008087885A12008-07-24
WO2003005384A12003-01-16
Foreign References:
JP2003124015A2003-04-25
JP2011181869A2011-09-15
JP4603728B22010-12-22
JP4745543B22011-08-10
Other References:
See also references of EP 2874161A4
Attorney, Agent or Firm:
MARUYAMA Toshiyuki et al. (JP)
Toshiyuki Maruyama (JP)
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