Title:
INDUCTOR
Document Type and Number:
WIPO Patent Application WO/2008/047713
Kind Code:
A1
Abstract:
Provided is an inductor which effectively uses a mounting space and has remarkably
reduced radiation noise. The inductor is provided with a magnetic core (1) having
a high magnetic permeability, and a coil element (2) integrally embedded in the
magnetic core. The magnetic core (1) has a spherical structure, and the coil element
(2) has a spherical coil structure wherein a coil conductive wire is spherically
laminated. The extracting end of the coil element configures connecting terminals
(2a, 2b) by extending to the external of the magnetic core. Since the coil element
having the spherical coil structure is integrally embedded inside the magnetic
core having the spherical structure, a leaking magnetic flux is remarkably reduced
and the magnetic flux is prevented from being disturbed.
Inventors:
SATAKE YUKI (JP)
SATO TSUTOMU (JP)
SATO TSUTOMU (JP)
Application Number:
PCT/JP2007/069969
Publication Date:
April 24, 2008
Filing Date:
October 12, 2007
Export Citation:
Assignee:
SIGMA DENSHI CO LTD (JP)
SATAKE YUKI (JP)
SATO TSUTOMU (JP)
SATAKE YUKI (JP)
SATO TSUTOMU (JP)
International Classes:
H01F17/06; H01F27/28; H01F27/29
Foreign References:
| JP2006004958A | 2006-01-05 | |||
| JP2006024844A | 2006-01-26 | |||
| JP2005354001A | 2005-12-22 | |||
| JPH031472U | 1991-01-09 | |||
| JP2005244042A | 2005-09-08 | |||
| JP2005109399A | 2005-04-21 |
Attorney, Agent or Firm:
HOSAKA, Michiko (5-13-1 Toranomon, Minato-ku, Tokyo 01, JP)
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