INDUCTOR

WIPO Patent Application WO/2021/059830

A1

The present invention suppresses a loss due to current flow through an inductor even when the current increases in response to a decrease in inductance. A first coil and a second coil are provided on a first surface of a wiring board, and a third coil and a fourth coil are provided on a second surface thereof. The direction in which the first coil is wound as the first coil advances from an outer peripheral side to an inner peripheral side thereof, the direction in which the second coil is wound as the second coil advances from an outer peripheral side to an inner peripheral side thereof, the direction in which the third coil is wound as the third coil advances from an inner peripheral side to an outer peripheral side thereof, and the direction in which the fourth coil is wound as the fourth coil advances from an inner peripheral side to an outer peripheral side thereof are identical. A conductive film provided in a first through-hole electrically connects the inner peripheral side of the first coil and the inner peripheral side of the third coil. A conductive film provided in the second through-hole electrically connects the inner peripheral side of the second coil and the inner peripheral side of the fourth coil.

JP4829890	Composite electronic components
WO/2005/006359	MAGNETIC ELEMENT
JPH11121234	INDUCTOR AND MANUFACTURE THEREOF

MASUDA KAZUKI (JP)

PCT/JP2020/032095

April 01, 2021

August 26, 2020

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AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)

H01F17/00; H01F21/12; H01F27/28

WO2016132666A1	2016-08-25
WO2004021373A1	2004-03-11

JPH07272934A	1995-10-20
JP2016152288A	2016-08-22
JP2001250721A	2001-09-14
JPH05128324A	1993-05-25
JP2001291958A	2001-10-19
JP2018088471A	2018-06-07

YOSHITAKE Hidetoshi et al. (JP)

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