Nec Tokin Corporation

Ryutaro Isoda

Teruhiko Fujiwara

Toru Ito

Masayoshi Ishii

Haruki Hoshi

Masahiro Kondo

Hatsuo Matsumoto

Tadakuni Sato

Toshiya Sato

An inductor component contains a drum magnetic core made of a magnetic material having a structure including integrated flanges at both ends of a columnar material, a coil wound around the columnar material in the drum magnetic core and placed between the flanges, and a permanent magnet placed in the neighborhood of the drum magnetic core with the coil wound around. This inductor component contains a sleeve core fitted to the outside of the drum magnetic core. The permanent magnet is placed in at least one gap in a closed magnetic circuit formed with the drum magnetic core and the sleeve core in order to apply a direct-current magnetic field in the direction opposite to the direction of a magnetic field generated by a magnetomotive force due to the coil.

Inductor component containing permanent magnet for magnetic bias and method of manufacturing the same

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Sendai, Japan

Ryutaro Isoda