Inductor using drum core and method for producing the same

Details Inductor using drum core and method for producing the same Inductor using drum core and method for producing the same

2007-08-22

2009-02-24

Nguyen, Tuyen T. (Department: 2832)

Inductor devices

With electric and/or magnetic shielding means

Reexamination Certificate

active

07495538

ABSTRACT:
An inductor comprises a drum core which comprises a sintered magnetic material and has a winding axis and a pair of collars in a plate shape provided on both ends of the winding axis. The inductor further comprises a coil conductor wound on the winding axis of the drum core, the coil conductor is covered on an outer periphery thereof with a composite magnetic material in a sheet form containing a resin and magnetic powder, and the composite magnetic material in a sheet form is adhered to the outer periphery of the coil conductor except at least for inner surfaces of the pair of collars of the drum core facing each other.

REFERENCES:
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patent: 6198373 (2001-03-01), Ogawa et al.
patent: 6535095 (2003-03-01), Aoki et al.
patent: 6727792 (2004-04-01), Amada et al.
patent: 7358843 (2008-04-01), Takayama et al.
patent: 09-120926 (1997-05-01), None
patent: 10326711 (1998-12-01), None
patent: 2001-185421 (2001-07-01), None

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