IP Library › Granted Patent US 7,397,336
Granted Patent B2
US 7,397,336 · App. 11/556,848 · Granted Jul 8, 2008

Coil component

Assignee: Sumida Electric Co., Ltd.
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Quick Facts
Patent No.
US 7,397,336
App. No.
11/556,848
Granted
Jul 8, 2008
Kind
B2
Abstract

Disclosed is a coil component having a magnetic core that is made of a magnetic material, and a terminal electrode portion and a coil portion that are made of a conductive material, wherein the coil components is configured such that the magnetic material and the conductive material contact with each other, and there is a relation of R M ≧20Z O when an insulation resistance of the magnetic core is R M (Ω) and a peak impedance of the coil component is Z O (Ω).

Claims (9)

1. A coil component comprising:

a magnetic core that is made of a magnetic material; and

a terminal electrode portion and a coil portion that are made of a conductive material, wherein

the coil component is configured such that said magnetic material and said conductive material contact with each other, and

there is a relation of

R M ≧20 Z O

when an insulation resistance of said magnetic core is R M (Ω) and

a peak impedance of said coil component is Z 0 (Ω).

2. A coil component according to claim 1 , wherein said coil portion is composed of a flat board-shaped member.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 17, 2007
From: KAWARAI, MITSUGU
To: SUMIDA CORPORATION
Reel/Frame 018766/0389 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2006
From: KAWARAI, MITSUGU
To: SUMIDA ELECTRIC CO., LTD.
Reel/Frame 018488/0935 →
Priority Claims (1)
JP P2005-327766 · Nov 11, 2005 · national
Continuity (1)
Related Publication 20070109087A1 · May 17, 2007