IP Library Granted Patent US 8,890,646
Granted Patent B2
US 8,890,646 · App. 13/861,507 · Granted Nov 18, 2014

Laminated-type electronic component

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Quick Facts
Patent No.
US 8,890,646
App. No.
13/861,507
Granted
Nov 18, 2014
Kind
B2
Abstract

A laminated-type electronic component including: plural magnetic material layers; plural conductive patterns; a laminated layer body formed by laminating the plural magnetic material layers and the plural conductive patterns; a coil formed in the laminated layer body by connecting the conductive patterns between the magnetic material layers; and at least one magnetic gap formed in the laminated layer body, wherein the magnetic gaps are formed of a compound of Ni and Cu.

Claims (12)

1. A laminated-type electronic component comprising:

plural magnetic material layers;

plural conductive patterns;

a laminated layer body formed by laminating the plural magnetic material layers and the plural conductive patterns;

a coil formed in the laminated layer body by connecting the conductive patterns between the magnetic material layers; and

at least one magnetic gap formed in the laminated layer body, wherein the magnetic material layers are formed of a ferrite including Ni, and

the at least one magnetic gap is formed of a compound consisting of Ni and Cu not including Zn and Fe.

2. The laminated-type electronic component according to claim 1 , wherein

the magnetic material layers are formed of Ni—Cu—Zn-based ferrite made by adding SnO2 of 0.6 to 1.5 wt % to a ferrite material containing NiO: 19 to 45 mol %, ZnO: 1 to 25 mol %, CuO: 6 to 10 mol %, and Fe203: 47 to 49 mol %.

3. The laminated-type electronic component according to claim 1 , wherein

a ratio of Ni to Cu, which forms the compound for forming the magnetic gaps, is 2:8 to 8:2.

4. The laminated-type electronic component according to claim 1 , wherein plural magnetic gaps are formed in the laminated layer body.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 2, 2017
From: TOKO, INC.
To: MURATA MANUFACTURING CO., LTD.
Reel/Frame 043164/0038 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2013
From: NOGUCHI, YUTAKA; YAMAMOTO, MAKOTO; MAEDA, SATORU
To: TOKO, INC.
Reel/Frame 030203/0372 →