Title:
COMPOSITE MAGNETIC MATERIAL AND INDUCTOR ELEMENT
Document Type and Number:
Japanese Patent JP3449322
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a magnetic material which has comparatively large permeability and can maintain comparatively high gain Q-factor, in a frequency band from several MHz to several GHz.
SOLUTION: A composite magnetic material contains a ferrite powder and resin. Spinel-type ferrite having composition represented by (NiO)x(CoO)y(MeO)z(Fe2O3)1-x-y-z, where Me is at least one kind selected out of Mg, Cu and Zn, and x, y and z satisfy the conditions 0.10≤x≤0.550, 0.025≤y≤0.200, 0≤z≤0.200 and 0.400≤(x+y+z)≤0.600 is used as a ferrite constituting the ferrite powder.
Inventors:
Kunisaburo Banno
Takashi Toda
Takashi Ohsawa
Mitsuhiro Fukushima
Hiroshi Marusawa
Takashi Toda
Takashi Ohsawa
Mitsuhiro Fukushima
Hiroshi Marusawa
Application Number:
JP30501299A
Publication Date:
September 22, 2003
Filing Date:
October 27, 1999
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
C01G49/00; H01F1/34; H01F1/37; H01F17/04; (IPC1-7): H01F1/34; H01F1/37; H01F17/04
Domestic Patent References:
| JP7192909A | ||||
| JP737711A |
Attorney, Agent or Firm:
Masaaki Koshiba (1 outside)