Title:
MnZn-BASED FERRITE WAVE ABSORBER
Document Type and Number:
Japanese Patent JP2004247603
Kind Code:
A
Abstract:
To provide an MnZn-based ferrite wave absorber that has excellent wave absorbing characteristics and, in addition, can also absorb electromagnetic waves in a high frequency range.
This wave absorber is composed of a spinel main phase containing 40.0-49.9 mol% Fe2O3, 4.0-26.5 mol% ZnO, and the balance MnO and a sub-phase containing CaO as the main component. The mass ratio of the spinel main phase is adjusted to 50-99 mass% of the total mass of the spinel main phase and sub-phase.
Inventors:
KOBAYASHI OSAMU
ITO KIYOSHI
NORIZUKI MASASHI
ITO KIYOSHI
NORIZUKI MASASHI
Application Number:
JP2003037123A
Publication Date:
September 02, 2004
Filing Date:
February 14, 2003
Export Citation:
Assignee:
MINEBEA CO LTD
International Classes:
C04B35/057; C04B35/26; H01F1/00; H01F1/34; C04B35/38; H01Q17/00; H05K9/00; (IPC1-7): H01F1/00; C04B35/38; H01F1/34; H05K9/00
Attorney, Agent or Firm:
Calyx
Toshio Nakamura
Miyazaki Yoshio
Toshio Nakamura
Miyazaki Yoshio