Title:
HEXAGONAL PLATE-SHAPED FERRITE POWDER, METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION AND MOLDED ARTICLE USING SAID FERRITE POWDER
Document Type and Number:
WIPO Patent Application WO/2016/117648
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a ferrite powder having greater residual magnetization and coercive force than do spherical hard ferrite particles, as well as a maximized value of magnetic permeability μ" in a specific frequency band; a method for producing the same; and a resin composition containing this ferrite powder and molded articles using this resin composition. Hexagonal plate-shaped ferrite powder containing 7.8-9 wt% of Sr, 61-65 wt% of Fe, and 0.1-0.65 wt% of Mg, and a method for producing this ferrite powder, a resin composition containing this ferrite powder, and molded articles and the like using this resin composition are employed to achieve this purpose.
Inventors:
AGA KOJI (JP)
IGARASHI TETSUYA (JP)
IGARASHI TETSUYA (JP)
Application Number:
PCT/JP2016/051715
Publication Date:
July 28, 2016
Filing Date:
January 21, 2016
Export Citation:
Assignee:
POWDERTECH CO LTD (JP)
International Classes:
C01G49/00; H01F1/11; H01F1/113; H05K9/00
Foreign References:
| JPS6140823A | 1986-02-27 | |||
| JP2002260913A | 2002-09-13 | |||
| JPH03285302A | 1991-12-16 |
Other References:
G. R. GORDANI ET AL.: "Enhanced magnetic properties of substituted Sr-hexaferrite nanoparticles synthesized by co-precipitation method", CERAMICS INTERNATIONAL, vol. 40, no. 3, April 2014 (2014-04-01), pages 4945 - 4952, XP055467345
See also references of EP 3248942A4
See also references of EP 3248942A4
Attorney, Agent or Firm:
YOSHIMURA, KATSUHIRO (JP)
Katsuhiro Yoshimura (JP)
Katsuhiro Yoshimura (JP)
Download PDF: