Title:
MAGNETIC CORE FOR HIGH FREQUENCY AND INDUCTIVE COMPONENT USING SAME
Document Type and Number:
WIPO Patent Application WO/2005/020252
Kind Code:
A1
Abstract:
A magnetic core for high frequency is disclosed which is a formed body of a mixture wherein not more than 10%, in mass ratio, of a binder is blended in a soft magnetic metal glass powder which has a composition represented by the general formula: (Fe1-a-bNiaCob)100-x-y-z(M1-pM'p)xTyBz (provided that 0 ≤ a ≤ 0.30, 0 ≤ b ≤ 0.50, 0 ≤ a + b ≤ 0.50, 0 ≤ p ≤ 0.5, 1 atom% ≤ x ≤ 5 atom%, 1 atom% ≤ y ≤ 12 atom%, 12 atom% ≤ z ≤ 25 atom%, 22 ≤ (x + y + z) ≤ 32, M is at least one element selected from Zr, Nb, Ta, Hf, Mo, Ti, V, Cr and W, M' is at least one element selected from Zn, Sn and R (R are rare earth metals including Y), and T is at least one element selected from Al, Si, C and P). Also disclosed is an inductive component which is formed by winding a coil wire around such a magnetic core for high frequency at least one turn.
Inventors:
FUJIWARA TERUHIKO (JP)
URATA AKIRI (JP)
INOUE AKIHISA (JP)
URATA AKIRI (JP)
INOUE AKIHISA (JP)
Application Number:
PCT/JP2004/012317
Publication Date:
March 03, 2005
Filing Date:
August 20, 2004
Export Citation:
Assignee:
NEC TOKIN CORP (JP)
FUJIWARA TERUHIKO (JP)
URATA AKIRI (JP)
INOE AKIHISA (JP)
FUJIWARA TERUHIKO (JP)
URATA AKIRI (JP)
INOE AKIHISA (JP)
International Classes:
H01F1/153; H01F17/06; H01F3/14; H01F27/02; H01F27/29; (IPC1-7): H01F1/26; H01F27/24
Foreign References:
| JP2002151317A | 2002-05-24 | |||
| JP2002194514A | 2002-07-10 | |||
| JP2001064704A | 2001-03-13 | |||
| JP2002184616A | 2002-06-28 | |||
| JP2001068324A | 2001-03-16 | |||
| JPH05299232A | 1993-11-12 | |||
| JPH0734183A | 1995-02-03 | |||
| JP2002105502A | 2002-04-10 | |||
| JP2003142319A | 2003-05-16 |
Other References:
See also references of EP 1610348A4
Attorney, Agent or Firm:
Goto, Yosuke (4-10 Nishishinbashi 1-chome, Minato-k, Tokyo 03, JP)
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