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Patent Searching and Data


Title:
MAGNETIC CORE
Document Type and Number:
WIPO Patent Application WO/1991/015020
Kind Code:
A1
Abstract:
A magnetic core obtained by winding a long sheet of thin alloy or by laminating short sheets thereof. The surface roughness of the thin alloy sheet or sheets is limited to lie within a predetermined range in order to improve the squareness ratio of the magnetic core. The magnetic core exhibits excellent squareness ratio characteristic and magnetic saturation characteristic in high-frequency regions.

Inventors:
Watanabe
Yumie, Takahashi
Yumiko, Sawa
Takao, Yamauchi
Yoshiyuki, Matsushita
Susumu, Okamura
Masami
Application Number:
PCT/JP1990/000407
Publication Date:
October 03, 1991
Filing Date:
March 27, 1990
Export Citation:
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Assignee:
KABUSHIKI KAISHA TOSHIBA WATANABE
Yumie, Takahashi
Yumiko, Sawa
Takao, Yamauchi
Yoshiyuki, Matsushita
Susumu, Okamura
Masami
International Classes:
H01F1/153; H01F1/16; H01F3/04; H01F27/24; (IPC1-7): H01F1/153; H01F27/24
Foreign References:
JPS6484602A
JPS62179704A
Other References:
Denki Gakkai Kenkyukai Shiryo, Jiki Oyo Kenkyukai AM79-58, 21 December 1979 (21. 12. 79) (Tokyo), DENKI GAKKAI, YAGI MASAAKI et al (Shushu no Gas Fuinkichu de sakuseishita Amorphous ribbon no tokusei) p. 1-7.
See also references of EP 0473782A1
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