EP 0473782 B1 19970827 - MAGNETIC CORE
Title (en)
MAGNETIC CORE
Title (de)
MAGNETKERN
Title (fr)
NOYAU MAGNETIQUE
Publication
Application
Priority
JP 9000407 W 19900327
Abstract (en)
[origin: WO9115020A1] 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.
IPC 1-7
IPC 8 full level
H01F 1/153 (2006.01); H01F 1/16 (2006.01); H01F 3/04 (2006.01); H01F 27/24 (2006.01)
CPC (source: EP KR)
H01F 1/15308 (2013.01 - EP); H01F 1/15316 (2013.01 - EP); H01F 1/15341 (2013.01 - EP); H01F 1/16 (2013.01 - EP); H01F 3/04 (2013.01 - EP); H01F 27/24 (2013.01 - KR)
Citation (examination)
- JP H06484602 A
- EP-A- 0 342 921
- EP-A- 0 342 922
- EP-A- 0 342 923
- DE-A- 3 705 893
- DE-A- 3 835 986
- JP-A- 6 484 602
- JP-A-62 179 704
- PATENT ABSTRACTS OF JAPAN, vol. 13, no. 589 (C-670)(3937), December 25, 1989; & JP-A-1 247 556 (HITACHI METALS LTD.) 03-10-1989
- NL; D.X. PANG et al.: "Influence of quenching rate on the curie temperature, resistivity, internal friction and structure of Fe-based amorphous alloys"
- PATENT ABSTRACTS OF JAPAN, vol. 13, no. 139 (E-738)(3487), April 6, 1989; & JP- A-63 302 504 (HITACHI METALS LTD.) 09-12-1988
- PATENT ABSTRACTS OF JAPAN, vol. 13, no. 171 (C-588)(3519), April 24, 1989; & JP-A-64 249 (TOSHIBA CORP.) 05-01-1989
- JOURNAL OF APPLIED PHYSICS, vol. 55, no. 6, Part IIA, March 1984, pages 1787- 1789; New York, US; H.H. LIEBERMANN et al.: "Dependence of some properties on thickness of smooth amorphous alloy ribbon"
- Japanese Journal of applied physics, vol.19, no.9, september 1980 pages 1781-1787, Tokio JP; M.Matsuura et al: " Effects of ambient gases on surface profile and related properties of amorphous alloy ribbons fabricated by melt-spinning "
- Denki Gakkai Kenyukai Shiryo, Jiki Oyo Kenkyukai AM 79-58, 21 December 1979
- Patent Abstract of Japan, vol.13, no. 589, December 25, 1989;
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 9115020 A1 19911003; DE 69031338 D1 19971002; DE 69031338 T2 19980402; EP 0473782 A1 19920311; EP 0473782 A4 19921104; EP 0473782 B1 19970827; KR 0134508 B1 19980427; KR 920702001 A 19920812
DOCDB simple family (application)
JP 9000407 W 19900327; DE 69031338 T 19900327; EP 90904934 A 19900327; KR 910701674 A 19911125