EP 0473782 A4 19921104 - MAGNETIC CORE
Title (en)
MAGNETIC CORE
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 (search report)
- DE 3705893 A1 19870827 - TOSHIBA KAWASAKI KK [JP]
- JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 19, no. 9, September 1980, pages 1781-1787, Tokyo , JP; M. MATSUURA et al.: "Effects of ambient gases on surface profile and related properties of amorphous alloy ribbons fabricated by melt-spinning"
- MATERIALS LETTERS, vol. 7, nos. 7-8, December 1988, pages 263-267, Amsterdam, 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. 9, no. 277 (E-355)[2000], 6th November 1985; & JP-A-60 121 706 (HITACHI KINZOKU K.K.) 29-06-1985
- PATENT ABSTRACTS OF JAPAN, vol. 10, no. 175 (E-413)[2231], 20th June 1986; & JP-A-61 24 208 (SHIN NIPPON SEITETSU K.K.) 01-02-1986
- MATERIALS LETTERS, vol. 7, nos. 7-8, December 1988, pages 263-267, Amsterdam, 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. 9, no. 277 (E-355)[2000], 6th November 1985; & JP-A-60 121 706 (HITACHI KINZOKU K.K.) 29-06-1985
- PATENT ABSTRACTS OF JAPAN, vol. 10, no. 175 (E-413)[2231], 20th June 1986; & JP-A-61 24 208 (SHIN NIPPON SEITETSU K.K.) 01-02-1986
- See references of WO 9115020A1
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