US5554232A
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Amorphous metal wire
Assignee: Unitika Ltd
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Filing: 1994-11-02
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Granted: 1996-09-10
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Expires: 2014-11-02
Abstract
Abstract An amorphous metal wire having the following composition by atomic %: (Fe.sub.a Co.sub.b).sub.100-(y+z) Si.sub.y B.sub.z where 0.4≦a≦0.6, a+b=1, 6≦y≦8, and 13≦z≦16. The wire shows a Large Barkhausen effect and is excellent in pulse voltage generating properties and toughness. The amorphous metal wire according to the present invention is widely applicable to pulse voltage generating elements and various magnetic markers.
Inventors
- 👤 Katsuyuki Fujimoto
- 👤 Kohati Nomura
- 👤 Shuji Ueno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:31
CPC Classifications
C; C22; C22C; C22C45/00; C22C45/02; C22C45/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
30 words
An amorphous metal wire consisting essentially of Fe, Co, Si and B, and having the following composition by atomic %: (Fe.sub.a Co.sub.b).sub.100-(y+z) Si.sub.y B.sub.z where: 0.4≦a≦0.6; a+b=1; 6≦y≦8; and 13≦z≦16.
Claim 2
Dependent Claim
30 words
An amorphous metal wire consisting essentially of Fe, Co, Si and B, and having the following composition by atomic %: (Fe.sub.a Co.sub.b).sub.100-(y+z) Si.sub.y B.sub.z where: 0.4≦a≦0.6; a+b=1; 6≦y≦8; and 13≦z≦16.
Claim 3
Dependent Claim
15 words
The amorphous metal wire of claim 1, wherein the wire shows a Large Barkhausen effect.
Claim 4
Dependent Claim
13 words
The amorphous metal wire of claim 1, wherein the wire has excellent toughness.
Claim 5
Dependent Claim
15 words
The amorphous metal wire of claim 1, wherein the wire generates a high pulse voltage.
Claim 6
Dependent Claim
9 words
The amorphous metal wire of claim 1, wherein 6.5≦y≦8.
Claim 7
Dependent Claim
9 words
The amorphous metal wire of claim 1, wherein 13≦z≦15.
Claim 8
Dependent Claim
9 words
The amorphous metal wire of claim 1, wherein 0.45≦a≦0.55.
Claim 9
Dependent Claim
17 words
The amorphous metal wire of claim 1, wherein the wire has a roundness of at least 60%.
Claim 10
Dependent Claim
17 words
The amorphous metal wire of claim 8, wherein the wire has a roundness of at least 80%.
Claim 11
Dependent Claim
17 words
The amorphous metal wire of claim 9, wherein the wire has a roundness of at least 90%.
Claim 12
Dependent Claim
20 words
The amorphous metal wire of claim 1, wherein the wire has an unevenness in wire diameter of 6% or below.
References Cited (Backward Citations)
US4743313A
Cited
US4806179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-09-10 | 2000-03-11 | 2000-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-10 | 2004-03-11 | 2004-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-10 | 2008-03-11 | 2008-09-10 | $7700.00 | Window Closed / Lapsed |