US4837094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen-containing ferromagnetic amorphous alloy and method of preparing the same
Assignee: Casio Computer Co Ltd
•
Filing: 1987-02-04
•
Granted: 1989-06-06
•
Expires: 2007-02-04
Abstract
Abstract An oxygen-containing ferromagnetic amorphous alloy having the formula M.sub.x G.sub.y O.sub.z wherein M is one or more transition elements of Fe, Co and Ni; or a combination of said transition element or elements and one or more elements selected from the group consisting of V, Cr, Mn, Nb, Mo, Hf, Ta, W, Pt, Sm, Gd, Tb, Dy and Ho; G is one or more elements selected from the group consisting of B, Si, Ge, As, Sb, Ti, Sn, Al and Zr; and x, y and z are the fractional atomic percentages of M, G and O and y+y+z=100 and this alloy in combination with a substrate.
Inventors
- 👤 Toshio Kudo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:39
CPC Classifications
C; C22; C22C; C22C45/00; C22C45/008; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/34; H01F1/38; H01F10/00; H01F10/08; H01F10/10; H01F10/12; H01F10/13; H01F41/00; H01F41/14; H01F41/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
155 words
An oxygen-containing ferromagnetic amorphous alloy , said alloy consisting of: M x G y O z wherein M is one or more transition elements of Fe, Co and Ni; or a combination of said transition element or elements and one or more elements selected from the group consisting of Mn, Nb, Mo, Hf, Ta,W, Pt, Sm, Gd, Tb, Dy and Ho; G is one or more elements selected from the group consisting of B, Si Ge, As, Sb, Ti, Sn and Zr; and x, y and z are the fractional atomic percentages of M, G and O and x+y+z=100, the composition of said amorphous alloy being in the pentagonal hatched zone in the attached FIG. 1, said pentagonal zone being defined by the respective lines joining the points of A (80, 19, 1), B (50, 49, 1), C (36, 36, 28), D (36, 4, 60) and E (38.5, 1.5, 60) shown in said FIG. 1.
Claim 2
Dependent Claim
155 words
An oxygen-containing ferromagnetic amorphous alloy , said alloy consisting of: M x G y O z wherein M is one or more transition elements of Fe, Co and Ni; or a combination of said transition element or elements and one or more elements selected from the group consisting of Mn, Nb, Mo, Hf, Ta,W, Pt, Sm, Gd, Tb, Dy and Ho; G is one or more elements selected from the group consisting of B, Si Ge, As, Sb, Ti, Sn and Zr; and x, y and z are the fractional atomic percentages of M, G and O and x+y+z=100, the composition of said amorphous alloy being in the pentagonal hatched zone in the attached FIG. 1, said pentagonal zone being defined by the respective lines joining the points of A (80, 19, 1), B (50, 49, 1), C (36, 36, 28), D (36, 4, 60) and E (38.5, 1.5, 60) shown in said FIG. 1.
Claim 3
Dependent Claim
18 words
An oxygen-containing ferromagnetic amorphous alloy as claimed in claim 1 wherein M is Fe and G is B.
Claim 4
Dependent Claim
189 words
An oxygen-containing ferromagnetic amorphous alloy and substrate combination, said amorphous alloy consisting of: M.sub.x G.sub.y O.sub.z wherein M is one or more transition elements of Fe, Co and Ni or a combination of said transition element or elements and one or more elements selected from the group consisting of Mn, Nb, Mo, Hf, Ta, W, Pt, Sm, Gd, Tb, Dy and Ho; G is one or more elements selected from the group consisting of B, Si, Ge, As, Sb, Ti, Sn and Zr; and x, y and z are the fractional atomic percentages of M, G and O and x+y+z=100, the composition of said amorphous alloy being in the pentagonal hatched zone in the attached FIG. 1, said pentagonal zone being defined by the lines joining the points of A (80, 19, 1), B (50, 49, 1), C (36, 36, 28), D (36, 4, 60) and E (38.5, 1.5, 60) shown in said FIG. 1, said amorphous alloy and substrate combination having been prepared by sputtering a composite target composed of an oxide and a metal or alloy, in the absence of externally supplied oxygen gas, onto said substrate
Claim 5
Dependent Claim
189 words
An oxygen-containing ferromagnetic amorphous alloy and substrate combination, said amorphous alloy consisting of: M.sub.x G.sub.y O.sub.z wherein M is one or more transition elements of Fe, Co and Ni or a combination of said transition element or elements and one or more elements selected from the group consisting of Mn, Nb, Mo, Hf, Ta, W, Pt, Sm, Gd, Tb, Dy and Ho; G is one or more elements selected from the group consisting of B, Si, Ge, As, Sb, Ti, Sn and Zr; and x, y and z are the fractional atomic percentages of M, G and O and x+y+z=100, the composition of said amorphous alloy being in the pentagonal hatched zone in the attached FIG. 1, said pentagonal zone being defined by the lines joining the points of A (80, 19, 1), B (50, 49, 1), C (36, 36, 28), D (36, 4, 60) and E (38.5, 1.5, 60) shown in said FIG. 1, said amorphous alloy and substrate combination having been prepared by sputtering a composite target composed of an oxide and a metal or alloy, in the absence of externally supplied oxygen gas, onto said substrate
Claim 6
Dependent Claim
27 words
A ferromagnetic oxygen containing amorphous alloy and substrate combination as claimed in claim 3, said amorphous alloy having the formula Fe x B y O z .
Claim 7
Dependent Claim
27 words
A ferromagnetic oxygen containing amorphous alloy and substrate combination as claimed in claim 3, said amorphous alloy having the formula Co x B y O z .
Claim 8
Dependent Claim
21 words
An oxygen-containing ferromagnetic amorphous alloy and substrate combination as claimed in claim 3 wherein M is Fe and G is B.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |