US5051204A
Expired / Lapsed
US
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Multi-element metal chalocogenide
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1989-11-28
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Granted: 1991-09-24
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Expires: 2009-11-28
Abstract
Abstract A novel, multi-element metal chalcogenide is disclosed which has the following general formula (I): X.sub.(1-a)x X'.sub.ax Y.sub.y Z.sub.z (I) wherein X stands for at least one element selected from Bi, Sb and As, X 1 stands for at least one element selected from Pb, Sn and Ge, Y stands for at least one element selected from Ti, V, Nb and Ta, Z stands for at least one element selected from S, Se and Te, a is a number of 0-1, x is a number of 0.8-1.2, y is a number of 0.8-1.2 or 1.6-2.4 and z is a number of 2.4-3.6 when y is 0.8-1.2 or a numeral of 4.0-6.0 when y is 1.6-2.4.
Inventors
- 👤 Yoshinao Ohsawa
- 👤 Yoshito Gotoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:20
CPC Classifications
C; C01; C01G; C01G1/00; C01G1/12; C01B; C01B17/00; C01B17/20; C01B19/00; C01B19/007; C01P; C01P2002/00; C01P2002/70; C01P2002/78
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
A chalcogenide having the following general formula (I): X.sub.(1-a)x X'.sub.ax Y.sub.y Z.sub.z (I) wherein x stands for at least one element selected from Bi, Sb and As, X'stands for at least one element selected from Pb, Sn and Ge, Y stands for at least one element selected from Ti, V, Nb and Ta, Z stands for at least one element selected from S, Se and Te, a is a number of 0.01-0.99, x is a number of 0.8-1.2, y is a number of 0.8-1.2 and z is a number of 2.4-3.6.
Claim 2
Dependent Claim
91 words
A chalcogenide having the following general formula (I): X.sub.(1-a)x X'.sub.ax Y.sub.y Z.sub.z (I) wherein x stands for at least one element selected from Bi, Sb and As, X'stands for at least one element selected from Pb, Sn and Ge, Y stands for at least one element selected from Ti, V, Nb and Ta, Z stands for at least one element selected from S, Se and Te, a is a number of 0.01-0.99, x is a number of 0.8-1.2, y is a number of 0.8-1.2 and z is a number of 2.4-3.6.
Claim 3
Dependent Claim
92 words
A chalcogenide having the following general formula (I): X.sub.(1-a)x X'.sub.ax Y.sub.y Z.sub.z (I) wherein x stands for at least one element selected from Bi, Sb and As, X' stands for at least one element selected from Pb, Sn and Ge, Y stands for at least one element selected from Ti, V, Nb and Ta, Z stands for at least one element selected from S, Se and Te, a is a number of 0.1, x is a number of 0.8-1.2, y is a number of 1.6-2.4 and z is a number of 4.0-6.0.
Claim 4
Dependent Claim
92 words
A chalcogenide having the following general formula (I): X.sub.(1-a)x X'.sub.ax Y.sub.y Z.sub.z (I) wherein x stands for at least one element selected from Bi, Sb and As, X' stands for at least one element selected from Pb, Sn and Ge, Y stands for at least one element selected from Ti, V, Nb and Ta, Z stands for at least one element selected from S, Se and Te, a is a number of 0.1, x is a number of 0.8-1.2, y is a number of 1.6-2.4 and z is a number of 4.0-6.0.
Claim 5
Dependent Claim
11 words
A chalcogenide in accordance with claim 1 wherein a is 0.1-0.9.
References Cited (Backward Citations)
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US3851045A
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US4299892A
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US4323480A
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FR2381395A1
Cited
US4126732A
Cited
US4136233A
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