US5135897A
Expired / Lapsed
US
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Electro-optical effect composition
Assignee: Mitsubishi Materials Corp
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Filing: 1991-02-20
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Granted: 1992-08-04
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Expires: 2011-02-20
Abstract
Abstract There is provided a new electro-optical effect composition having the general formula: (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 wherein 0.5</=x</=0.40.
Inventors
- 👤 Kenji Uchino
- 👤 Kazuyasu Hikita
- 👤 Mikiya Ono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:29
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/495; C04B35/497; C04B35/46; C04B35/462; C04B35/472; G; G02; G02F; G02F1/00; G02F1/0009; G02F1/0018; G02F1/0027; G02F1/01; G02F1/03; G02F1/055
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
15 words
An electro-optical effect composition consisting essentially of the general formula: (1-x)Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 --xPbTiO.sub.3 wherein 0.05≦x≦0.40.
Claim 2
Dependent Claim
15 words
An electro-optical effect composition consisting essentially of the general formula: (1-x)Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 --xPbTiO.sub.3 wherein 0.05≦x≦0.40.
Claim 3
Dependent Claim
23 words
The electro-optical effect composition in accordance with claim 1, wherein said composition has K IC value higher than 1.5×10 6 MN/m 3/2 .
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-04 | 1996-02-03 | 1996-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-04 | 2000-02-03 | 2000-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-04 | 2004-02-03 | 2004-08-04 | $7700.00 | Window Closed / Lapsed |