US5105333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensating ceramic dielectric
Assignee: Murata Manufacturing Co Ltd
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Filing: 1991-03-25
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Granted: 1992-04-14
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Expires: 2011-03-25
Abstract
Abstract A temperature compensating ceramic dielectric of the present invention contains compositions consisting of 2.0 to 14.0 mole % of barium oxide, 51.0 to 63.5 mole % of titanium oxide and 22.5 to 47.0 mole % of neodymium oxide as NdO 3/2 . Among the composition range, however, ranges between 2.0 to 9.0 mole % of barium oxide and 60.0 to 63.5 mole % of titanium oxide are to be excluded. By adding 0.1 to 5.0% by weight of niobium oxide as NbO 5/2 to the composition, the temperature compensating ceramic dielectric is obtained.
Inventors
- 👤 Tamio Yamano
- 👤 Nobumasa Kugutsu
- 👤 Tadashi Morimoto
- 👤 Yasuyuki Naito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:48
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/1209; H01G4/1218; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4686
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A temperature compensating ceramic dielectric consisting of 2.0 to 14.0 mole % of barium oxide, 51.0 to 63.5 mole % of titanium oxide and 22.5 to 47.0 mole % of neodymium oxide as NdO 3/2 (here, ranges between 2.0 to 9.0 mole % of barium oxide and 60.0 to 63.5 mole % of titanium oxide in the composition range are to be excluded), to which 0.1 to 5.0% by weight of niobium oxide is added as NbO 5/2 .
Claim 2
Dependent Claim
79 words
A temperature compensating ceramic dielectric consisting of 2.0 to 14.0 mole % of barium oxide, 51.0 to 63.5 mole % of titanium oxide and 22.5 to 47.0 mole % of neodymium oxide as NdO 3/2 (here, ranges between 2.0 to 9.0 mole % of barium oxide and 60.0 to 63.5 mole % of titanium oxide in the composition range are to be excluded), to which 0.1 to 5.0% by weight of niobium oxide is added as NbO 5/2 .
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) | 1995-04-14 | 1995-10-14 | 1996-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-14 | 1999-10-14 | 2000-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-14 | 2003-10-14 | 2004-04-14 | $7700.00 | Window Closed / Lapsed |