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Patent US4695756A successfully refreshed from Google Patents.
US4695756A
Expired / Lapsed
US
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Laminated terminal layer for electronic component
Assignee: Murata Manufacturing Co Ltd
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Filing: 1986-08-13
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Granted: 1987-09-22
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Expires: 2006-08-13
Abstract
Abstract A laminated terminal layer is at least a double layer comprising a first layer made of a hard material and a second layer made of a soft material. The first layer is flexible. The second layer is overlapped on the first layer and in contact with an electrode of a piezoelectric ceramic resonator. Preferably, the hard material is phosphor bronze and the soft material is Al, Ag, or Pb as a simple substance or, any alloy thereof.
Inventors
- 👤 Yasuhiro Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:22
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/10; H03H9/1007; H03H9/1014; H03H9/1028; H10; H10N; H10N30/00; H10N30/80; H10N30/87; H10N30/875; H10N30/877
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
A piezoelectric resonator, comprising: a housing having an opening for accommodating piezoelectric components, said components comprising: a piezoelectric means having a flat piezoelectric member with electrodes formed on both sides thereof; two terminal plates each interposed between an inner wall of said housing and one side of said piezoelectric means and being provided with a projection to contact a vibration node on each of said electrodes; each of said terminal plates comprising a first layer of phosphor bronze and a second layer, for reducing vibration received by said piezoelectric means, having a thickness equal to 5% or more of the thickness of said first layer, of a member selected from the group consisting of Al, Ag, Pb or any alloy thereof laminated on said first layer in a manner such that said second layer contacts each of said electrodes; and lead means extending from each of said two terminal plates through said opening.
Claim 2
Dependent Claim
153 words
A piezoelectric resonator, comprising: a housing having an opening for accommodating piezoelectric components, said components comprising: a piezoelectric means having a flat piezoelectric member with electrodes formed on both sides thereof; two terminal plates each interposed between an inner wall of said housing and one side of said piezoelectric means and being provided with a projection to contact a vibration node on each of said electrodes; each of said terminal plates comprising a first layer of phosphor bronze and a second layer, for reducing vibration received by said piezoelectric means, having a thickness equal to 5% or more of the thickness of said first layer, of a member selected from the group consisting of Al, Ag, Pb or any alloy thereof laminated on said first layer in a manner such that said second layer contacts each of said electrodes; and lead means extending from each of said two terminal plates through said opening.
Claim 3
Dependent Claim
17 words
The piezoelectric resonator of claim 1, further comprising means for sealing said piezoelectric components in said housing.
Claim 4
Dependent Claim
12 words
The piezoelectric resonator of claim 1, which is a ceramic piezoelectric resonator.
Claim 5
Dependent Claim
18 words
The piezoelectric resonator of claim 1, wherein said first layer and said second layer are a clad layer.
Claim 6
Dependent Claim
16 words
The piezoelectric resonator of claim 1, wherein said first layer and said second layer are bonded.
Claim 7
Dependent Claim
18 words
The piezoelectric resonator of claim 1, wherein said laminated terminal layer is provided with a plurality of layers.
Claim 8
Dependent Claim
20 words
The piezoelectric resonator of claim 1, further comprising an anti-vibration material for preventing said laminated terminal layer from being vibrated.
Claim 9
Dependent Claim
18 words
The piezoelectric resonator of claim 1, wherein said second layer overlaps said first layer at a selected portion.
Claim 10
Dependent Claim
20 words
The piezoelectric resonator of claim 8, wherein, at said selected portion, said second layer is in contact with said electrode.
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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) | 1990-09-21 | 1991-03-23 | 1991-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-21 | 1995-03-23 | 1995-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-21 | 1999-03-23 | 1999-09-22 | $7700.00 | Window Closed / Lapsed |