US4629928A
Expired / Lapsed
US
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Electrode terminal structure for a piezoelectric polymer
Assignee: Kureha Corp
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Filing: 1985-04-18
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Granted: 1986-12-16
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Expires: 2005-04-18
Abstract
Abstract An electrode terminal structure for a polymer piezoelectric element is provided. The polymer piezoelectric element comprises a polymer piezoelectric film and a pair of electrode films formed on both sides of the piezoelectric film. A conductor plate and an insulating plate are successively disposed at a part near the periphery on one surface of the polymer piezoelectric film element. The thus stacked part is sandwiched between a double-layered conductor plate and the entire stacked structure is pressure bonded to form the above-mentioned electrode terminal structure.
Inventors
- 👤 Akira Hamada
- 👤 Hisao Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:20
CPC Classifications
H; H10; H10N; H10N30/00; H10N30/80; H10N30/87; H10N30/875; Y; Y10; Y10S; Y10S310/00; Y10S310/80
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
115 words
An electrode terminal structure for a piezoelectric element comprising: a piezoelectric film element comprising a polymer piezoelectric film having opposite first and second side surfaces and first and second electrode films respectively formed on said first and second side surfaces of the polymer piezoelectric film, a first conductor plate, an insulating plate and a second conductor plate disposed successively on said first electrode film and in the neighborhood of a periphery of the piezoelectric film element to form a stacked structure, and a continuous double-layered conductor plate sandwiching therebetween the stacked structure, the continuous double-layered conductor plate and the stacked structure sandwiched therebetween being pressure-bonded to each other to form an integral electrode terminal structure.
Claim 2
Dependent Claim
115 words
An electrode terminal structure for a piezoelectric element comprising: a piezoelectric film element comprising a polymer piezoelectric film having opposite first and second side surfaces and first and second electrode films respectively formed on said first and second side surfaces of the polymer piezoelectric film, a first conductor plate, an insulating plate and a second conductor plate disposed successively on said first electrode film and in the neighborhood of a periphery of the piezoelectric film element to form a stacked structure, and a continuous double-layered conductor plate sandwiching therebetween the stacked structure, the continuous double-layered conductor plate and the stacked structure sandwiched therebetween being pressure-bonded to each other to form an integral electrode terminal structure.
Claim 3
Dependent Claim
21 words
The electrode terminal structure according to claim 1, wherein said continuous double-layered conductor plate comprises a folded strip of conductor plate.
Claim 4
Dependent Claim
21 words
The electrode terminal structure according to claim 1, wherein said continuous double-layered conductor plate comprises a flattened tube of conductor plate.
Claim 5
Dependent Claim
28 words
The electrode terminal structure according to claim 1, wherein said continuous double-layered conductor plate is further pressed locally from at least one side thereof to the stacked structure.
Claim 6
Dependent Claim
35 words
The electrode terminal structure according to claim 1, wherein said first conductor plate disposed between the piezoelectric film and the insulating plate has a tongue for connecting a lead wire projecting from the stacked structure.
Claim 7
Dependent Claim
39 words
The electrode terminal structure according to claim 1, wherein said double-layered conductor plate and said insulating plate have an opening for introducing a lead wire to said first conductor plate between the insulating plate and the piezoelectric film element.
Claim 8
Dependent Claim
59 words
The electrode terminal structure according to claim 1, wherein one of said first and second conductor plates has a marginal portion folded about one end of the insulating plate so that said folded marginal portion is disposed so as to be in a same plane as, and electrically isolated from, the other of said first and second conductor plates.
Claim 9
Dependent Claim
34 words
The electrode terminal structure according to claim 1, wherein said piezoelectric film element is in the form of a strip having opposite ends, said stacked structure being formed at one of said opposite ends.
Claim 10
Dependent Claim
117 words
An electrode terminal structure for a piezoelectric element comprising: a piezoelectric film element comprising a polymer piezoelectric film having opposite first and second side surfaces and first and second electrode films respectively formed on said first and second side surfaces of the polymer piezoelectric film, a conductor plate and an insulating plate disposed successively on said first electrode film and in the neighborhood of a periphery of the piezoelectric film element to form a stacked structure, and a continuous double-layered conductor plate in the form of a flattened tube, sandwiching therebetween the stacked structure, the continuous double-layered conductor plate and the stacked structure sandwiched therebetween being pressure-bonded to each other to form an integral electrode terminal structure.
Claim 11
Dependent Claim
117 words
An electrode terminal structure for a piezoelectric element comprising: a piezoelectric film element comprising a polymer piezoelectric film having opposite first and second side surfaces and first and second electrode films respectively formed on said first and second side surfaces of the polymer piezoelectric film, a conductor plate and an insulating plate disposed successively on said first electrode film and in the neighborhood of a periphery of the piezoelectric film element to form a stacked structure, and a continuous double-layered conductor plate in the form of a flattened tube, sandwiching therebetween the stacked structure, the continuous double-layered conductor plate and the stacked structure sandwiched therebetween being pressure-bonded to each other to form an integral electrode terminal structure.
Claim 12
Dependent Claim
139 words
An electrode terminal structure for a piezoelectric element comprising: a piezoelectric film element comprising a polymer piezoelectric film having opposite first and second side surfaces and first and second electrode films respectively formed on said first and second side surfaces of the polymer piezoelectric film, a conductor plate and an insulating plate disposed successively on said first electrode film and in the neighborhood of a periphery of the piezoelectric film element to form a stacked structure, and a continuous double-layered conductor plate sandwiching therebetween the stacked structure, the continuous double-layered conductor plate and the stacked structure sandwiched therebetween being pressure-bonded to each other to form an integral electrode terminal structure, said double-layered conductor plate and said insulating plate having an opening for introducing a lead wire to said conductor plate between the insulating plate and the piezoelectric film element.
Claim 13
Dependent Claim
139 words
An electrode terminal structure for a piezoelectric element comprising: a piezoelectric film element comprising a polymer piezoelectric film having opposite first and second side surfaces and first and second electrode films respectively formed on said first and second side surfaces of the polymer piezoelectric film, a conductor plate and an insulating plate disposed successively on said first electrode film and in the neighborhood of a periphery of the piezoelectric film element to form a stacked structure, and a continuous double-layered conductor plate sandwiching therebetween the stacked structure, the continuous double-layered conductor plate and the stacked structure sandwiched therebetween being pressure-bonded to each other to form an integral electrode terminal structure, said double-layered conductor plate and said insulating plate having an opening for introducing a lead wire to said conductor plate between the insulating plate and the piezoelectric film element.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |