US4924204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic PTC thermistor device
Assignee: Murata Manufacturing Co Ltd
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Filing: 1988-11-22
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Granted: 1990-05-08
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Expires: 2008-11-22
Abstract
Abstract An organic PTC thermistor device includes an organic PTC thermistor element having first and second surfaces opposite to each other; first and second electrode layers deposited on the first and second surfaces, respectively, and having defined therein respective non-electrode regions which are displaced in position with respect to each other; and first and second terminal members elastically engaged respectively to a portion of the first electrode layer, which is aligned with the non-electrode region in the second electrode layer and to a portion of the second electrode layer which is aligned with the non-electrode region in the first electrode layer.
Inventors
- 👤 Katsuyuki Uchida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:39
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/14; H01C1/1406; H01C1/02; H01C1/022
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
An organic-PCT thermistor device which comprises: an organic-PCT thermistor element having first and second surfaces opposite to each other; first and second electrode layers deposited on the first and second surfaces, respectively; said first and second electrode layers having respective non-electrode regions defined therein; said non-electrode regions in the first and second electrode layers being displaced in position with respect to each other; and first and second terminal members elastically engaged respectively to a portion of the first electrode layer that is aligned with the non-electrode region in the second electrode layer, and to a portion of the second electrode layer that is aligned with the non-electrode region in the first electrode layer.
Claim 2
Dependent Claim
113 words
An organic-PCT thermistor device which comprises: an organic-PCT thermistor element having first and second surfaces opposite to each other; first and second electrode layers deposited on the first and second surfaces, respectively; said first and second electrode layers having respective non-electrode regions defined therein; said non-electrode regions in the first and second electrode layers being displaced in position with respect to each other; and first and second terminal members elastically engaged respectively to a portion of the first electrode layer that is aligned with the non-electrode region in the second electrode layer, and to a portion of the second electrode layer that is aligned with the non-electrode region in the first electrode layer.
Claim 3
Dependent Claim
66 words
The device as claimed in claim 1, wherein the thermistor element is rectangular in shape and wherein the non-electrode region in the first electrode layer is defined at a location corresponding to one of the opposite ends of the thermistor element and the non-electrode region in the second layer is defined at a location corresponding to the other of the opposite ends of the thermistor element.
Claim 4
Dependent Claim
62 words
The device as claimed in claim 1, wherein the thermistor element is circular in shape and wherein the non-electrode region in the first electrode layer is defined at a location corresponding to a peripheral portion of the thermistor element and the non-electrode region in the second electrode layer is defined at a location corresponding to a central portion of the thermistor element.
References Cited (Backward Citations)
US4414052A
Cited
US4418272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-07 | 1993-11-06 | 1994-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-07 | 1997-11-06 | 1998-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-07 | 2001-11-06 | 2002-05-08 | $7700.00 | Window Closed / Lapsed |