US4684916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chip resistor
Assignee: SUSUMU INDUSTRIAL Co Ltd
•
Filing: 1986-03-11
•
Granted: 1987-08-04
•
Expires: 2006-03-11
Abstract
Abstract In a chip resistor made of thin film having its connecting electrodes for connecting the resistor to a substrate, the connecting electrodes are coated with electrical conducting paint then soldering is performed so as to ensure soldering of the connecting electrodes to the substrate.
Inventors
- 👤 Juichiro Ozawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:39
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3431; H05K3/3442; H01; H01C; H01C1/00; H01C1/01; H01C1/014; H01C17/00; H01C17/006; H05K2201/00; H05K2201/09; H05K2201/09145; H05K2201/09154; H05K2201/10; H05K2201/10613; H05K2201/10621; H05K2201/10636; H05K2201/10742; H05K2201/10886; H05K2201/10909; Y; Y02; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
79 words
A chip resistor which comprises a chip resistor element formed on a substrate, printed circuit board circuit means for fixedly supporting the chip resistor element, connecting electrode means formed on the chip resistor element, electrical conductive paint layer means formed covering the connecting electrode means, outer electrode means formed covering a portion of the electrical conductive paint layer means and soldering means coated between the outer electrode means and metallic pattern means formed on the printed circuit board means.
Claim 2
Dependent Claim
79 words
A chip resistor which comprises a chip resistor element formed on a substrate, printed circuit board circuit means for fixedly supporting the chip resistor element, connecting electrode means formed on the chip resistor element, electrical conductive paint layer means formed covering the connecting electrode means, outer electrode means formed covering a portion of the electrical conductive paint layer means and soldering means coated between the outer electrode means and metallic pattern means formed on the printed circuit board means.
Claim 3
Dependent Claim
32 words
The chip resistor according to claim 1, wherein said connecting electrode means, electrical conductive paint layer means, outer electrode means and soldering means are on end portions of the chip resistor element.
Claim 4
Dependent Claim
16 words
The chip resistor according to claim 1, wherein said electrical conductive paint layer contains silver powder.
Claim 5
Dependent Claim
29 words
The chip resistor according to claim 1, wherein a surface of the chip resistor element opposite the substrate is covered by a protection layer made of plastic resin materials.
Claim 6
Dependent Claim
31 words
The chip resistor according to claim 4, wherein said electrical conductive paint layer covers the connecting electrode means and an end portion of the protection layer near the connecting electrode means.
Claim 7
Dependent Claim
15 words
The chip resistor according to claim 1 wherein said electrical paint layer contains copper powder.
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) | 1990-08-03 | 1991-02-02 | 1991-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-03 | 1995-02-02 | 1995-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-03 | 1999-02-02 | 1999-08-04 | $7700.00 | Window Closed / Lapsed |