US4529960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chip resistor
Assignee: Koa Corp
•
Filing: 1984-05-29
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Granted: 1985-07-16
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Expires: 2004-05-29
Abstract
Abstract A chip resistor provided with a thin-film resistor has lateral electrodes formed at both sides of the substrate of the chip resistor. The lateral electrodes are formed by printing and firing conductive paste of a silver resin, not by thin-film technology. Electrode layers are formed on the lateral electrodes and on the thin-film electrode by plating. The chip resistor is thus constructed so as to be readily connectable to a motherboard by dip soldering or reflow soldering.
Inventors
- 👤 Katsutoshi Uchida
- 👤 Hisashi Izumida
- 👤 Kofu Kawana
- 👤 Masaru Suda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:21
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/28; H01C17/281; H01C17/006
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
67 words
A chip resistor comprising: a substantially rectangular insulating substrate, a thin-film resistor formed on one side of the substrate, thin-film electrodes at both ends of the thin-film resistor, lateral electrodes of a silver resin which are connected to the thin-film electrodes and are formed by printing and firing so as to cover the side portions of the substrate, and electrodes formed on the lateral electrodes by plating.
Claim 2
Dependent Claim
67 words
A chip resistor comprising: a substantially rectangular insulating substrate, a thin-film resistor formed on one side of the substrate, thin-film electrodes at both ends of the thin-film resistor, lateral electrodes of a silver resin which are connected to the thin-film electrodes and are formed by printing and firing so as to cover the side portions of the substrate, and electrodes formed on the lateral electrodes by plating.
Claim 3
Dependent Claim
22 words
A chip resistor as set forth in claim 1, wherein the thin-film resistor is entirely coated with an overcoat of a resin.
References Cited (Backward Citations)
US3296574A
Cited
US3441804A
Cited
US3904461A
Cited
US3849757A
Cited
US3887893A
Cited
US4020222A
Cited
US4227039A
Cited
US4204187A
Cited
US4358748A
Cited
US4310812A
Cited
US4396900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-15 | 1989-01-14 | 1989-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-15 | 1993-01-14 | 1993-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-15 | 1997-01-14 | 1997-07-16 | $7700.00 | Window Closed / Lapsed |