US5132864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit board
Assignee: Aisin Corp
•
Filing: 1991-03-26
•
Granted: 1992-07-21
•
Expires: 2011-03-26
Abstract
Abstract A printed circuit board includes a substrate, a printed electric circuit pattern formed on the surface of the substrate, a plurality of land patterns formed on end portions of the printed electric circuit pattern, an isolation layer formed on the surface of the substrate and printed electric circuit pattern, an opening formed in the isolation layer about each land pattern, a plurality of electrical devices arranged on the land patterns and a plurality of markers printed on the surface of the isolation layer enclosing corresponding electrical devices.
Inventors
- 👤 Shinji Takemura
- 👤 Yoshitami Saitou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:15
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0266; H05K1/0269; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3452; H05K2201/00; H05K2201/10; H05K2201/10613; H05K2201/10621; H05K2201/10636; H05K2203/00; H05K2203/05; H05K2203/0562; H05K2203/0588; H05K2203/16; H05K2203/161; H05K2203/168; Y; Y02; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
A printed circuit board comprising: a substrate; a printed electric circuit pattern formed on the surface of the substrate; a plurality of land patterns formed on end portions of the printed electric circuit pattern; an isolation layer formed on the surface of the substrate and the printed electric circuit pattern; an opening formed in said isolation layer around each of said land patterns; a plurality of electrical devices each connected between at least two land patterns; and a plurality of markers of non-conductive material each having a configuration corresponding to the configuration of each electrical device printed on the isolation layer and surrounding each of said electrical devices and the land patterns to which each electrical device is connected.
Claim 2
Dependent Claim
119 words
A printed circuit board comprising: a substrate; a printed electric circuit pattern formed on the surface of the substrate; a plurality of land patterns formed on end portions of the printed electric circuit pattern; an isolation layer formed on the surface of the substrate and the printed electric circuit pattern; an opening formed in said isolation layer around each of said land patterns; a plurality of electrical devices each connected between at least two land patterns; and a plurality of markers of non-conductive material each having a configuration corresponding to the configuration of each electrical device printed on the isolation layer and surrounding each of said electrical devices and the land patterns to which each electrical device is connected.
Claim 3
Dependent Claim
17 words
A printed circuit board according to claim 1, wherein one of the markers has a square configuration.
Claim 4
Dependent Claim
17 words
A printed circuit board according to claim 1, wherein one of the markers has a rectangular configuration.
Claim 5
Dependent Claim
22 words
A printed circuit board according to claim 1, wherein each electrical device is fixed to a land pattern by a soldered connection.
Claim 6
Dependent Claim
26 words
A printed circuit board according to claim 1, wherein at least one electrical device has three electric terminals for being connected to three corresponding land patterns.
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) | 1995-07-21 | 1996-01-20 | 1996-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-21 | 2000-01-20 | 2000-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-21 | 2004-01-20 | 2004-07-21 | $7700.00 | Window Closed / Lapsed |