US4701830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic circuit module
Assignee: FDK Corp
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Filing: 1985-10-04
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Granted: 1987-10-20
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Expires: 2005-10-04
Abstract
Abstract An electronic circuit module having a magnetic base plate, a plurality of coils wound on the magnetic base plate, a circuit pattern formed on the surface of the magnetic base plate, a circuit component connected to the circuit pattern, and a plurality of lead pins mounted on the magnetic base plate for connecting external circuits. The magnetic base plate has projections along one side of it and the coils are wound on the projections.
Inventors
- 👤 Noboru Kato
- 👤 Hideji Matsuura
- 👤 Shinichiro Umemura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:31
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/18; H05K1/182; H01; H01F; H01F27/00; H01F27/24; H01F27/40; H02; H02M; H02M3/00; H02M3/003; H05K2201/00; H05K2201/10; H05K2201/10007; H05K2201/1003; H05K2201/10431; H05K2201/10439; H05K2201/10446; H05K2201/10613; H05K2201/10742; H05K2201/10886; H05K2201/10946
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
117 words
An electronic circuit module comprising an elongated magnetic base plate defining only along one long side thereof a plurality of side-by-side projections extending transversely with respect to the long axis of the plate with said projections being longitudinally spaced apart to define notches between longitudinally adjacent projections, a circuit pattern formed on a surface of said magnetic base plate defining a plurality of termination areas along the opposite long side of said magnetic base plate, a circuit component connected to said circuit pattern, a plurality of lead pins each connected to a respective termination area of said circuit pattern for connection to an external circuit, and a plurality of coils each wound on one of said projections.
Claim 2
Dependent Claim
117 words
An electronic circuit module comprising an elongated magnetic base plate defining only along one long side thereof a plurality of side-by-side projections extending transversely with respect to the long axis of the plate with said projections being longitudinally spaced apart to define notches between longitudinally adjacent projections, a circuit pattern formed on a surface of said magnetic base plate defining a plurality of termination areas along the opposite long side of said magnetic base plate, a circuit component connected to said circuit pattern, a plurality of lead pins each connected to a respective termination area of said circuit pattern for connection to an external circuit, and a plurality of coils each wound on one of said projections.
Claim 3
Dependent Claim
37 words
An electronic circuit module according to claim 1, wherein said magnetic base plate is rectangular with parallel longer sides and parallel shorter sides, and said projections are formed along one longer side of said parallel longer sides.
Claim 4
Dependent Claim
24 words
An electronic circuit module according to claim 1, wherein said magnetic base plate has three projections and said coils are wound on said projections.
Claim 5
Dependent Claim
21 words
An electronic circuit module according to claim 3, wherein said coils are coreless coils of a wire of an autohesion type.
Claim 6
Dependent Claim
28 words
An electronic circuit module according to claim 1, wherein said magnetic base plate serves as a base plate of the electronic circuit and as cores of said coils.
Claim 7
Dependent Claim
15 words
An electronic circuit module according to claim 1 wherein said projections extend for different heights.
Claim 8
Dependent Claim
17 words
An electronic circuit module according to claim 1 wherein said magnetic base plate is a sintered ferrite.
Claim 9
Dependent Claim
39 words
An electronic circuit module according to claim 1 wherein said circuit pattern is formed on both surfaces of said magnetic base plate and said lead pins are bifurcated to connect with termination areas on both sides of said plate.
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) | 1990-10-19 | 1991-04-20 | 1991-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-19 | 1995-04-20 | 1995-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-19 | 1999-04-20 | 1999-10-20 | $7700.00 | Window Closed / Lapsed |