US3943481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvano-magnetic effect device
Assignee: Denki Onkyo Co Ltd
•
Filing: 1974-02-11
•
Granted: 1976-03-09
•
Expires: 1994-02-11
Abstract
Abstract A galvano-magneto effect device in which a glavano-magneto effect element is fixed on a thin substrate and a thick cover plate made of ferrite is provided on said galvano-magneto effect element.
Inventors
- 👤 Noboru Masuda
- 👤 Yu Nishino
- 👤 Hisashi Takiguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
H; H10; H10N; H10N52/00; H10N52/80
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
146 words
A galvano-magneto effect device comprising: a. a substrate; b. a galvano-magneto effect element mounted on said substrate comprising a thin semiconductor layer of a magnetism sensing material, said galvano-magneto effect element including a plurality of electrodes extending therefrom; c. a plurality of leads coupled to said electrodes; and, d. a cover plate means, having a high magnetic permeability, covering said semiconductor layer, wherein a portion of each of said plurality of leads is coupled to said galvano-magneto effect element on the surface of said element facing said cover plate means such that said leads are sandwiched between said cover plate means and said galvano-magneto effect element and wherein said cover plate means includes an integral embossed portion extending therefrom into the space between said leads towards said semiconductor layer, the thickness of said embossed portion being less than or equal to the thickness of said leads.
Claim 2
Dependent Claim
146 words
A galvano-magneto effect device comprising: a. a substrate; b. a galvano-magneto effect element mounted on said substrate comprising a thin semiconductor layer of a magnetism sensing material, said galvano-magneto effect element including a plurality of electrodes extending therefrom; c. a plurality of leads coupled to said electrodes; and, d. a cover plate means, having a high magnetic permeability, covering said semiconductor layer, wherein a portion of each of said plurality of leads is coupled to said galvano-magneto effect element on the surface of said element facing said cover plate means such that said leads are sandwiched between said cover plate means and said galvano-magneto effect element and wherein said cover plate means includes an integral embossed portion extending therefrom into the space between said leads towards said semiconductor layer, the thickness of said embossed portion being less than or equal to the thickness of said leads.
Claim 3
Dependent Claim
28 words
The galvano-magneto effect device of claim 1 wherein the cross-sectional shape of said embossed part substantially corresponds to the shape of said semiconductor layer surrounded by said electrodes.
Claim 4
Dependent Claim
28 words
The galvano-magneto effect device of claim 1 wherein said embossed portion is a portion of sphere the furthest extension thereof being at the approximate center of said semiconductor.
Claim 5
Dependent Claim
31 words
The galvano-magneto effect device of claim 1 wherein said embossed portion is a portion of an ellipsoid, the further extension thereof being at the approximate center of said semi conductor layer.
Claim 6
Dependent Claim
22 words
The galvano-magneto effect device of claim 1 wherein sides of said cover plate means opposite said leads slant away from said leads.
Claim 7
Dependent Claim
25 words
The galvano-magneto effect device of claim 1 wherein the surface of said coverplate means opposite said substrate is larger than the surface of said substrate.
Claim 8
Dependent Claim
24 words
The galvano-magneto effect device of claim 6 wherein the surface of said coverplate means includes an insulation layer on the surface opposite said substrate.
Claim 9
Dependent Claim
21 words
The galvano-magneto effect device of claim 6 wherein the surface of said cover plate means is surrounded by an insulation layer.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |