Patent US5084619A successfully refreshed from Google Patents.
Patent US5900840A successfully refreshed from Google Patents.
US5900840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plane antenna having metal/resin bottom cover
Assignee: NGB Corp
•
Filing: 1996-06-11
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Granted: 1999-05-04
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Expires: 2016-06-11
Abstract
Abstract A plane antenna includes a resin casing including a bottom cover, and a top cover covering the upper surface of the bottom cover; and an antenna element 1a and circuit elements concerning thereto which are set in the resin casing. In the plane antenna, the bottom cover is formed by using a material which is prepared by mixing aluminum powder with molding resin.
Inventors
- 👤 Hideo Yajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:57
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/06; H01Q21/061; H01Q1/00; H01Q1/27; H01Q1/32; H01Q1/3208; H01Q1/3233
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
74 words
A plane antenna comprising: a resin casing including a bottom cover having an upper surface and comprising a molding resin and an aluminum mixture where aluminum comprises approximately 5% of said resin and aluminum mixture, said resin casing further including a top cover covering the upper surface of said bottom cover and comprising resin; and a circuit board including an antenna element and circuit elements, said circuit board being positioned in said resin casing.
Claim 2
Dependent Claim
74 words
A plane antenna comprising: a resin casing including a bottom cover having an upper surface and comprising a molding resin and an aluminum mixture where aluminum comprises approximately 5% of said resin and aluminum mixture, said resin casing further including a top cover covering the upper surface of said bottom cover and comprising resin; and a circuit board including an antenna element and circuit elements, said circuit board being positioned in said resin casing.
Claim 3
Dependent Claim
18 words
A plane antenna as in claim 1, wherein said bottom cover comprises an injected-molded resin and metal mixture.
Claim 4
Dependent Claim
16 words
A plane antenna as in claim 1, wherein said top cover substantially covers said bottom cover.
Claim 5
Dependent Claim
17 words
A plane antenna as in claim 1, wherein said bottom cover includes at least one permanent magnet.
Claim 6
Dependent Claim
44 words
A plane antenna as in claim 1, wherein said bottom cover includes a cylindrical seat and said plane antenna further comprises a packing positioned between said cylindrical seat and said top cover to seal a space between said top cover and said bottom cover.
Claim 7
Dependent Claim
31 words
A plane antenna as in claim 1, wherein said bottom cover comprises a resin and aluminum mixture and wherein aluminum comprises no more than 5% of said resin and aluminum mixture.
Claim 8
Dependent Claim
41 words
A plane antenna as in claim 1, wherein said top cover includes engaging pawls and said bottom cover includes locking pawls, wherein said engaging pawls engage said locking pawls and maintain a connection between said top cover and said bottom cover.
Claim 9
Dependent Claim
26 words
A plane antenna as in claim 1, wherein said bottom cover insulates said antenna from electromagnetic radiation and said top cover allows electromagnetic radiation to pass.
Claim 10
Dependent Claim
40 words
A cover for a plane antenna comprising: a first resin cover; and a second cover comprising a resin and aluminum mixture where aluminum comprises approximately 5% of said resin and aluminum mixture, said second cover connecting to said first cover.
Claim 11
Dependent Claim
40 words
A cover for a plane antenna comprising: a first resin cover; and a second cover comprising a resin and aluminum mixture where aluminum comprises approximately 5% of said resin and aluminum mixture, said second cover connecting to said first cover.
Claim 12
Dependent Claim
17 words
A cover as in claim 9, wherein said second cover comprises an injected-molded resin and metal mixture.
Claim 13
Dependent Claim
15 words
A cover as in claim 9, wherein said first cover completely covers said second cover.
Claim 14
Dependent Claim
16 words
A cover as in claim 9, wherein said second cover includes at least one permanent magnet.
Claim 15
Dependent Claim
42 words
A cover as in claim 9, wherein said second cover includes a cylindrical seat and said cover further comprises a packing positioned between said cylindrical seat and said first cover to seal a space between said first cover and said second cover.
Claim 16
Dependent Claim
30 words
A cover as in claim 9, wherein said second cover comprises a resin and aluminum mixture and wherein aluminum comprises no more than 5% of said resin and aluminum mixture.
Claim 17
Dependent Claim
41 words
A plane antenna as in claim 9, wherein said first cover includes engaging pawls and said second cover includes locking pawls, wherein said engaging pawls engage said locking pawls and maintain a connection between said first cover and said second cover.
Claim 18
Dependent Claim
26 words
A plane antenna as in claim 9, wherein said bottom cover insulates said antenna from electromagnetic radiation and said first cover allows electromagnetic radiation to pass.
Claim 19
Dependent Claim
49 words
A plane antenna comprising: a resin case including a bottom cover and a top cover, said bottom cover comprising resin mixed with approximately 5% aluminum powder; an antenna element being positioned within said resin case; and a circuit board having circuit elements and being positioned within said resin case.
Claim 20
Dependent Claim
49 words
A plane antenna comprising: a resin case including a bottom cover and a top cover, said bottom cover comprising resin mixed with approximately 5% aluminum powder; an antenna element being positioned within said resin case; and a circuit board having circuit elements and being positioned within said resin case.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-05-03 | 2002-11-02 | 2003-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-03 | 2006-11-02 | 2007-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-03 | 2010-11-02 | 2011-05-04 | $7700.00 | Window Closed / Lapsed |