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Patent US4647495A successfully refreshed from Google Patents.
US4647495A
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Electromagnetic reflection body
Assignee: Bridgestone Corp
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Filing: 1985-08-12
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Granted: 1987-03-03
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Expires: 2005-08-12
Abstract
Abstract An electromagnetic reflection body is disclosed, which comprises a woven fabric made from a blended yarn of metallic filament and organic or inorganic fiber, and a fiber reinforced synthetic resin united therewith in one piece. This reflection body is used for an electromagnetic wave reflector, an electromagnetic interference shielding plate and the like.
Inventors
- 👤 Tatsuya Kanayama
- 👤 Yutaka Yamanaka
- 👤 Hitoshi Toyoda
- 👤 Akihiko Tanaka
- 👤 Toshikazu Shinogaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:18
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B5/00; B32B5/02; B32B5/024; B32B5/08; H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/141; H01Q15/142; H05; H05K; H05K9/00; H05K9/0073; H05K9/0081; H05K9/009; B32B2260/00; B32B2260/02; B32B2260/021; B32B2260/04; B32B2260/046; B32B2307/00; B32B2307/20; B32B2307/212; Y; Y10; Y10S; Y10S57/00; Y10S57/901; Y10T; Y10T442/00; Y10T442/20; Y10T442/2008; Y10T442/30; Y10T442/3065; Y10T442/313; Y10T442/3138; Y10T442/3382; Y10T442/339
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
38 words
An electromagnetic reflection body comprising a woven fabric made from a blended yarn of metallic filament and organic or inorganic fiber as an electromagnetic reinforcing member, and a fiber reinforced synthetic resin united therewith in one rigid piece.
Claim 2
Dependent Claim
38 words
An electromagnetic reflection body comprising a woven fabric made from a blended yarn of metallic filament and organic or inorganic fiber as an electromagnetic reinforcing member, and a fiber reinforced synthetic resin united therewith in one rigid piece.
Claim 3
Dependent Claim
35 words
The electromagnetic reflection body according to claim 1, wherein said blended yarn is produced by twisting 1 to 5 metallic filaments of not more than 500 μm in diameter with said organic or inorganic fiber.
Claim 4
Dependent Claim
26 words
The electromagnetic reflection body according to claim 1, wherein said metallic filament is selected from brass wire, copper wire, stainless steel wire and soft steel wire.
Claim 5
Dependent Claim
24 words
The electromagnetic reflection body according to claim 1, wherein said organic fiber is selected from nylon fiber, polyester fiber, acrylic fiber and rayon fiber.
Claim 6
Dependent Claim
23 words
The electromagnetic reflection body according to claim 1, wherein said inorganic fiber is selected from glass fiber, carbon fiber and silicon carbide fiber.
Claim 7
Dependent Claim
30 words
The electromagnetic reflection body according to claim 1, wherein said woven fabric has a thread count of 10-50 yarns per width of 25 mm in each of weft and warp.
Claim 8
Dependent Claim
19 words
The electromagnetic reflection body according to claim 1, wherein said fiber reinforced synthetic resin comprises a sheet molding compound.
Claim 9
Dependent Claim
22 words
The electromagnetic reflection body according to claim 1, wherein said body further comprises a surface protecting layer at its reflection surface side.
Claim 10
Dependent Claim
29 words
The electromagnetic reflection body according to claim 8, wherein said surface protecting layer is a surface mat or cloth mat of glass fiber possibly impregnated with a synthetic resin.
Claim 11
Dependent Claim
22 words
The electromagnetic reflection body according to claim 8, wherein said surface protecting layer is a coating of a non-solvent type synthetic resin.
Claim 12
Dependent Claim
19 words
The electromagnetic reflection body according to claim 8, wherein said surface protecting layer is a glass fiber cloth mat.
Claim 13
Dependent Claim
18 words
The electromagnetic reflection body according to claim 11, wherein said cloth mat is impregnated with a synthetic resin.
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) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |