US5146047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric-wave absorbing material for construction
Assignee: Shimizu Construction Co Ltd
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Filing: 1991-03-07
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Granted: 1992-09-08
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Expires: 2011-03-07
Abstract
Abstract The electric-wave absorbing material for construction includes a medium and a large number of electric-wave absorbing particles dispersed therein. The particles are in the form of capsules filled with water. The electric-wave absorbing material for construction may be made of a construction material having provided thereon an electric-wave absorbing layer which includes such electric-wave absorbing particles.
Inventors
- 👤 Kouji Nagata
- 👤 Minoru Sugita
- 👤 Keisuke Kida
- 👤 Toru Watanabe
- 👤 Ken'yo Matsushita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:21
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0001; H05K9/0003; C; C04; C04B; C04B22/00; C04B22/002; C08; C08K; C08K9/00; C08K9/10; E; E04; E04B; E04B1/00; E04B1/62; E04B1/92
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
30 words
An electric-wave absorbing material for construction, comprising a medium and a plurality of electric wave absorbing particles dispersed in said medium, said electric-wave absorbing particles being capsules filled with water.
Claim 2
Dependent Claim
30 words
An electric-wave absorbing material for construction, comprising a medium and a plurality of electric wave absorbing particles dispersed in said medium, said electric-wave absorbing particles being capsules filled with water.
Claim 3
Dependent Claim
15 words
The material as claimed in claim 1, wherein said medium is a cement-type cured body.
Claim 4
Dependent Claim
26 words
The material as claimed in claim 1, wherein said electric wave absorbing particles are contained in said medium in a volume ratio of 15 to 45%.
Claim 5
Dependent Claim
21 words
The material as claimed in claim 1, further comprising a water-impermeable sheet provided on both sides of said electric absorbing material.
Claim 6
Dependent Claim
18 words
The material as claimed in claim 1, wherein said water is a highly conductive water containing inorganic ions.
Claim 7
Dependent Claim
20 words
The material as claimed in claim 1, wherein said capsules are microcapsules having a diameter no larger than 1 mm.
Claim 8
Dependent Claim
28 words
The material as claimed in claim 1, wherein said capsules are spherical capsules having a diameter of no smaller than 1 mm and no larger than 30 mm.
Claim 9
Dependent Claim
15 words
The material as claimed in claim 2, wherein said cement-type cured body contains carbon powder.
Claim 10
Dependent Claim
29 words
The material as claimed in claim 1, wherein walls of said capsules are made of a resin selected from the group consisting of nylon, polyurethane, urea resin and polystyrene.
Claim 11
Dependent Claim
49 words
An electric-wave absorbing material for construction including a construction material having provided thereon an electric wave absorbing layer, wherein said electric wave absorbing layer comprises a medium and a plurality of electric wave absorbing particles dispersed in said medium, said electric wave absorbing particles being capsules filled with water.
Claim 12
Dependent Claim
49 words
An electric-wave absorbing material for construction including a construction material having provided thereon an electric wave absorbing layer, wherein said electric wave absorbing layer comprises a medium and a plurality of electric wave absorbing particles dispersed in said medium, said electric wave absorbing particles being capsules filled with water.
Claim 13
Dependent Claim
22 words
The material as claimed in claim 10, wherein said electric-wave absorbing layer is attached to said construction material by an anchoring members.
Claim 14
Dependent Claim
37 words
The material as claimed in claim 10, wherein said electric-wave absorbing layer is attached to said construction material through supporting means so that the electric-wave absorbing layer is disposed at a predetermined distance from the construction material.
Claim 15
Dependent Claim
15 words
The material as claimed in claim 10, wherein said medium is made of a resin.
Claim 16
Dependent Claim
25 words
The material as claimed in claim 10, wherein said electric-wave absorbing particles are contained in said medium in a volume ratio of 15 to 45%.
Claim 17
Dependent Claim
18 words
The material as claimed in claim 10, wherein said water is a highly conductive water containing inorganic ions.
Claim 18
Dependent Claim
20 words
The material as claimed in claim 10, wherein said capsules are microcapsules having a diameter no larger than 1 mm.
Claim 19
Dependent Claim
27 words
The material as claimed in claim 10, wherein said capsules are spherical capsules having a diameter no less than 1 mm and no greater than 30 mm.
Claim 20
Dependent Claim
29 words
The material as claimed in claim 10, wherein walls of said capsules are made of a resin selected from the group consisting of nylon, polyurethane, urea resin, and polystyrene.
Claim 21
Dependent Claim
19 words
The material as claimed in claim 10, further comprising a plurality of tiles provided on said electric-wave absorbing layer.
Claim 22
Dependent Claim
18 words
The material as claimed in claim 1, wherein said water is a highly conductive water containing organic ions.
Claim 23
Dependent Claim
16 words
The material as claimed in claim 10, wherein said medium is made of a fiber-reinforced resin.
Claim 24
Dependent Claim
18 words
The material as claimed in claim 10, wherein said water is a highly conductive water containing organic ions.
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) | 1995-09-08 | 1996-03-09 | 1996-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-08 | 2000-03-09 | 2000-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-08 | 2004-03-09 | 2004-09-08 | $7700.00 | Window Closed / Lapsed |