US4908276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflecting plate
Assignee: Kyocera Mita Industrial Co Ltd
•
Filing: 1985-01-16
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Granted: 1990-03-13
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Expires: 2005-01-16
Abstract
Abstract A reflecting plate comprising a substrate, a synthetic resin interlayer formed on the surface of the substrate, and a thin metallic film formed on the synthetic resin interlayer. The reflecting plate may further comprise a transparent synthetic resin layer on the surface of the thin metallic film. A typical use of the reflecting plate is with an illuminating lamp in an electrostatic copying apparatus.
Inventors
- 👤 Kanjiro Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:43
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/22; G; G02; G02B; G02B5/00; G02B5/08; G02B5/0808; G02B5/0816; G02B5/085; G02B5/0858; G02B5/0866; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31688; Y10T428/31692
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
40 words
A reflecting plate for an illuminating lamp comprising a substrate having a surface, a thermosetting synthetic resin interlayer formed on the surface of the substrate, and a thin metallic film formed on the surface of the thermosetting synthetic resin interlayer.
Claim 2
Dependent Claim
40 words
A reflecting plate for an illuminating lamp comprising a substrate having a surface, a thermosetting synthetic resin interlayer formed on the surface of the substrate, and a thin metallic film formed on the surface of the thermosetting synthetic resin interlayer.
Claim 3
Dependent Claim
24 words
The reflecting plate of claim 1 which further comprises a transparent thermosetting synthetic resin layer formed on the surface of the thin metallic film.
Claim 4
Dependent Claim
15 words
The reflecting plate of claim 2 wherein the thermoplastic synthetic resin is a urethane resin.
Claim 5
Dependent Claim
15 words
The reflecting plate of claim 2 wherein the thermosetting synthetic resin is a melamine resin.
Claim 6
Dependent Claim
48 words
The reflecting plate of claim 2 wherein the transparent synthetic resin layer is formed on the surface of the thin metallic film by dissolving the synthetic resin in a solvent, coating the resulting solution on the surface of the thin metallic film, and thereafter curing it under heat.
Claim 7
Dependent Claim
20 words
The reflecting plate of claim 2 wherein the transparent synthetic resin layer has a thickness of 5 to 25 μm.
Claim 8
Dependent Claim
20 words
The reflecting plate of claim 6 wherein the transparent synthetic resin layer has a thickness of 10 to 20 μm.
Claim 9
Dependent Claim
25 words
The reflecting plate of claim 2 wherein the transparent synthetic resin layer has a surface hardness of 2H or higher in terms of pencil hardness.
Claim 10
Dependent Claim
20 words
The reflecting plate of claim 8 wherein the transparent synthetic resin layer has a pencil hardness of 4H or higher.
Claim 11
Dependent Claim
15 words
The reflecting plate of claim 1 wherein the substrate is composed of a metallic plate.
Claim 12
Dependent Claim
19 words
The reflecting plate of claim 10 wherein the synthetic resin interlayer has a thickness of at least 10 μm.
Claim 13
Dependent Claim
19 words
The reflecting plate of claim 11 wherein the synthetic resin interlayer has a thickness of at least 20 μm.
Claim 14
Dependent Claim
24 words
The reflecting plate of claim 10 wherein the synthetic resin interlayer has a surface roughness, R max , of not more than 0.5 μm.
Claim 15
Dependent Claim
24 words
The reflecting plate of claim 13 wherein the synthetic resin interlayer has a surface roughness, R max , of not more than 0.3 μm.
Claim 16
Dependent Claim
15 words
The reflecting plate of claim 1 wherein the thermosetting synthetic resin is a urethane resin.
Claim 17
Dependent Claim
15 words
The reflecting plate of claim 1 wherein the thermosetting synthetic resin is a melamine resin.
Claim 18
Dependent Claim
43 words
The reflecting plate of claim 1 wherein the synthetic resin interlayer is formed on the surface of the substrate by dissolving the synthetic resin in a solvent, coating the resulting solution on the surface of the substrate and thereafter curing it under heat.
Claim 19
Dependent Claim
16 words
The reflecting plate of claim 1 wherein the thin metallic film is a thin aluminum film.
Claim 20
Dependent Claim
24 words
The reflecting plate of claim 1 wherein the thin metallic film is formed on the surface of the synthetic resin interlayer by vacuum deposition.
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) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |