EP0154443A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Colour member and method of manufacturing same
Assignee: Seiko Instruments Inc
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Filing: 1985-02-19
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Granted: —
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Expires: 2005-02-19
Abstract
Abstract A colour member comprises a substrate (6), an electroconductive member (7) on the substrate and a coloured layer (8) on the electroconductive member. The electroconductive member consists of a first electroconductive layer (7a) on the substrate (6) and a second electroconductive layer (7b) on the first electroconductive layer. The second electroconductive layer is made of an electroconductive material resistant to the reaction products of electrolysis of water and has the coloured layer (8) thereon.
Inventors
- 👤 Naoki C/O Seiko Instruments Kato
- 👤 Koji C/O Seiko Instruments Iwasa
- 👤 Hitoshi C/O Seiko Instruments Kamamori
- 👤 Mitsuru C/O Seiko Instruments Suginoya
- 👤 Yutaka C/O Seiko Instruments Sano
- 👤 Yumiko C/O Seiko Instruments Terada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 23:13
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/201; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/133516
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
82 words
A colour member comprising a substrate (6), an electroconductive member (7) on said substrate and a coloured layer (8) onthe electroconductive member (7) characterised in that the electroconductive member (7) consists of a first electroconductive layer (7a) on the substrate (6) and a second electroconductive layer (7b) on said first electroconductive layer (7a), the second electroconductive layer (7b) being made of an electroconductive material resistant to the reaction of products of the electrolysis of water and having the coloured layer (8) thereon.
Claim 2
Dependent Claim
82 words
A colour member comprising a substrate (6), an electroconductive member (7) on said substrate and a coloured layer (8) onthe electroconductive member (7) characterised in that the electroconductive member (7) consists of a first electroconductive layer (7a) on the substrate (6) and a second electroconductive layer (7b) on said first electroconductive layer (7a), the second electroconductive layer (7b) being made of an electroconductive material resistant to the reaction of products of the electrolysis of water and having the coloured layer (8) thereon.
Claim 3
Dependent Claim
27 words
A colour member as claimed in claim 1 characterised in that said coloured layer (8) is formed by electrodepositing colouring material on the second electroconductive layer (7b).
Claim 4
Dependent Claim
29 words
A colour member as claimed in claim 1 characterised in that said coloured layer is formed by electrodepositing colouring material and a polymer on the second electroconductive layer (7b).
Claim 5
Dependent Claim
42 words
A colour member as claimed in any preceding claim characterised in that said second electroconductive layer (7b) is made of at least one of tin oxide, antimony oxide, zinc oxide, cadmium oxide, gallium oxide, germanium oxide, gold, silver, nickel, aluminium and silicon.
Claim 6
Dependent Claim
23 words
A colour member as claimed in any preceding claim characterised in that said first and second electroconductive layers (7a, 7b) are light transmissive.
Claim 7
Dependent Claim
30 words
A colour member as claimed in any preceding claim characterised in that said first electroconductive layer (7a) has an electrical resistance lower than that of the second electroconductive layer (7b).
Claim 8
Dependent Claim
22 words
A colour member as claimed in any preceding claim characterised in that said first electroconductive layer (7a) is made of indium oxide.
Claim 9
Independent Claim
87 words
A method of manufacturing a colour member comprising the steps of: forming electroconductive members (7) on a substrate (6) and colouring selective electroconductive members different colours by electrodepositing colouring material and a polymer to form coloured layers (8) characterised in that the electroconductive members (7) are formed by a first electroconductive layer (7a) on the substrate (6) and a second electroconductive layer made of an electroconductive material resistant to the reaction products of the electrolysis of water, the coloured layers being electrodeposited on the second electroconductive layers.
Claim 10
Independent Claim
87 words
A method of manufacturing a colour member comprising the steps of: forming electroconductive members (7) on a substrate (6) and colouring selective electroconductive members different colours by electrodepositing colouring material and a polymer to form coloured layers (8) characterised in that the electroconductive members (7) are formed by a first electroconductive layer (7a) on the substrate (6) and a second electroconductive layer made of an electroconductive material resistant to the reaction products of the electrolysis of water, the coloured layers being electrodeposited on the second electroconductive layers.
Claim 11
Dependent Claim
15 words
A method as claimed in claim 8 characterised in that said colouring material is water-insoluble.
Claim 12
Dependent Claim
25 words
A method as claimed in claim 8 or 9 characterised in that said colouring material is a pigment, a dispersion dye or a solvent dye.
Claim 13
Independent Claim
37 words
A method as claimed in any of claims 8 to 10 characterised in that the coloured layers are composed of a mixture of an electrodeposition polymer and cclouring material, the electrodepcsition polymer being a negatively charged polymer.
References Cited (Backward Citations)
No citation records indexed.
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