US4933050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a planar dimmer
Assignee: Toyoda Gosei Co Ltd
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Filing: 1989-08-01
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Granted: 1990-06-12
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Expires: 2009-08-01
Abstract
Abstract A process for producing planar dimmer comprising a transparent base, a dimming part, capable of dimming, disposed on the base, the dimming part comprising a first electrode layer formed on the base, a second electrode layer set facing the first electrode layer, a coloring part, disposed between the two electrode layers, and colors or discolors in response to the stimulus from the two electrode layers, and a conducting part disposed between the base and the first electrode layer in such a way as to be in contact with the first electrode layer in order to apply a uniform voltage throughout the first electrode layer. The process includes forming paint stripes, electrolessly plating a metal film over each of the stripes, forming an electrode layer over the metallized stripes, and forming a color-forming layer over the electrode layer.
Inventors
- 👤 Toshiyasu Ito
- 👤 Jun Minoura
- 👤 Takaaki Mori
- 👤 Shigeyuki Takahashi
- 👤 Mamoru Kato
- 👤 Junichi Shimada
- 👤 Fujio Hayakawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:59
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/153; G02F1/155
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
83 words
A method of manufacturing a planar dimmer comprising the steps for: applying a thermosetting resin paint mixed with palladium and copper in long stripes, on a base made of glass or heat resistant transparent resin, hardening said paint by heating, immersing said hardened paint in acid, forming metal films on said long stripes by electroless plating, forming an electrode layer on said base that has said long stripes and metal films formed on it, and forming a color-forming layer on said electrode layer.
Claim 2
Independent Claim
83 words
A method of manufacturing a planar dimmer comprising the steps for: applying a thermosetting resin paint mixed with palladium and copper in long stripes, on a base made of glass or heat resistant transparent resin, hardening said paint by heating, immersing said hardened paint in acid, forming metal films on said long stripes by electroless plating, forming an electrode layer on said base that has said long stripes and metal films formed on it, and forming a color-forming layer on said electrode layer.
Claim 3
Dependent Claim
24 words
A method of manufacturing a planar dimmer, as set forth in claim 1, further including the step for performing electroplating after said electroless plating.
Claim 4
Independent Claim
138 words
A method of manufacturing a planar dimmer comprising the steps for: applying an acrylic paint that hardens through exposure to ultraviolet radiation, which comprises an acrylic resin that hardens through exposure to ultraviolet radiation and rubber components, in the form of long stripes on a base made of any one of polycarbonate and polymethyl metacrylate, hardening said paint by exposing said base to ultraviolet radiation while moving at a fixed speed, etching the base, denaturing said paint to a higher pH by immersion in acid, supplying catalysts to said paint, reimmersing said paint in acid after having been supplied with catalysts, forming metal films on said long stripes by electroless plating, forming an electrode layer on said base after having said long stripes and metal films formed on it, and forming a color-forming layer on said electrode layer.
Claim 5
Independent Claim
138 words
A method of manufacturing a planar dimmer comprising the steps for: applying an acrylic paint that hardens through exposure to ultraviolet radiation, which comprises an acrylic resin that hardens through exposure to ultraviolet radiation and rubber components, in the form of long stripes on a base made of any one of polycarbonate and polymethyl metacrylate, hardening said paint by exposing said base to ultraviolet radiation while moving at a fixed speed, etching the base, denaturing said paint to a higher pH by immersion in acid, supplying catalysts to said paint, reimmersing said paint in acid after having been supplied with catalysts, forming metal films on said long stripes by electroless plating, forming an electrode layer on said base after having said long stripes and metal films formed on it, and forming a color-forming layer on said electrode layer.
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) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |