US4750816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochromic element comprising an organic, oxidative color-forming layer and an inorganic, reductive color-forming layer
Assignee: Toyoda Gosei Co Ltd
•
Filing: 1986-05-01
•
Granted: 1988-06-14
•
Expires: 2006-05-01
Abstract
Abstract There is disclosed an electrochromic element in which an oxidative color-forming layer is composed of an organic material and a reductive color-forming layer is composed of an inorganic material. The electrochromic element comprises a pair of electrodes, at least one of which is transparent, the oxidative color-forming layer composed of organic materials such as polyaniline, polypyrrole, polythiophene, etc. and the reductive color-forming layer composed of inorganic materials such as WO 3 , MoO 3 , TiO 2 , etc. formed between the pair of electrodes to face to each other, and an electrolytic solution or a solid or semi-solid electrolyte layer sealed between the both color-forming layers.
Inventors
- 👤 Toshiyasu Ito
- 👤 Taskaaki Mori
- 👤 Jun Minoura
- 👤 Katsuaki Okabayashi
- 👤 Shigeyuki Takahashi
- 👤 Mamoru Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:21
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/153; G02F1/157; B; B60; B60Q; B60Q3/00; B60Q3/10; B60Q3/20; B60Q3/208; G02F1/1514; G02F1/1516; G02F1/15165
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
47 words
An electrochromic element comprising a pair of electrodes, at least one of which is transparent, an organic, oxidative color-forming layer and an inorganic, reductive color-forming layer formed between said pair of electrodes to face to each other, and an electrolytic solution sealed between said both color-forming layers.
Claim 2
Dependent Claim
47 words
An electrochromic element comprising a pair of electrodes, at least one of which is transparent, an organic, oxidative color-forming layer and an inorganic, reductive color-forming layer formed between said pair of electrodes to face to each other, and an electrolytic solution sealed between said both color-forming layers.
Claim 3
Dependent Claim
27 words
An electrochromic element as claimed in claim 1 wherein said organic, oxidative color-forming layer is one member selected from the group consisting of polyaniline, polypyrrole, and polythiophene.
Claim 4
Dependent Claim
35 words
An electrochromic element as claimed in claim 1 wherein said inorganic, reductive color-forming layer is one member selected from the group consisting of WO 3 , MoO 3 and TiO 2 or a mixture thereof.
Claim 5
Dependent Claim
50 words
An electrochromic element comprising a pair of electrodes, at least one of which is transparent, an organic, oxidative color-forming layer and an inorganic, reductive color-forming layer formed between said pair of electrodes to face to each other, and a solid or semi-solid electrolyte layer formed between said both color-forming layers.
Claim 6
Dependent Claim
50 words
An electrochromic element comprising a pair of electrodes, at least one of which is transparent, an organic, oxidative color-forming layer and an inorganic, reductive color-forming layer formed between said pair of electrodes to face to each other, and a solid or semi-solid electrolyte layer formed between said both color-forming layers.
Claim 7
Dependent Claim
27 words
An electrochromic element as claimed in claim 4 wherein said organic, oxidative color-forming layer is one member selected from the group consisting of polyaniline, polypyrrole, and polythiophene.
Claim 8
Dependent Claim
35 words
An electrochromic element as claimed in claim 4 wherein said inorganic, reductive color-forming layer is one member selected from the group consisting of WO 3 , MoO 3 and TiO 2 or a mixture thereof.
References Cited (Backward Citations)
US4192581A
Cited
US4182551A
Cited
US4239350A
Cited
DE2854812A1
Cited
GB2021277A
Cited
US4350414A
Cited
EP0027855A1
Cited
DE3008768A1
Cited
US4482216A
Cited
JPS5837622A
Cited
US4645307A
Cited
JPS60184129A
Cited
JPS60263922A
Cited
EP0189601A2
Cited
DE3615379A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-06-14 | 1991-12-14 | 1992-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-14 | 1995-12-14 | 1996-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-14 | 1999-12-14 | 2000-06-14 | $7700.00 | Window Closed / Lapsed |