US4068588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing using an electrochromic image
Assignee: Xerox Ltd
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Filing: 1976-12-08
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Granted: 1978-01-17
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Expires: 1996-12-08
Abstract
Abstract A display and printing method using an electrochromic imaging material. The electrochromic material forms a colored image in response to the formation of an image pattern on a photoconductive surface. The electrochromic material is between an electrode and the photoconductive surface when image formation takes place. The image may be utilized in a display device or in printing.
Inventors
- 👤 Keita Nakano
- 👤 Mutsuo Takenouchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:24
CPC Classifications
G; G03; G03G; G03G17/00; B; B41; B41C; B41C1/00; B41C1/10; B41C1/1041; C; C09; C09K; C09K9/00; C09K9/02; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1503; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
86 words
A printing method comprising forming a layer of electrochromic material on a conductive electrode, bringing an image recording element into contact with said electrochromic material said image recording member comprising a photoconductive layer contacting the electrochromic material, applying electromagnetic radiation in an image pattern to said photoconductive layer, applying a bias voltage to the conductive electrode to form a colored ink attractive image of said electrochromic material on said conductive electrode, applying ink to said image and transferring the ink image to an image receiving surface.
Claim 2
Dependent Claim
86 words
A printing method comprising forming a layer of electrochromic material on a conductive electrode, bringing an image recording element into contact with said electrochromic material said image recording member comprising a photoconductive layer contacting the electrochromic material, applying electromagnetic radiation in an image pattern to said photoconductive layer, applying a bias voltage to the conductive electrode to form a colored ink attractive image of said electrochromic material on said conductive electrode, applying ink to said image and transferring the ink image to an image receiving surface.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein said image recording member further comprises a conductive substrate.
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein said image recording member is transparent.
Claim 5
Dependent Claim
18 words
The method of claim 1 wherein said image pattern is applied by light passing through said recording member.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein said electrochromic material comprises a benzylbiorogenchloride.
Claim 7
Dependent Claim
16 words
The method of claim 1 wherein said colored image is capable of attracting oil base inks.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |