Color image reproduction device
Abstract
Abstract A PHOTOELECTROPHORETIC COLOR IMAGE REPRODUCTION DEVICE IN WHICH AN ELECTROPHORETIC SUSPENSION LAYER HAVING A WHITE COLORED SUSPENDING MEDIUM AND AT LEAST THREE DIFFERENTLY COLORED PHOTOSENSITIVE ELECTROPHORETIC MATERIALS IN THE FORM OF FINELY DIVIDED POWDER SUSPENDED IN SAID WHITE COLORED SUSPENDING MEDIUM IS INTERPOSED BETWEEN A PAIR OF ELECTRODES. THE THREE DIFFERENTLY COLORED PHOTOSENSITIVE ELECTROPHORETIC MATERIALS ARE CYAN COLORED MATERIAL WHICH IS PRINCIPALLY PHOTOSENSITIVE TO RED LIGHT, MAGENTA COLORED MATERIAL WHICH IS PRINCIPALLY PHOTOSENSITIVE TO GREEN LIGHT, AND YELLOW COLORED MATERIAL WHICH IS PRINCIPALLY PHOTOSENSITIVE TO BLUE LIGHT. MEANS ARE INCLUDED TO IMPOSE A D.C. ELECTRIC FIELD ACROSS THE ELECTROPHORETIC SUSPENSION LAYER BETWEEN THE ELECTRODES AND TO EXPOSE THE ELECTROPHORETIC SUSPENSION LAYER TO A COLOR IMAGE THROUGH THE TRANSPARENT ELECTRODE, SAID ELECTRIC FIELD ACTING TO CHANGE, IN COOPERATION WITH THE COLOR IMAGE, THE ELECTROPHORETIC PROPERTY OF THE PHOTOSENSITIVE ELECTROPHORETIC MATERIALS SO AS TO CHANGE ELECTROPHORETICALLY THE SPATIAL DISTRIBUTION OF THE PHOTOSENSITIVE ELECTROPHORETIC MATERIALS, IN ORDER TO REPRODUCE THE COLOR IMAGE.
Inventors
- 👤 Isao Ota
- 👤 Tetsuro Otsuka
Bibliographic Details
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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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |