Patent US4042391A successfully refreshed from Google Patents.
US4042391A
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Process for forming vesicular photographic images by employing simultaneous actinic light and infra-red reflex exposure
Assignee: Mitsubishi Chemical Corp
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Filing: 1975-04-24
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Granted: 1977-08-16
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Expires: 1995-04-24
Abstract
Abstract A vesicular image is prepared by contacting an original with a vesicular photograhic element, wherein the element contains a decomposing photosensitive material; and irradiating said element with light containing infrared light from the element side of said contacted image and element.
Inventors
- 👤 Hideo Fukutani
- 👤 Hiroshi Oba
- 👤 Akane Okada
- 👤 Atsuko Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:30
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/60
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
113 words
A process for forming a vesicular image which is the same sign as that of the original, which comprises contacting an original with a supported vesicular photographic element comprising a photosensitive material which generates a gas when irradiated by light to which it is sensitive, said material dispersed or dissolved in a thermoplastic or thermosettable resin, wherein the vesicular photographic element while in contact with the original is reflex exposed simultaneously to both infrared rays and light of wavelengths to which said photosensitive material is sensitive through the vesicular element to the original so as to effect decomposition of the photosensitive marerial to generate a gas and formation of the vesicular image simultaneously.
Claim 2
Dependent Claim
113 words
A process for forming a vesicular image which is the same sign as that of the original, which comprises contacting an original with a supported vesicular photographic element comprising a photosensitive material which generates a gas when irradiated by light to which it is sensitive, said material dispersed or dissolved in a thermoplastic or thermosettable resin, wherein the vesicular photographic element while in contact with the original is reflex exposed simultaneously to both infrared rays and light of wavelengths to which said photosensitive material is sensitive through the vesicular element to the original so as to effect decomposition of the photosensitive marerial to generate a gas and formation of the vesicular image simultaneously.
Claim 3
Dependent Claim
39 words
The process of claim 1 wherein a portion of the vesicular photographic element has a vesticular image before said element is exposed simultaneously to both infrared rays and light of wave lengths within the photosensitive region of said element.
Claim 4
Dependent Claim
29 words
The process of claim 1 wherein the source of the infrared rays and the light of wavelengths within the photosensitive region of said material is a xenon flash lamp.
Claim 5
Dependent Claim
10 words
The process of claim 1, wherein the original is opaque.
Claim 6
Dependent Claim
16 words
The process of claim 1, wherein the original has an opaque portion and a transparent portion.
Claim 7
Dependent Claim
12 words
The process of claim 1, wherein the original is an aperture card.
Claim 8
Dependent Claim
19 words
The process of claim 1, wherein the original is contacted with the sensitive layer of the vesicular photographic element.
Claim 9
Dependent Claim
18 words
The process of claim 1, wherein the back of the original is covered with a heat insulating plate.
Claim 10
Dependent Claim
24 words
The process of claim 1, wherein a part of the photosensitive material of the vesicular photographic element is decomposed by using a shield plate.
References Cited (Backward Citations)
US2703756A
Cited
US2911299A
Cited
US2916622A
Cited
GB850954A
Cited
US3298833A
Cited
US3194659A
Cited
US3189455A
Cited
US3260599A
Cited
US3536490A
Cited
US3408192A
Cited
US3410686A
Cited
US3457071A
Cited
US3785821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |