US5104767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming method
Assignee: Fujifilm Holdings Corp
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Filing: 1990-09-27
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Granted: 1992-04-14
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Expires: 2010-09-27
Abstract
Abstract A method of forming an image is disclosed comprising irradiating a heat-sensitive recording material with a laser beam, wherein the heat-sensitive recording material includes a support having provided thereon a light-absorbing layer containing microcapsules which encapsulate a core substance containing carbon black and a binder, and tranferring a latent image thus formed on the light-absorbing layer, in accordance with the pattern and amount of the laser beam irradiation, to an image-receiving film under pressure to thereby obtain a visible image on the image-receiving film.
Inventors
- 👤 Kotaro Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:33
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/28; B41M5/287; Y; Y10; Y10S; Y10S430/00; Y10S430/146; Y10S430/165
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
81 words
A method of forming an image comprising: irradiating a heat-sensitive recording material with a laser beam, wherein said heat-sensitive recording material includes a support having provided thereon a light-absorbing layer containing microcapsules which encapsulate a core substance containing carbon black and a binder; and transferring a latent image thus formed on the light-absorbing layer, in accordance with a pattern and amount of laser beam irradiation, to an image-receiving film under pressure to thereby obtain a visible image on said image-receiving film.
Claim 2
Independent Claim
81 words
A method of forming an image comprising: irradiating a heat-sensitive recording material with a laser beam, wherein said heat-sensitive recording material includes a support having provided thereon a light-absorbing layer containing microcapsules which encapsulate a core substance containing carbon black and a binder; and transferring a latent image thus formed on the light-absorbing layer, in accordance with a pattern and amount of laser beam irradiation, to an image-receiving film under pressure to thereby obtain a visible image on said image-receiving film.
Claim 3
Dependent Claim
26 words
A method of forming an image as in claim 1, wherein the light-absorbing layer is irradiated while said light-absorbing layer is attached to said image-receiving film.
Claim 4
Dependent Claim
25 words
A method of forming an image as in claim 1, wherein said carbon black has a mean grain size of from 100 millimicrons or less.
Claim 5
Dependent Claim
28 words
A method of forming an image as in claim 1, wherein said carbon black is selected from the group consisting of furnace black, channel black and thermal black.
Claim 6
Dependent Claim
28 words
A method of forming an image as in claim 1, wherein said carbon black is coated on said light-absorbing layer at a rate of 0.1 to 10 g/m2.
Claim 7
Dependent Claim
28 words
A method of forming an image as in claim 1, wherein said support for the light-absorbing layer is comprised of paper, synthetic polymer, or a laminate support thereof.
Claim 8
Dependent Claim
34 words
A method of forming an image as in claim 1, in which the image-receiving film is a transparent synthetic polymer film and the light-absorbing layer is irradiated from the side of the image-receiving film.
Claim 9
Dependent Claim
45 words
A method of forming an image as in claim 1, wherein said binder is an oily composition comprising a polymer, a low boiling point solvent incapable of dissolving or swelling binder polymers and a high boiling point solvent capable of dissolving or swelling binder polymers.
Claim 10
Dependent Claim
61 words
A method of forming an image as in claim 8, wherein said binder contains a polymer selected from the group consisting of polyolefins, olefin copolymers, styrene resins, styrene-butadiene copolymers, epoxy resins, polyesters, polyvinyl pyrrolidones, polyamides, coumarone-indene copolymers, methyl vinyl ethers, maleic anhydride copolymers, polyamides, polyurethanes, polyureas, acrylate polymers, methacrylate polymers, acrylic acid-long chain alkyl methacrylate copolymers, polyvinyl acetates and polyvinyl chlorides.
Claim 11
Dependent Claim
66 words
A method of forming an image as in claim 1, in which wall material of the microcapsules is selected from the group consisting of a polyurea, polyurethane, polyamide, polyester or epoxy resin, and which has a glass transition point in the range of from 80° to 150° C. and which may be ruptured when heated at a temperature falling within said glass-transition temperature range under pressure.
Claim 12
Dependent Claim
43 words
A method of forming an image as in claim 1, wherein said laser beam is generated from a laser source selected from the group consisting of a helium-neon laser, an argon laser, a carbon dioxide laser, a YAG laser and a semiconductor laser.
Claim 13
Dependent Claim
24 words
A method of forming an image as in claim 1, wherein said latent image transferring pressure is from 50 to 500 kgs/cm 2 .
Claim 14
Dependent Claim
118 words
A method of forming an image as in claim 1, wherein pressure rollers have been previously heated to a temperature lower by 10° to 50° C. than the glass-transition temperature of the microcapsule wall material polymer, and the light-absorbing layer is preattached to the image-receiving film made of a transparent synthetic polymer film under a pressure of from 100 to 300 kg/cm 2 with said rollers, whereafter a laser beam is irradiated upon the attached sheets through the image-receiving layer in manner such that the laser beam may be focused at the interface between the light-absorbing layer and the image-receiving film, and thereafter the image-receiving sheet is peeled off from the light-absorbing sheet to obtain a recorded image.
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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) | 1995-04-14 | 1995-10-14 | 1996-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-14 | 1999-10-14 | 2000-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-14 | 2003-10-14 | 2004-04-14 | $7700.00 | Window Closed / Lapsed |