Patent JPS6142159A successfully refreshed from Google Patents.
Patent US3840373A successfully refreshed from Google Patents.
US3840373A
Expired / Lapsed
US
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Green sensitive silver halide photographic emulsion
Assignee: Fujifilm Holdings Corp
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Filing: 1971-12-01
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Granted: 1974-10-08
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Expires: 1991-12-01
Abstract
Abstract A silver halide photographic sensitive material having a green sensitive layer and suitable for use in the diffusion transfer method is disclosed.
Inventors
- 👤 Y Oishi
- 👤 Y Yoshida
- 👤 K Shiba
- 👤 M Hinata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:47
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/28; G03C1/29
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
45 words
IN A SILVER PHOTOGRAPHIC EMULSION FOR PHOTOGRAPHIC SENSITIVE MATERIAL CONTAINING DYE DEVELOPERS SUITABLE FOR THE DIFFUSION TRANSFER METHOD, THE IMPROVEMENT WHICH COMPRISES SAID PHOTOGRAPHIC EMULSION CONTAINING A GREEN SENSITIZER COMPRISING THE COMBINATION OF AT LEAST ONE OF THE SENSITIZING DYES REPRESENTED BY THE FORMULA (1):
Claim 2
Dependent Claim
45 words
IN A SILVER PHOTOGRAPHIC EMULSION FOR PHOTOGRAPHIC SENSITIVE MATERIAL CONTAINING DYE DEVELOPERS SUITABLE FOR THE DIFFUSION TRANSFER METHOD, THE IMPROVEMENT WHICH COMPRISES SAID PHOTOGRAPHIC EMULSION CONTAINING A GREEN SENSITIZER COMPRISING THE COMBINATION OF AT LEAST ONE OF THE SENSITIZING DYES REPRESENTED BY THE FORMULA (1):
Claim 3
Dependent Claim
58 words
A silver halide photographic emulsion as claimed in claim 1 wherein the substituted alkyl group represented by R1 or R2 is selected from the group consisting of a hydroxy alkyl group, an acetoxyalkyl group, an alkoxyalkyl group, an alkyl group containing a carboxyl group, an alkyl group containing a sulfo group, an aralkyl group and an allyl group.
Claim 4
Dependent Claim
23 words
A silver halide photographic emulsion as claimed in claim 1 wherein the green sensitized combination is selected from combinations comprising sensitizing dyes of
Claim 5
Dependent Claim
30 words
A silver halide photographic emulsion as claimed in claim 1 wherein the dye developer contains a member selected from the group consisting of hydroquinonyl, o-dihydroxyphenyl and o- or p-amino-substituted hydroxyphenyl.
Claim 6
Dependent Claim
30 words
A silver halide photographic emulsion as claimed in claim 1 wherein the dye developer is selected from the group consisting of an azo dye developer and an anthraquinone dye developer.
Claim 7
Dependent Claim
33 words
A silver halide photographic emulsion as claimed in claim 5 wherein the dye developer is selected from the group consisting of 4-isopropoxy-2-(p-( Beta -hydroquinonylethyl)-phenylazo)-1-naphthol; 1-phenyl-3-N-n-hexylcarboxyamid-4-(p-(2'',5''-dihydroxyphenethyl)phenylazo)-5 -pyrazolone; and 5,8-dihydroxy-1, 4-bis-(( Beta -hydroquinonyl- Alpha -methyl)-ethylamino)anthraquinone.
Claim 8
Dependent Claim
17 words
A silver halide photographic emulsion as claimed in claim 1 wherein the silver halide is silver iodobromide.
Claim 9
Dependent Claim
21 words
A light-sensitive silver halide photographic material comprising an emulsion layer containing a silver halide photographic emulsion as claimed in claim 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |