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US4708927A
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Photographic elements with development inhibitor precursor
Assignee: Fujifilm Holdings Corp
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Filing: 1986-04-10
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Granted: 1987-11-24
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Expires: 2006-04-10
Abstract
Abstract A novel photographic element is disclosed. The element comprises a light-sensitive element including a light-sensitive silver halide emulsion layer coated on a support, wherein said silver halide emulsion layer or other photographic layers contain at least one development inhibitor precursor represented by formula (I) ##STR1## wherein A represents a phenyl group or a 5- or 6-membered nitrogen-containing heterocyclic ring group; L represents a chemical bond or divalent linking group; p and q each represents an integer of 1 or 2; and n represents 0 or 1.
Inventors
- 👤 Hisashi Okamura
- 👤 Hiroshi Kawamoto
- 👤 Yoshio Sakakibara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:04
CPC Classifications
G; G03; G03C; G03C8/00; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158; Y10S430/161
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
82 words
A photographic element which comprises a light-sensitive element including a light-sensitive silver halide emulsion layer coated on a support, wherein said silver halide emulsion layer or other photographic layers contain at least one development inhibitor precursor represented by formula (I) ##STR16## wherein A represents a phenyl group or a 5- or 6-membered nitrogen-containing heterocyclic ring group; L represents a chemical bond or divalent linking group; p and q each represents an integer of 1 or 2; and n represents 0 or 1.
Claim 2
Dependent Claim
82 words
A photographic element which comprises a light-sensitive element including a light-sensitive silver halide emulsion layer coated on a support, wherein said silver halide emulsion layer or other photographic layers contain at least one development inhibitor precursor represented by formula (I) ##STR16## wherein A represents a phenyl group or a 5- or 6-membered nitrogen-containing heterocyclic ring group; L represents a chemical bond or divalent linking group; p and q each represents an integer of 1 or 2; and n represents 0 or 1.
Claim 3
Dependent Claim
50 words
A photographic element as in claim 1, wherein A represents a phenyl group including a substituent selected from the group consisting of an alkyl group, an alkoxy group, a nitro group, a halogen atom, an alkoxycarbonyl group, a substituted or unsubstituted carbamoyl group, and a substituted or unsubstituted sulfamoyl group.
Claim 4
Dependent Claim
34 words
A photographic element as in claim 1, wherein said nitrogen-containing heterocyclic ring group represented by A is selected from the group consisting of tetrazole rings, triazole rings, diazole rings, pyrimidine rings, and monoazole rings.
Claim 5
Dependent Claim
82 words
A photographic element as in claim 1, wherein the divalent group represented by L is selected from the group consisting of an alkylene group having from 1 to 10 carbon atoms, an arylene group having from 6 to 10 carbon atoms, ##STR17## and combinations thereof, wherein R represents a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms, an aryl group having from 6 to 10 carbon atoms, or an aralkyl group having from 7 to 10 carbon atoms.
Claim 6
Dependent Claim
50 words
A photographic element as in claim 1, wherein said development inhibitor precursor is represented by formula ##STR18## wherein Z represents a nonmetallic atomic group forming a substituted or unsubstituted 5- or 6-membered nitrogen-containing heterocyclic ring group, and L, p, q, and n are the same as defined in claim 1.
Claim 7
Dependent Claim
24 words
A photographic element as in claim 5, wherein Z represents a tetrazole ring group, p and q each represents 1, and n represents 0.
Claim 8
Dependent Claim
36 words
A photographic element as in claim 1, wherein the amount of development inhibitor precursor represented by formula (I) is from 10 -4 to 10 -1 mol per mol of silver in said silver halide emulsion layer.
Claim 9
Dependent Claim
36 words
A photographic element as in claim 5, wherein the amount of development inhibitor precursor represented by formula (II) is from 10 -4 to 10 -1 mol per mol of silver in said silver halide emulsion layer.
Claim 10
Dependent Claim
36 words
A photographic element as in claim 6, wherein the amount of development inhibitor precursor represented by formula (II) is from 10 -4 to 10 -1 mol per mol of silver in said silver halide emulsion layer.
Claim 11
Dependent Claim
59 words
A photographic element as in claim 1, wherein the photographic element comprises a light-sensitive element having at lease one light-sensitive silver halide emulsion layer combined with a dye image donor compound coated on a first support, and an image-receiving element having an image-receiving layer coated on a support which is the same as or different from said first support.
Claim 12
Dependent Claim
77 words
A photographic element as in claim 1, comprising a color diffusion transfer photographic element which contains at lease one development inhibitor precursor represented by formula (I), wherein said photographic element comrises (i) a support, (ii) a light-sensitive element which contains at least one silver halide emulsion layer and a dye image donor compound combined therewith, (iii) an image-receiving element which fixes a diffusive dye produced from said dye image donor compound so as to form an image.
Claim 13
Dependent Claim
118 words
A photographic element as in claim 1, comprising a color diffusion transfer photographic element which contains at least one development inhibitor precursor represented by formula (I), wherein said photographic element has an image-receiving layer which fixes a diffusive dye on a transparent support so that it forms an image, a white color reflective layer, a light screen layer, a light-sensitive sheet on which at least one silver halide emulsion layer combined with a dye image donor compound is laminated, an alkali treatment composition which enables silver halide that has been exposed to light to be developed, and a cover sheet having a neutralizing composition which neutralizes said alkali treatment composition, on a support different from said first support.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-11-23 | 1991-05-25 | 1991-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-23 | 1995-05-25 | 1995-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-23 | 1999-05-25 | 1999-11-24 | $7700.00 | Window Closed / Lapsed |