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US4147547A Expired / Lapsed US ⏱️ 0.0 years remaining

Silver halide color photographic material

Assignee: Konica Minolta Inc
•
Filing: 1978-01-10
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Granted: 1979-04-03
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Expires: 1998-01-10
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Abstract

Abstract A light-sensitive silver halide photographic material having improved anti-fogging properties is described.

Inventors

  • 👤 Takeo Koitabashi
  • 👤 Noboru Fujimori
  • 👤 Shigemasa Itoh

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 22:19
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/28; G03C1/29; G03C1/34

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 185 words
In a light-sensitive silver halide color photographic material comprising at least one red-sensitive silver halide emulsion layer sensitized with a red-sensitive dye selected from the group consisting of: ##STR6## and a green-sensitive silver halide emulsion layer sensitized with a green sensitizing dye, selected from the group consisting of ##STR7## the improvement wherein at least one compound of the following general formula ##STR8## wherein Y 1 , Y 2 each represents non-metallic atoms necessary to complete a nitrogen-containing heterocyclic ring selected from the group consisting of pyrroline, thiazoline, thiazole, benzothiazole, naphthothiazole, selenazole, benzoselenazole, naphthoselenazole, oxazole, benzoxazole, naphthoxazole, imidazole, benzimidazole or pyridine, and R 1 represents a lower alkyl group, hydroxyalkyl group, carboxyalkyl group or a sulfoalkyl group, R 2 represents a hydrogen atom or a lower alkyl group, A stands for an alkylene group, a group --(CH 2 ) 2 O(CH 2 ) 2 -- or a group --(CH 2 ) 2 OCH 2 , CHCH 2 ,-- and n 2 represents 0 or 1 is present in either one or both of said red-sensitive silver halide emulsion layer and said green-sensitive silver halide emulsion layer.
Claim 2
Dependent Claim 185 words
In a light-sensitive silver halide color photographic material comprising at least one red-sensitive silver halide emulsion layer sensitized with a red-sensitive dye selected from the group consisting of: ##STR6## and a green-sensitive silver halide emulsion layer sensitized with a green sensitizing dye, selected from the group consisting of ##STR7## the improvement wherein at least one compound of the following general formula ##STR8## wherein Y 1 , Y 2 each represents non-metallic atoms necessary to complete a nitrogen-containing heterocyclic ring selected from the group consisting of pyrroline, thiazoline, thiazole, benzothiazole, naphthothiazole, selenazole, benzoselenazole, naphthoselenazole, oxazole, benzoxazole, naphthoxazole, imidazole, benzimidazole or pyridine, and R 1 represents a lower alkyl group, hydroxyalkyl group, carboxyalkyl group or a sulfoalkyl group, R 2 represents a hydrogen atom or a lower alkyl group, A stands for an alkylene group, a group --(CH 2 ) 2 O(CH 2 ) 2 -- or a group --(CH 2 ) 2 OCH 2 , CHCH 2 ,-- and n 2 represents 0 or 1 is present in either one or both of said red-sensitive silver halide emulsion layer and said green-sensitive silver halide emulsion layer.
Claim 3
Dependent Claim 29 words
A light-sensitive silver halide color photographic material as is defined in claim 1 wherein the nitrogen-containing heterocyclic ring is selected from the group consisting of benzoxazole, benzothiazole and benzoselenazole.
Claim 4
Dependent Claim 35 words
A light-sensitive silver halide color photographic material as is defined in claim 1 wherein the red-sensitive silver halide emulsion layer contains 0.08 to 0.5 g of the compound selected from the group consisting of; ##STR9##
Claim 5
Dependent Claim 37 words
A light-sensitive silver halide color photographic material as is defined in claim 1 wherein the red-sensitive silver halide emulsion layer is sensitized with at least one of spectral sensitizing dyes selected from the group consisting of; ##STR10##
Claim 6
Dependent Claim 37 words
A light-sensitive silver halide color photographic material as is defined in claim 1 wherein the green-sensitive silver halide emulsion layer is sensitized with at least one of spectral sensitizing dyes selected from the group consisting of; ##STR11##
Claim 7
Dependent Claim 21 words
A light-sensitive silver halide color photographic material as is defined in claim 4 wherein the red-sensitive silver halide is silver iodobromide.
Claim 8
Dependent Claim 21 words
A light-sensitive silver halide color photographic material as is defined in claim 5 wherein the green-sensitive silver halide is silver iodobromide.
Claim 9
Dependent Claim 24 words
A light-sensitive silver halide color photographic material as is defined in claim 1 wherein said photographic material is a reversal type color photographic material.
Claim 10
Dependent Claim 22 words
A light-sensitive silver halide color photographic material as is defined in claim 1 wherein said photographic material is for high temperature processing.

References Cited (Backward Citations)

US3038800A Cited
US3432303A Cited
US3717468A Cited
US3847613A Cited
US3953215A Cited
US4018610A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-04-02 1982-10-02 1983-04-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-04-02 1986-10-02 1987-04-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-04-02 1990-10-02 1991-04-03 $7700.00 Window Closed / Lapsed

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