Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1990-06-22
1993-09-07
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430551, 430386, 430387, G03C 732
Patent
active
052427897
ABSTRACT:
A silver halide photographic material comprising a support having thereon a silver halide emulsion layer containing at least one coupler represented by the following formulae (I) and (II): ##STR1## wherein R.sub.1 represents an alkyl group, an aryl group or a heterocyclic group; R.sub.2 or R'.sub.2 represents an alkyl group, an aryl group; and X represents a coupling split-off group liked through a nitrogen or a sulfur atom.
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patent: 4559297 (1985-12-01), Seto et al.
patent: 4588679 (1986-05-01), Furutachi
patent: 4735893 (1988-04-01), Morigaki et al.
patent: 4857444 (1989-08-01), Hirose et al.
patent: 4892809 (1990-01-01), Momoki
Furutachi Nobuo
Sato Tadahisa
Bowers Jr. Charles L.
Chea Thorl
Fuji Photo Film Co. , Ltd.
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