EP0690344A1 — Silver halide color photographic light-sensitive material
Assigned to Konica Minolta Inc · Expires 1996-01-03 · 30y expired
What this patent protects
A silver halide color photographic light-sensitive material comprising a support and provided thereon, a blue-sensitive, a green-sensitive and a red-sensitive silver halide emulsion layer, wherein at least one of said red-sensitive silver halide emulsion layer comprises at least …
USPTO Abstract
A silver halide color photographic light-sensitive material comprising a support and provided thereon, a blue-sensitive, a green-sensitive and a red-sensitive silver halide emulsion layer, wherein at least one of said red-sensitive silver halide emulsion layer comprises at least one compound represented by Formula 1 or Formula 2: wherein R₁ and R₂ independently, and Q₁ and Q₂ independently represent an aliphatic group, provided that the total number of carbon atoms contained in R₁ and R₂ and in Q₁ and Q₂ is 8 or more; R₃ and Q₃ independently represent a substituent; n and m are each 0 or 1 and R and Q independently an aliphatic group, and aryl group or a heterocyclic group.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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