← Back to Patent Explorer
US3770436A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for forming cyan image in light-sensitive color photographic material

Assignee: Konica Minolta Inc
•
Filing: 1971-12-23
•
Granted: 1973-11-06
•
Expires: 1991-12-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A process for forming a cyan image in a light-sensitive color photographic material, characterized in that a light-sensitive color photographic material having a silver halide emulsion layer incorporated with a compound of the formula WHEREIN A is a cyan image-forming coupler residue having an Alpha -naphthol or phenol nucleus; IS A GROUP BONDED TO THE P-POSITION OF THE HYDROXYL GROUP OF A; and Z is an atomic group necessary for forming an indazolyl group, is exposed to light imagewise and subjected to color development, or a lightsensitive color photographic material is exposed to light imagewise and subjected to color development using a color developer incorporated with the compound of the above-mentioned formula, thereby forming a cyan image corresponding to the silver image formed in the photographic material.

Inventors

  • 👤 M Fujiwhara
  • 👤 S Matsuo
  • 👤 R Sato
  • 👤 T Koga

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 11:59
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30523

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 26 words
A process for forming a cyan image in a light-sensitive color photographic material as claimed in claim 1, wherein said compound is represented by the formula
Claim 2
Dependent Claim 48 words
A process for forming a cyan image in a light-sensitive color photographic material as claimed in claim 1, wherein said compound is selected from the group consisting of: 1-hydroxy-4-(2''-indazolyl)-N-( delta (2,4-di-tert-amylphenoxy)-butyl)-2-naphthamide; 1-hydroxy-4-(2''-(5-chloroindazolyl))-N-(n-dodecyl)-2-naphthamide; 1-hydroxy-4-(2''-(6-nitroindazolyl))-N-( delta (2,4-di-tert-amylphenoxy)-butyl)-2-naphthamide; 1-hydroxy-4-(2''-(6-aminoindazolyl))-N-( delta (2,4-di-tert-amylphenoxy)-butyl)-2-naphthamide; 1-hydroxy-4-(2''-(6-acetaminoindazolyl))-N-( delta (2,4-di-tert-amylphenoxy)-butyl)-2-naphthamide; 1-hydroxy-4-(2''-(6-chloroindazolyl))-4''-(4-tert-butylphenoxy)-2 -naphthanilide; 1-hydroxy-4-(2''-(6-nitroindazolyl))-N-(n-dodecyl)-2-naphthamide; 1-hydroxy-4-(2''-(5-chloroindazolyl))-N-(2''-ethylhexyl)-naphthamide; 1-hydroxy-4-(2''-indazolyl)-4''-(4-tert-butylphenoxy)-2-naphthanilide and 1-hydroxy-4-(2''-indazolyl)-N-(n-octadecyl)-2-naphthamide.

References Cited (Backward Citations)

US2296306A Cited
US2353754A Cited
US3148062A Cited
US3617291A Cited
US3620745A Cited
US3703375A Cited
US3620747A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-11-05 1977-05-07 1977-11-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-11-05 1981-05-07 1981-11-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-11-05 1985-05-07 1985-11-06 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag