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Color photographic materials containing high-boiling organic solvent

Assignee: Akira Tanaka
•
Filing: 1977-07-25
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Granted: 1978-04-04
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Expires: 1997-07-25
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Abstract

Abstract in a highly or superhighly sensitive color photographic material having at least one highly or superhighly light-sensitive silver halide emulsion layer containing a color-forming coupler and silver iodobromide grains color-sensitized with a dye having at least one sulfo group or carboxy group, the silver halide emulsion grains having a mean grain size of larger than about 1 micron, the occurrence of fog due to pressure stimulus is prevented effectively by the incorporation of a high-boiling organic solvent having a boiling point of higher than about 175° C at normal pressure in the silver halide emulsion layer in an amount of higher than about 20% by weight of the amount of binder present in the emulsion layer.

Inventors

  • 👤 Akira Tanaka
  • 👤 Akikazu Mikawa
  • 👤 Yuji Mihara
  • 👤 Yasuo Mukunoki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 18:05
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-04-03 1981-10-03 1982-04-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-04-03 1985-10-03 1986-04-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-04-03 1989-10-03 1990-04-04 $7700.00 Window Closed / Lapsed

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