The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 1980
Filed:
Sep. 22, 1978
Morio Yagihara, Minami-ashigara, JP;
Yukio Yokota, Minami-ashigara, JP;
Fuji Photo Film Co., Ltd., Minami-ashigara, JP;
Abstract
A photographic silver halide light-sensitive emulsion containing a cyan dye forming, colorless coupler having, at the coupling position, an alkoxy group having at least one sulfonamido or sulfamoyl group as a substituent and represented by one of the following general formulae (I) and (II): ##STR1## wherein R represents a saturated or unsaturated, divalent aliphatic group (except those having an aryl group as a substituent on the carbon atom adjacent the oxygen atom bonded to the coupling position); R.sub.1, R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom, an aliphatic group, or an aromatic group; and R.sub.2 represents an aliphatic group, an aromatic group or a heterocyclic group; and wherein R.sub.3 and R.sub.4 can combine to form a ring; a photographic silver halide light-sensitive element comprising a support having thereon at least one silver halide emulsion layer and containing at least one of the cyan dye-forming, colorless couplers described above; and an image formation method using the same.