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. 05, 1999
Filed:
Mar. 24, 1997
Kazunobu Katoh, Kanagawa, JP;
Shinnichi Morishima, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A method for forming an image which comprises imagewise-exposing a silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the emulsion layer or other hydrophilic colloid layer contains a hydrazine derivative as a nucleating agent and contains at least one compound represented by formula (A); and then developing the exposed photographic material with a developer having a pH of 9.0 to 11.0 which contains an ascorbic acid type developing agent and does not substantially contain a dihydroxybenzene type developing agent: ##STR1## wherein X represents a hydrogen atom, an aryl group, a heterocyclic group, or a group represented by formula (B): ##STR2## wherein each of R.sub.1, R.sub.2 and R.sub.3 may be the same or different, and each represents a hydrogen atom or a group other than a hydroxyl group.