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:
Dec. 21, 1999
Filed:
Dec. 18, 1997
Toshiki Taguchi, Kanagawa, JP;
Kozo Sato, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
The object is to provide a silver halide photographic light-sensitive material containing a developing agent which can effect color developing reaction efficiently with a known coupler without being restricted by the kind of the coupler. Namely, the present invention is a silver halide photographic light-sensitive material comprising a support having thereon at least one layer comprising at least one compound represented by the following general formula (1): ##STR1## wherein, R.sub.1 to R.sub.4 represent a hydrogen atom or substituent, A represents a hydroxyl group or substituted amino group, X represents a di- or higher valent connecting group selected from --CO--, --SO--, --SO.sub.2 -- and --PO<, Y represents a bivalent connecting group, Z represents a group which is nucleophilic and can attack X when the present compound is oxidized, and R.sub.1 and R.sub.2, and R.sub.3 and R.sub.4 may be linked each other to form a ring, respectively.