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:
Sep. 21, 1993
Filed:
Apr. 10, 1992
Applicant:
Inventors:
Masato Okuyama, Odawara, JP;
Yukio Ohya, Odawara, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430576 ; 430584 ; 430585 ; 430586 ; 430588 ; 430600 ; 430611 ; 430614 ; 430615 ;
Abstract
Disclosed is a light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, wherein (1) the silver halide emulsion is spectrally sensitized by a red-sensitive sensitizing dye and contains a macrocyclic compound having at least one hetero atom, (2) a number of aliphatic rings forming the macrocyclic compound is 4 or less, and (3) the macrocyclic compound has an aromatic ring, which has good aging storage stability and excellent safelight safety characteristics, and can provide high sensitivity stably.