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:
Apr. 04, 1989
Filed:
Jun. 09, 1987
Toyoaki Masukawa, Hino, JP;
Yasuo Tsuda, Hino, JP;
Hidetaka Ninomiya, Hino, JP;
Noritaka Nakayama, Hino, JP;
Toshihiko Kimura, Hino, JP;
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Abstract
A silver halide photographic light-sensitive material containing a novel cyan dye forming coupler is disclosed. The cyan dye forming coupler is represented by the following formula. ##STR1## In the formula R.sub.1 and R.sub.2 are each a substituent, and X is a group capable of being splitted off from the coupler residue upon reaction of the coupler residue with the oxydized product of a color developing agent; and the total number of carbon atoms contained in the groups represented by R.sub.1, R.sub.2 and X is from 8 to 50. The spectral absorption characteristics of cyan dye images formed by the coupler of the invention are so sharp and steep that color reproduction can be achieved very advantageously.