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:
Nov. 23, 1993
Filed:
Jun. 11, 1991
Masato Taniguchi, Minami-ashigara, JP;
Nobutaka Ohki, Minami-ashigara, JP;
Koichi Nakamura, Minami-ashigara, JP;
Fuji Photo Film Co., Ltd., Minami-ashigara, JP;
Abstract
There are provided p-phenylenediamine color developing agent such as ##STR1## which makes it possible to form a yellow dye having a color image fastness to light while its ordinary photographic properties such as the developing activity and hue are kept. A processing liquid composition for a silver halide color photosensitive material comprises the p-phenylenediamine color developing agent and a pH buffering agent, and has a pH of 9 to 12. A process for forming a color image of claim comprises color-developing an image-wise exposed silver halide color photographic material with the processing liquid composition at a temperature of 30.degree. to 45.degree. C. for 20 seconds to 4 minutes.