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. 06, 1982
Filed:
Nov. 06, 1980
Yasushi Oishi, Minami-ashigara, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A color photographic material suitable for processing with an alkaline solution in the presence of a developing agent is described, comprising a support and, in sequence, the following five layers: (1) a first emulsion layer containing an internal latent image forming direct reversal silver halide emulsion that is selectively sensitive to light in a first spectral region; (2) a first color material layer containing a ballasted dye releasing redox compound that provides a dye image that selectively absorbs light in the first spectral region; (3) an intermediate layer containing a ballasted reducing agent that captures an oxidized developing agent or electron transfer agent; (4) a second emulsion layer containing an internal latent image forming direct reversal silver halide emulsion that is selectively sensitive to light in a second spectral region; and (5) a second color material layer containing a ballasted dye releasing redox compound that provides a dye image that selectively absorbs light in the second spectral region. The improvement is that a surface latent image forming negative silver halide emulsion that is sensitive to light in the second spectral region is uniformly incorporated in the intermediate layer (3) so as to make uniform the distribution of oxidation of said reducing agent that is formed in the intermediate layer (3) as a result of development of the second emulsion layer.