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:
Jan. 17, 1978
Filed:
Feb. 17, 1976
Motohiko Tsubota, Minami-ashigara, JA;
Sosuke Hanai, Minami-ashigara, JA;
Yasushi Oishi, Minami-ashigara, JA;
Hidefumi Sera, Minami-ashigara, JA;
Nobuo Yamamoto, Minami-ashigara, JA;
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Abstract
In a diffusion transfer color photographic material including a photosensitive element comprising silver halide emulsion layers having associated therewith dye image forming materials, an image receiving element, and a liquid processing composition for developing the silver halide emulsion layers after image-wise exposure and diffusing the dye images formed into the image receiving element, the dye images formed are stabilized and the formation of stains at blank areas is effectively prevented by incorporating one or more N-.alpha.-sulfoalkylated amino acids into at least one of the photosensitive element, the image receiving element or the liquid processing composition. A process using the same is also disclosed.