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:
Aug. 30, 1988
Filed:
Jan. 21, 1986
Applicant:
Inventors:
Makoto Umemoto, Minami-ashigara, JP;
Yoshio Seoka, Minami-ashigara, JP;
Masakazu Morigaki, Minami-ashigara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430546 ; 430548 ; 430551 ;
Abstract
Photographic coupler solvents which are solid at ordinary temperature are described for incorporation in photographic emulsions and elements. The solvents are employed in combination with a cyan dye forming coupler of the specific phenol type and a discoloration inhibitor of the dihydroxybenzene ether type to improve long-term preservability of the developed cyan dye particularly by exposure to mild heat and humidity.