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. 31, 1976
Filed:
Oct. 18, 1974
Applicant:
Inventor:
Mitsuo Saito, Minami-ashigara, JA;
Assignee:
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
96108 ; 96107 ; 96109 ; 96139 ; 96140 ;
Abstract
A direct positive silver halide photographic emulsion comprising a hydrophilic colloid containing (1) silver halide grains the surface of which is fogged with a sulfur compound and a gold compound, or (2) silver halide grains which are (a) ripened with a sulfur compound and then the surface of which is fogged by optical exposure or (b) ripened with a sulfur compound and a gold compound and then the surface of which is fogged by optical exposure.
Saito, Mitsuo. (1976). Direct-positive emulsion containing silver halide grains internally (U.S. Patent No. 3977880). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3977880
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile