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:
Oct. 10, 1989
Filed:
Aug. 08, 1988
Applicant:
Inventors:
Shoji Ishiguro, Kanagawa, JP;
Shigeo Hirano, Kanagawa, JP;
Tadao Shishido, Kanagawa, JP;
Akio Miyake, Osaka, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430264 ; 430267 ; 430445 ; 430446 ; 430448 ; 430598 ; 430614 ; 430615 ;
Abstract
A process for forming a superhigh contrast negative image with a stable developer is disclosed, which comprises development processing a silver halide photographic material in the presence of a compound of formula (I) and a compound of formula (II) as defined in the specification.
Quick Actions:
Ishiguro, Shoji. (1989). Process for forming a superhigh contrast negative image (U.S. Patent No. 4873172). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4873172
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