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. 15, 1991
Filed:
Feb. 06, 1989
Applicant:
Inventors:
Mitsunori Hirano, Kanagawa, JP;
Masato Hirano, Kanagawa, JP;
Morio Yagihara, Kanagawa, JP;
Hisashi Okada, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430434 ; 430488 ; 430489 ;
Abstract
A process for development-processing a black-and-white silver halide light-sensitive material is disclosed, which comprises using a developer containing at least one compound represented by formulae (I) and (II): ##STR1## wherein R.sub.1 and R.sub.2 each represents hydrogen atom, an alkyl group or an aryl group;
Hirano, Mitsunori. (1991). Process for photographic development processing (U.S. Patent No. 4985348). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4985348
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile