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:
Jun. 20, 2000
Filed:
Apr. 23, 1998
Applicant:
Inventor:
Yuji Hosoi, Hino, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430490 ; 430480 ; 430483 ; 430486 ;
Abstract
A photographic developer which is improved in storage stability is disclosed, comprising a developing agent represented by formula (1) and a compound represented by formula (2). ##STR1## wherein R.sub.1 are ##STR2## R.sub.2 and R.sub.3 independently are a hydrogen atom or an alkaline metal atom;