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:
Sep. 30, 1980
Filed:
Aug. 22, 1979
Applicant:
Inventors:
Masaru Kanbe, Hino, JP;
Kazumasa Watanabe, Hino, JP;
Morito Uemura, Hino, JP;
Jiro Takahashi, Hino, JP;
Ryuichiro Kobayashi, Hino, JP;
Tatsuhiko Kobayashi, Hino, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07C / ;
U.S. Cl.
CPC ...
544159 ; 260165 ; 260198 ; 2605 / ; 546206 ;
Abstract
2-Sulfamoyl-5-sulfamido-1-naphthols represented by the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be the same or different and each represent a hydrogen atom, a straight-chain alkyl group, a branched alkyl group or a cycloalkyl group; or R.sup.1 and R.sup.2 can be connected with each other, together with the nitrogen atom, to form a ##STR2##