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. 10, 1986
Filed:
Sep. 23, 1983
Applicant:
Inventors:
Mitsutoshi Anzai, Tokyo, JP;
Masahiko Yamaguchi, Tokyo, JP;
Michihiro Gonda, Tokyo, JP;
Mikiko Kanasugi, Tokyo, JP;
Toshio Obara, Tokyo, JP;
Assignee:
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
346221 ; 428195 ; 428199 ; 428913 ;
Abstract
A fluoran compound represented by general formula: ##STR1## where each of R.sub.1 and R.sub.2 is a C.sub.1 -C.sub.4 alkyl group, a cycloalkyl group or an aryl group, or R.sub.1 and R.sub.2 may form together with N a saturated ring, R.sub.3 is a benzyl or phenyl group which may be substituted, and R.sub.4 is a C.sub.1 -C.sub.4 alkyl group.