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. 14, 1976
Filed:
Oct. 18, 1973
Applicant:
Inventor:
Seiji Hotta, Hirakata, JA;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
252 / ; 427 15 ;
Abstract
An electrophotographic developer containing a lake of a diphenylmethane color of the formula: ##SPC1## Wherein R.sub.1 and R.sub.3 are each hydrogen, phenyl or alkyl substituted or unsubstituted with hydroxyl, alkoxy, cyano, carbalkoxy, carbamoyl or phenyl, R.sub.2 and R.sub.4 are each alkyl substituted or unsubstituted with hydroxyl, alkoxy, cyano, carbalkoxy, carbamoyl or phenyl and R.sub.5 and R.sub.6 are each hydrogen, alkoxy or halogen.
Hotta, Seiji. (1976). Diphenylmethane electrophotographic liquid developer (U.S. Patent No. 3980577). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3980577
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile