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. 03, 2006
Filed:
Mar. 24, 2003
Applicant:
Kiyoshi Itou, Tokyo, JP;
Inventor:
Kiyoshi Itou, Tokyo, JP;
Assignee:
Dai Nippon Printing Co., LTD, Tokyo-To, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 251/54 (2006.01); C08K 5/34 (2006.01); H01J 63/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a new carbazole based compound represented by the following formula (1):wherein R is a substituent selected among a hydrogen atom, an alkyl group, an alkyl ether group, a sulfoamino group, a carbon cyclic group, a heterocyclic group and an aromatic cyclic group, 'n' is integer, where at least one substituent other than the hydrogen atom are introduced and the each substituent may be the same or different.