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.:

US 7189877 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 13, 2007

Filed:

Sep. 17, 2003
Applicants:

Masakazu Nishiyama, Shunan, JP;

Hiroaki Tenma, Shunan, JP;

Hisao Eguchi, Shunan, JP;

Inventors:

Masakazu Nishiyama, Shunan, JP;

Hiroaki Tenma, Shunan, JP;

Hisao Eguchi, Shunan, JP;

Assignee:

Tosch Corporation, Yamaguchi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 211/54 (2006.01);
U.S. Cl.
CPC ...
Abstract

Arylamine derivatives that can be utilized as hole transport or hole injection materials of organic electroluminescence devices, electrophotographic reactors, etc., and synthetic intermediates thereof, and processes of producing those. The arylamine derivative is represented by the general formula (1): wherein Rto Reach independently represents a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a halogen atom, an amino group, etc.; Arand Areach independently represents a substituted or unsubstituted aryl group or hetero-aromatic group, and Arand Armay form a nitrogen-containing heterocyclic ring together with the nitrogen atom to which Arand Arbond; and Arrepresents a substituted or unsubstituted arylene group.


Find Patent Forward Citations

Loading…