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:
Mar. 29, 2005
Filed:
Dec. 03, 2002
Applicants:
Jian Ping Chen, San Jose, CA (US);
Xiao-chang Charles LI, Union City, CA (US);
Koichi Suzuki, Yokohama, JP;
Kazunori Ueno, Ebina, JP;
Inventors:
Jian Ping Chen, San Jose, CA (US);
Xiao-Chang Charles Li, Union City, CA (US);
Koichi Suzuki, Yokohama, JP;
Kazunori Ueno, Ebina, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B033/12 ;
U.S. Cl.
CPC ...
Abstract
The present invention relates to an organic light emitting device (OLED) in which a binaphthalene derivative is used as the emissive layer and/or one or more of the charge transport layers, or as a host or dopant material for one or more of such layers.