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:
Apr. 23, 2013
Filed:
Feb. 23, 2011
Applicants:
Shijun Zheng, San Diego, CA (US);
Liping MA, San Diego, CA (US);
Amane Mochizuki, Carlsbad, CA (US);
Inventors:
Shijun Zheng, San Diego, CA (US);
Liping Ma, San Diego, CA (US);
Amane Mochizuki, Carlsbad, CA (US);
Assignee:
Nitto Denko Corporation, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Compounds including optionally substituted Ring Systems 1-4 are described. These compounds may be used as hosts in light-emitting devices. A light-emitting device comprising a compound selected from optionally substituted Ring Systems 1-4 is also described. The Ring Systems 1-4 are: